On the Move - News

  • Tsubaki Advantage

    Tsubaki Pin Gear Drive Unit Replaces Gear Rack Systems

    Tsubaki manufactures the perfect substitute to gear rack systems. The pin gear drive unit is a combination of a pin-structure wheel/rack and a gear with special tooth profile that allows greater freedom when designing rotating and linear drive units.

    Configurations. A pin gear drive unit is a set consisting of pin gear and pin wheel or pin rack. There are two configurations available: Rotational Drive and Linear Drive. The Rotational Drive consists of a pin wheel and pin gear; the pin wheel diameter can be chosen freely. The Linear Drive, on the other hand, consists of a pin rack and pin gear; the pin rack length can also be chosen freely in accordance to customer requirement.

    Structure. The pin gear on these drive units feature specially designed teeth with a unique profile that engage continuously and smoothly with the rollers. The teeth are hardened to improve strength and wear resistance. The tooth profile is based on an approximate involute to ensure smooth engagement with the pin wheel or rack, and employs a unique design that further increase strength.

    Model. The standard series is made of steel; the S Series, made of stainless steel is also available. The structure for both models are similar. Here are some features and advantages of these pin gear drive units:

    • Easy Installation – The units employs a separable segment design for easy installation. It can even be used with rough installation precision.
    • Large transmission torque – The pin gear is designed in forgiving modules and good pin wheel or rack balance provides large transmission toque.
    • Can be used in large-scale equipment – By increasing the number of segments, the wheel type units can be used in large drive units compatible with large-scale equipment.
    • Wide applications – The pin gear drive units are available in steel, stainless steel, and surface-coated models.

    Application Examples:

    • Environmental sanitation equipment
    • Welding Roll over
    • Railroad turntable
    • Revolving door mechanism
    • Casting line
    • Rotary kiln
    • Drive for large transporter
    • Solar tracking system
    • Pallet changer for machine tool
    • Handling robot
    • Pallet pool for machine tool


  • Cost Savings

    Pin Gear Drive Units Nomenclature

    ROTARY DRIVE

    PDU70-GW-70P

    PDU70

    GW

    70P

    Frame No:

    PDU: Standard Series (Steel)

    PDUS: S Series (Stainless Steel)

    Pin Wheel

    GW: Outer Drive

    NW: Inner Drive

    Roller Quantity

     

    PDU70-GW-30/90P (Pin Wheel with Partial Circumference: less than 360 degrees)

    PDU70

    GW

    70P

    90P

    Frame No:

    PDU: Standard Series (Steel)

    PDUS: S Series (Stainless Steel)

    Pin Wheel

    GW: Outer Drive

    NW: Inner Drive

    Roller Quantity

    Roller Quantity for Full Circumference

    LINEAR DRIVE

    PDU55-FR-18P

    PDU55

    FR

    18P

    Frame No:

    PDU: Standard Series (Steel)

    PDUS: S Series (Stainless Steel)

    Pin Rack

    FR: Flat Rack

    AR: Angle Rack

    Roller Quantity

    PIN GEAR

    PDU90-S-1B-24T

    PDU90

    S

    1B

    24T

    Frame No:

    PDU: Standard Series (Steel)

    PDUS: S Series (Stainless Steel)

    Pin Gear

    G: Outer Drive

    N: Inner Drive

    S: Linear Drive

    Hub Type

    1B: B Type (one hub)

    1C: C Type (two hubs)

    No. of Teeth


  • Tech Time

    Pin Gear Drive Selection Procedure

    1. Pre-select the pitch circle diameter of the pin gear drive unit

    Rotational Operation

    1. Pre-select the pitch circle diameter of the pin wheel that suits the size of the equipment.
    2. Find out the reduction gear ratio required, then pre-select the pitch circle diameter of the pin gear.

    Linear Operation

    Pre-select the pitch circle diameter of the pin gear based on the equipment layout

    2. Calculate the correct tangential load (Fw)

    Calculate the applied tangential load (Fw) that will act on the pin wheel or rack based on load conditions.

    3. Calculate the corrected tangential load (Ft)

    To calculate the corrected tangential load (Ft), obtain the service factor (KS, see Table 1) based on operating conditions. Obtain speed factor (KV, see Table 2) based on the tangential speed, and then multiply the product thereof by the applied tangential load (Fw).

    Ft = KS x KV x Fw

    Table 1: Service Factor (KS)

    Operation Status

    Operating Hours / Day

    Up to 3 Hours

    Up to 12 Hours

    Up to 24 Hours

    Even Load

    1.00 (1.25)

    1.15 (1.40)

    1.25 (1.50)

    Load w/ Small Impacts

    1.25 (1.50)

    1.40 (1.70)

    1.60 (2.00)

    Load w/ Large Impacts

    1.50 (1.80)

    1.75 (2.15)

    2.00 (2.50)

    Use the values in the parentheses if operation stops 10 or more times an hour.

    Table 2: Speed Factor (KV)

    Tangential Speed: 50m/min.

    0

    10

    15

    20

    25

    30

    35

    40

    50

    1.02

    1.04

    1.05

    1.06

    1.06

    1.07

    1.08

    1.1

    1.2

    4. Select the frame number of the pin gear drive unit

    Using the allowable tangential load (Fp) of each pin wheel/pin rack frame number and the corrected tangential load (Ft), select the appropriate pin gear drive unit that satisfies the following condition:

    Allowable tangential load (Fp) > Corrected tangential load (Ft)

    5. Select the model number

    Pin Wheels

    From the selected frame number and pre-selected pin wheel pitch circle diameter, choose the quantity of rollers of the pin wheel closest to the pitch circle diameter.

    Pin Racks

    From the selected frame number and total running distance (or total movement distance), calculate the quantity of rack rollers.

    Pin Gears

    From the selected frame number and pre-selected pin gear pitch circle diameter, choose the model number of the pin gear with the number of teeth closest to the pitch circle diameter.

    Note: There are limits to the extent to which numbers of gear teeth can be used. If a gear does not have enough teeth, select a gear with larger number of teeth.

    Lubrication

    Before operation, coat all peripheral roller surfaces with extreme pressure grease. The interior of pin wheel and pin rack rollers are pre-coated with lubricating grease. Contact Tsubaki if using environments where lubricating grease cannot be used, such as under water, or if using at temperature if 130 degrees Celsius or higher.

    For guide on selection, contact Tsubaki’s technical team: .(JavaScript must be enabled to view this email address)


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Tsubaki Canada - Newsletter - Issue 37: Pony Series Steel Bushed Chains – Elevator Chains

On the Move - News

  • Tsubaki Advantage

    Pony Series Steel Bushed Chains – Elevator Chains

     

    Designed for aggressive bulk material handling environments, Pony Series steel bushed chains are manufactured with premium high-quality steel through a refined proprietary manufacturing process. It provides superior strength, maximum toughness and dependability that is a must for environments with harsh fine particulates. It comes in 102-B (4”), 111 (4.76”) and 110 (6”) chain sizes and is commonly used in elevators with K-2 attachments.

    Built with the strength to perform in environments such as cement, gypsum, coal, sugar, grain, clay, coke/carbon, fertilizer, potash, lime, and salt. 

    • Made from premium high-quality steel 
    • Premier ultimate strength rating exceeding many rival designs.
    • Refined series of heat treatments provide wear resistance and unparalleled toughness for demanding forces of aggregate elevators.
    • Comes in 102-B (4”), 111 (4.76”) and 110 (6”) chain sizes.  
    • Assembled in 7-10 working days with either carbon steel or Titan XL Pins.
    • Premium upgrades, such as plated pins/ bushings and patented joint seals, available for specific applications. 


  • Cost Savings

    Roof Truss Press

    Issue

    One of Tsubaki’s end users manufactures prefabricate wooden roof trusses that have been used widely in roof structures. One of their roof truss presses had our competitor’s sticker chain installed. However, the chain did not last long enough and damaged the finished product. The competitor’s chain was required to be lubricated to function effectively, however, the lubricant gets mixed up with the glue when the roller pushes onto the stud to bind the wood together. 

    Tsubaki Solution

    To combat this, Tsubaki designed a Lambda version of our sticker chain to prevent lubricating the chain. As a result, Tsubaki chain lasted for 1,035 days versus the competitor’s 416 days. On top of that, defective products were avoided since lubrication remains intact in the chain with no contact with the stud or the wood.

    Cost Savings

    By switching to Tsubaki, this end user saved $3,076.78.


  • Tech Time

    Tsubaki’s Products Add Value to Your Operation

    Tsubaki products perform exceptionally well due to many reasons. From engineered design to high quality materials to refined proprietary manufacturing process, our products are tested every step of the way to ensure they meet high standards of this ever-demanding industry.

    What sets us apart from other manufacturers? 

    • Design of chain components follow ASME B29 standards
    • Component designs maintain high press fits and appropriate running clearance
    • High quality steel is used to manufacture components 
    • High quality holes
    • Consistent tolerances
    • High quality, consistent pin and bushing holes 
    • Verification and certification of materials 
    • Inspection of imported components, chains, and outside services 
    • Carefully selected and proven vendors for outside services 

    Every product is designed to add value to your valuable operation. 

    Here are some available value-adding options to consider:

    • Titan XL pins increases hardness of pin surface. It improves wear and adds corrosion resistance. 
    • Hard chrome plate bushing OD increases wear resistance and gives corrosion resistance. It is especially useful when rollers wear through bushing OD.
    • Hardened roller inserts increase wear resistance. 
    • Hard chrome plate bushing ID increases hardness to improve wear resistance and adds corrosion resistance. 
    • Hard (17-4 or 410) stainless pins and bushings increase corrosion resistance. 
    • UWP and 3X plating on components add corrosion resistance. 
    • All stainless-steel constructed items increase corrosion resistance.


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Tech Talk

Engineering Chain - Elevator Types & Buckets

On the Move - News

  • Tsubaki Advantage

    Engineering Chain - Elevator Types & Buckets

    Three types of bucket elevator types are Centrifugal Discharge, Continuous/ Gravity Discharge and Positive Discharge.

    1. Centrifugal Discharge Elevators

    This is the most common type of elevator in the field that uses centrifugal force to discharge the product. It is used to transport fine, free flowing materials with the maximum lump size of 2” and normally operates around 280-330 FPM. Typically utilizes a single strand chain with K-style with attachments every 2nd, 3rd or 4th and commonly uses AA, AC, or ACS style buckets.

    Advantages

    Disadvantages

    • Low startup cost
    • Uses less space
    • Large capacity range
    • High speed/ high cycle
    • Components are often marginally sized


    Centrifugal-Discharge Elevator Bucket Types

    2. Continuous/ Gravity Discharge Elevators

    This is commonly used to transport less free-flowing materials such as powers and materials composed of large lumps and can typically operate in the 80-165 FPM range. The buckets are spaced closed together without any gap and the flanged end of the preceding bucket acts as a chute that leads material to the discharge spout. Commonly utilizes a dual-strands chain setup with G attachments every 2nd or 3rd pitch which uses MF, HF or SC style buckets. Single strand options with K-attachments are also possible and normally use MF or HF style buckets.

    Advantages

    Disadvantages

    • The process does not damage material
    • Large capacity capability
    • Low speed/low cycle
    • High startup cost
    • Uses up more space
    • Difficult, expensive rebuild


    Continuous-Discharge Bucket Types

    3. Positive Discharge Elevators

    The least common elevator type that utilizes material that is sticky, light and fluffy or delicate load such as fruits. After the buckets pass over the head sprocket, they are inverted over the idler sprocket, therefore providing a positive discharge of material. It normally operates at slower speeds of about 100 FPM or less. It requires a dual strand configuration and uses MF, HF or SC style buckets.

    Positive-Discharge Bucket Types


  • Cost Savings

    One-Touch Inspection Door® gives you easy access to your conveyors

    Tsubaki One-Touch inspection Doors, our patented design, provide dust and moisture tight protection for industrial conveyor enclosures and material processing and handling equipment. They are designed with superior workmanship and durability to last inside and outdoors.

    Features

    • High-quality mild steel or stainless-steel framework provides long service life and robustness.
    • Long-lasting hinges and self-locking handles are easy to open and close.
    • Gaskets are specially designed for a tight fit against water and dust while withstanding temperatures of -95⁰F to 550⁰F.
    • Easy and quick installation to existing equipment without any need for costly structural changes.
    • Has lockout ability to prevent entry to equipment.
    • A protective screen for visual inspection is readily available on P1, P2 and P3 styles and is OSHA standards approved

     

    Common sizes and configuration in mild steel and stainless steel are readily stocked. Custom Made-To-Order sizes are available upon request. Regardless of your project, Tsubaki has a One-Touch Inspection Door to save you time and meet your needs. 


  • Tech Time

    Roller Chain and Sprockets Troubleshooting Guide - Pin Related Issues

    Problem: Breakage of pin.

    Possible Causes:

    • Excessively large shock loads.

    Tsubaki Solution:

    • Reduce shock loads by making other actions smoother such as start-up & stopping.
    • Exposed to a r repetitive load greater than fatigue limit
    • Remove excessive repetitive load.
    • Increased number of chains or size.
    • Corrosion.
    • Use casing for chain protection.
    • Clean and lubricate the chain periodically.

     

    Problem: Pin is rotating or starts sticking out.

    Possible Causes:

    • Load is excessive.
    • Not lubricated properly.

    Tsubaki Solution:

    • Replace chain with new chain.
    • Improve lubrication and loading conditions.
    • Chain operating with high load without appropriate lubrication causes friction between pin and bushing. This causes the pin to rotate and stick out, leading to chain breakage.
    • Chain should be replaced immediately.
    • Do not weld or reuse pins. If it is worn, check installation and ensure proper lubrication is done.

     

    Problem: Wear or rust occurs at the connecting pin in a lifting application or similar operation.

    Possible Causes:

    • Initial lubrication not done properly at installation.

    Tsubaki Solution:

    • Replace connecting link. If wear is excessive, replace chain as well. Ensure proper installation of connecting section for devices such as end brackets used for lifting applications, etc.
    • Lubrication


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Tsubaki Canada - Newsletter - Issue 34: Bulk Material Handling Applications

On the Move - News

  • Tsubaki Advantage

    G8 Series Heavy Duty Chains and Sprockets

    Tsubaki’s G8 Series is the rebirth of the drive chain with improved quality and performance compared to its predecessors. Heavy Duty Drive Chain has a higher maximum allowable load (MAL) and tensile strength than standard RS roller chain.

    • Super Chain has 5-10% higher maximum allowable load than the G7 series.

    • Super-H Chain has 20% higher maximum allowable load than the G7 series.

    • RS-HT Chain has twice the wear life of G7 series and offers slip fit connecting links.

    Heavy Duty chains offer many benefits

    1) Saves space.

    For example, RS80-SUP-H-1 Super-H Chain has the same maximum allowable load limit as RS80-2-RP double strand chain. This means a single strand of Super-H Chain can replace the need of double strands. Furthermore, a single strand chain requires a smaller sprocket compared to that of a double strand chain. By using a smaller chain and sprocket, more compact parts are used, saving space in your operation.

     

    2) Saves Money

    Using smaller chains and sprockets can reduce costs. Below chart is a cost comparison between Super-H Chain and Double Strand RS Roller Chain – reduced cost by 50%!

     

     

    RS® Tough Tooth Sprockets are built with higher strength and durability to keep up with the new G8 Series Heavy Duty Drive Chains.

    • Teeth and hub are designed with abundant strength to handle increased strength of G8 Series Heavy Duty Chain.

    • All models come with hardened teeth for greater wear resistance.

    • For harsh operating conditions, a special coating is available for further increasing tooth hardness. With Vickers hardness of over 800, the coating reduces chain and sprocket replacement frequency by providing more wear resistance.


  • Cost Savings

    Combat High Speed and Accelerated Elongation with Tsubaki’s Titan Chain

    Issue:

    An end user’s re-saw outfeed was causing frequent unplanned downtime. The serpentine application was using a competitor’s 80 riveted chain that runs through a series of idler sprockets with a lot of articulation running consistently at high speed with no room for adjustment. Lubrication was difficult due to its location, causing accelerated elongation and chain frequently jumping off the sprockets as it elongated.  The entire chain run had to be replaced every four (4) months; but more significantly it caused 5-10 unplanned downtimes per week. This included 15 minutes of maintenance time per incident to do a “quick fix” and get the line running again at a rate of $100/minute of maintenance cost to the mill.


    Tsubaki Solution:

    To combat the issue of high speed, accelerated elongation and lubrication, Tsubaki recommended 80 Titan chain. Titan’s special coated pins provide extra hard, low friction surface limiting the wear between the pin and bushing area, significantly extending wear life and providing robust performance especially in high-speed applications. In addition, Tsubaki’s Performax bushings with lube grooves on the inner surface retain lubrication at the point of contact, further increasing wear life.


    Cost Savings:

    Tsubaki’s Titan Chain lasted over a year compared to the competitor’s four (4) months and eliminated the unplanned downtimes. With a higher degree of reliability, Tsubaki helped the customer save $174,775.77.


  • Tech Time

    Roller Chain and Sprockets Troubleshooting Guide – Link Plate Related Issues

    Read below for a quick Tsubaki troubleshooting guide for commonly occurring problems with link plates.

    Problem: Link plate breakage.

     
    Possible Causes:
    • Excessively large shock load.
    Tsubaki Solution:
    • Reduce shock loads by making other actions such as start-up and stopping smoother (use of shock absorber, etc.).
    • Switch to a Heavy Duty “HT” chain or increase number or size of chains.
    • Vibrations occurring in the chain.
    • Use an anti-vibration device (example, idler or tensioner).
    • Large inertia in driver machine (excessive load).
    • Switch to a Super Series chain or increase number or size of chains.
    • Corrosion.
    • Clean the chain periodically.
    • Use a casing for chain protection.
    • Switch to a corrosion resistant chain.


    Problem: Link plates have cracks which are perpendicular to the direction of pull.

     
    Possible Causes:
    • Loads are exceeding maximum allowable load and it is being repeated.
    Tsubaki Solution:
    • If possible, remove all large loads. If not possible, increase the number and size of chains.
    • Switch to Super Series or Super-H chains.

    Problem: Link pate holes are deformed.   

     

    Possible Causes:
    • Excessive load.
    Tsubaki Solution:
    • Remove excessive load.
    • Switch to a Heavy Duty “HT” or Super-H chain.


    Problem: Cracks caused by corrosion stress (bow shaped cracks).

     

    Possible Causes:
    • Chain is exposed to corrosive (acidic or alkaline) environment.
    Tsubaki Solution:
    • Replace chain entirely.
    • Use of casing for protection against the environment.
    • Switch to Stainless Steel chain or Super Stainless Steel chain.
    •  


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Tsubaki Canada - Newsletter - Issue 35: G8 Series Heavy Duty Chains and Sprockets

On the Move - News

  • Tsubaki Advantage

    G8 Series Heavy Duty Chains and Sprockets

    Tsubaki’s G8 Series is the rebirth of the drive chain with improved quality and performance compared to its predecessors. Heavy Duty Drive Chain has a higher maximum allowable load (MAL) and tensile strength than standard RS roller chain.

    • Super Chain has 5-10% higher maximum allowable load than the G7 series.

    • Super-H Chain has 20% higher maximum allowable load than the G7 series.

    • RS-HT Chain has twice the wear life of G7 series and offers slip fit connecting links.

    Heavy Duty chains offer many benefits

    1) Saves space.

    For example, RS80-SUP-H-1 Super-H Chain has the same maximum allowable load limit as RS80-2-RP double strand chain. This means a single strand of Super-H Chain can replace the need of double strands. Furthermore, a single strand chain requires a smaller sprocket compared to that of a double strand chain. By using a smaller chain and sprocket, more compact parts are used, saving space in your operation.

     

    2) Saves Money

    Using smaller chains and sprockets can reduce costs. Below chart is a cost comparison between Super-H Chain and Double Strand RS Roller Chain – reduced cost by 50%!

     

     

    RS® Tough Tooth Sprockets are built with higher strength and durability to keep up with the new G8 Series Heavy Duty Drive Chains.

    • Teeth and hub are designed with abundant strength to handle increased strength of G8 Series Heavy Duty Chain.

    • All models come with hardened teeth for greater wear resistance.

    • For harsh operating conditions, a special coating is available for further increasing tooth hardness. With Vickers hardness of over 800, the coating reduces chain and sprocket replacement frequency by providing more wear resistance.


  • Cost Savings

    Combat High Speed and Accelerated Elongation with Tsubaki’s Titan Chain

    Issue:

    An end user’s re-saw outfeed was causing frequent unplanned downtime. The serpentine application was using a competitor’s 80 riveted chain that runs through a series of idler sprockets with a lot of articulation running consistently at high speed with no room for adjustment. Lubrication was difficult due to its location, causing accelerated elongation and chain frequently jumping off the sprockets as it elongated.  The entire chain run had to be replaced every four (4) months; but more significantly it caused 5-10 unplanned downtimes per week. This included 15 minutes of maintenance time per incident to do a “quick fix” and get the line running again at a rate of $100/minute of maintenance cost to the mill.


    Tsubaki Solution:

    To combat the issue of high speed, accelerated elongation and lubrication, Tsubaki recommended 80 Titan chain. Titan’s special coated pins provide extra hard, low friction surface limiting the wear between the pin and bushing area, significantly extending wear life and providing robust performance especially in high-speed applications. In addition, Tsubaki’s Performax bushings with lube grooves on the inner surface retain lubrication at the point of contact, further increasing wear life.


    Cost Savings:

    Tsubaki’s Titan Chain lasted over a year compared to the competitor’s four (4) months and eliminated the unplanned downtimes. With a higher degree of reliability, Tsubaki helped the customer save $174,775.77.


  • Tech Time

    Roller Chain and Sprockets Troubleshooting Guide – Link Plate Related Issues

    Read below for a quick Tsubaki troubleshooting guide for commonly occurring problems with link plates.

    Problem: Link plate breakage.

     
    Possible Causes:
    • Excessively large shock load.
    Tsubaki Solution:
    • Reduce shock loads by making other actions such as start-up and stopping smoother (use of shock absorber, etc.).
    • Switch to a Heavy Duty “HT” chain or increase number or size of chains.
    • Vibrations occurring in the chain.
    • Use an anti-vibration device (example, idler or tensioner).
    • Large inertia in driver machine (excessive load).
    • Switch to a Super Series chain or increase number or size of chains.
    • Corrosion.
    • Clean the chain periodically.
    • Use a casing for chain protection.
    • Switch to a corrosion resistant chain.


    Problem: Link plates have cracks which are perpendicular to the direction of pull.

     
    Possible Causes:
    • Loads are exceeding maximum allowable load and it is being repeated.
    Tsubaki Solution:
    • If possible, remove all large loads. If not possible, increase the number and size of chains.
    • Switch to Super Series or Super-H chains.

    Problem: Link pate holes are deformed.   

     

    Possible Causes:
    • Excessive load.
    Tsubaki Solution:
    • Remove excessive load.
    • Switch to a Heavy Duty “HT” or Super-H chain.


    Problem: Cracks caused by corrosion stress (bow shaped cracks).

     

    Possible Causes:
    • Chain is exposed to corrosive (acidic or alkaline) environment.
    Tsubaki Solution:
    • Replace chain entirely.
    • Use of casing for protection against the environment.
    • Switch to Stainless Steel chain or Super Stainless Steel chain.
     


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Tsubaki Canada - Newsletter - Issue 34: Bulk Material Handling Applications

On the Move - News

  • Tsubaki Advantage

    Bulk Material Handling Assemblies

    Tsubaki of Canada is a one-stop shop for all your premium chain and sprocket needs. For bulk material handling applications, rely on Tsubaki’s field experience and manufacturing knowledge of drum sprockets and complete shaft assemblies. Whatever design, hub style or construction type you require, Tsubaki can customize the most suitable drum sprocket and assemblies.

    The standard design for most applications

    The standard for most applications are full-face drum sprockets.  It has an increased surface area that results in lower contact pressure between the sprocket and the chain providing greater wearability. For a sprocket that can handle greater misalignment, A-plate drum sprocket could be a perfect alternative, and provide bulk material pass-through. However, less contact area may result in lower life. Optional style with a flange is also offered, where a separate piece is welded to a plate.

    Hub Styles

    Three hub styles are available: Style 1, for bores up to 3-15/16”; Style 2, with double-hub plates for bores greater than 4”. Split Taper bushings are standard for single style hubs; and Style 3, XTB type bushings are recommended for double-hub construction for easy installation.

    Shaft Assembly

    Since replacing shrunk fit components can be costly, we recommend complete shaft assemblies to reduce installation cost. Here are some of the mounting methods offered:

    • Finished bore – Split Fit & Heat Shrunk
    • Split-Taper, Taper-Lock & QD Bushing
    • Split to Bolt
    • Idler Sprockets (Bearing/Urethane/Bronze/Other)
    • Keyless locking (ie: Power-Lock)
    • Bearing Installation

    Construction

    Drum sprockets come in single, double or triple construction. Teeth of the single drum sprocket engage with the chain and provide positive transaction. The can is the main structural member of the drum assembly, which can also be supplied without teeth to create a traction wheel or idler. Double drum sprocket is supplied with a shroud to provide structural rigidity and strength, unless requested by the customer otherwise. On a triple-strand drum assembly or greater, support plates are installed to provide additional strength.

    For any of your customized requirements, contact the experts at Tsubaki!


  • Cost Savings

    Overhead Gantry Crane

    CUSTOMER CHALLENGE

    An Ontario based automotive parts company have had issues with their overhead gantry crane. The previous installation was using a competitor’s plastic cable carrier. It is a long carrier that glides on itself. Due to the length, the links would snap at the bend as it travels causing the cables to pop out of the carrier.  The links were breaking every two to four weeks causing downtime and application issues.  

    TSUBAKI SOLUTION

    After inspecting the issue, Tsubaki recommended a hybrid cable carrier, Varitrak MC. Varitrak MC has a locking bolt mechanism that gives more rigidity to the installation. Aluminum frame stays were also installed for additional strength in avoiding the cables to pop out. To prevent the carrier from breaking, Tsubaki recommended the addition of RKR links that allowed the system some allowance to reverse backwards. When application travel exceeds the self-supporting length of the carrier, Varitrak MC carrier systems are designed to glide on themselves in a guide channel.

    SOLUTION BENEFITS

    By switching to Tsubaki, the application has been running smoothly with no issues for 8 months and counting, saving the customer $4,578.14


  • Tech Time

    Roller Chain and Sprockets Troubleshooting Guide

    Read below for a quick Tsubaki troubleshooting guide for commonly occurring problems with roller chain and sprockets.

    Problem: Chain is riding up on the sprocket.

    Possible Causes:

    • Roller chain and sprockets do not match.
    • Chain load is exceeding limit.
    • Chain elongation caused by wear or worn sprocket teeth.

     

    Tsubaki Solution:

    • Replace chain or sprocket and match with correct size.
    • Reduce load or increase chain strands or chain size to uphold greater load.
    • Replace chain and sprockets with new ones.

     

     

     Problem: Unusual noise.

    Possible Causes:

    • Incorrect installation of the sprocket or shaft.
    • Loose bearings or chain casing.
    • Chain has excessive or insufficient slack.
    • Worn chain or sprocket.
    • Lack of lubrication.

    Tsubaki Solution:

    • Inspect and correct alignment.
       
    • Inspect and tighten all bolts and nuts.
    • Fix distance between shafts for appropriate amount of slack.
    • Replace with new chain and sprocket.
    • Lubricate adequately based on operating environment.


    Problem: Chain is vibrating excessively.

    Possible Causes:

    • Vibrating with external force is caused by a combination of chain speed, tension and distance between drive and driven sprocket.Load fluctuations are excessively large.

     

    Tsubaki Solution:

    • Prevent vibration by two ways:

    a) Change natural frequency of chain.
    Change tension by either applying an initial tension or adjusting existing one. Install tensioner to change chain span. Replace chain size or add multiple strands.

                    b) Change vibration frequency.

    Change sprocket’s rotation speed. Re-evaluate device set-up.

    • Reduce vibrations mechanically.

      • Install a guide shoe.
      • Install a self- adjusting tensioner on slack side.
      • Reduce fluctuations with fluid coupling or similar technique.


     

    Problem: Chain has poor separation from sprocket teeth, resulting into winding into sprocket.

    Possible Causes:

    • Too large of a span between shafts.
    • Too much chain slack.
    • Chain elongation due to chain wear or worn sprocket teeth.

    Tsubaki Solution:

    • Install an Idler.
    • Install a tensioner. Adjust chain length or distance between shafts.
    • Replace with new chain and sprocket.

     

    Problem: Chain is rusting.

    Possible Causes:

    • Environmental factors can cause rust if surface is not protected by appropriate lubricant.

    Tsubaki Solution:

    • Lubrication can reduce friction while also providing a seal against dust, dirt and water. This helps to reduce oxidation and prevent rusting.   

     

    Problem: Inside surface of link plates and sides of sprocket teeth are excessively worn.

    Possible Causes:

    • Chain and sprocket are misaligned.

     

    Tsubaki Solution:

    • Correct installation and alignment of sprocket and shaft.

     

    Problem: Link plate side surfaces and pin heads are excessively worn.

    Possible Causes:

    • Guides are improperly installed.

     

    Tsubaki Solution:

    • Check guide’s condition and increase gap between guides and the chain.

     

    Problem: Improper bending of chain and tight joints.  

    Possible Causes:

    • Chain is incorrectly installed.
    • Contamination caused by dust or dirt.
    • Excessive load or bent in pin.
    • Corrosion or rusting.
    • Lack of proper lubrication
    • Seizing of pin and bushing from high speed operation, leading to improper bending and chain breakage.  

    Tsubaki Solution:

    • Inspect and correct installation.
    • Wash chain separately and lubricate accordingly.
    • Reduce load or increase number of chains or size.
    • Install chain chasing for protection.
    • Replace with anti-corrosion chain
    • Adjust level of lubrication based on operating conditions.
    • Adjust operating conditions (ex. speed, load, lubrication). 

     

     

     

    Problem: Spreading of link plates. 

    Possible Causes:

    • Improper installation is causing uneven or excessive loading.

     

    Tsubaki Solution:

    • Correct installation and replace with new chain.


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Tsubaki Canada - Newsletter - Issue 33: Asphalt Industry Solutions

On the Move - News

  • Tsubaki Advantage

    Asphalt Chain

    Engineered for Asphalt Operations

    Tsubaki of Canada’s asphalt chains are engineered to withstand the demands of the paving season. Hard aggregates, shock loads, intense heat and almost around-the-clock operation means every component in your operation must perform exceptionally. Tsubaki’s asphalt chain was built to offer critical benefits such as tight press fit, increase strength, precise pitch control, and longer service life.

    We can supply incline conveyor asphalt chains with 4 inch or 6 inch pitch and with K-style or slotted M-style attachments. To provide maximum strength and longevity, sidebars are through-hardened to withstand high impact loads and rollers are especially heat treated to resist abrasion.

    Using the right chain is only the first step

    Tsubaki of Canada is the manufacturer to trust in the fabrication of asphalt incline conveyor sprockets and related parts. To construct our sprockets, we utilize finest materials, heat treatment, design, and manufacturing processes. Tsubaki’s unified sprockets enable easy replacement of worn portion. Segmental rim style sprockets are available and made from high quality 1045 steel with minimum 50 HRC tooth hardness to withstand extreme abrasion. The hub body is a solid construction to ensure strength in operation. It’s easily mountable to stand shafting and is available in split style for easy replacement. Our return support rollers support the weight of the chain on the conveyor return side with rollers machined to the chain’s exact profile. We also provide scraper flights fabricated and assembled at our factory.

    To eliminate guesswork associated with worn sprockets, add Smart Tooth to your asphalt sprockets. Tsubaki Smart Tooth helps extend chain life through predictable maintenance. Strategic placement of our patented Wear Indicator pins on one or more sprocket teeth provides visual indication that a sprocket is within the allowable wear tolerance, or that it needs to be replaced.

    To complete the solution provided by Tsubaki, we offer our pre-fabricated one-touch steel doors that seal out dust and rain but permit inspections by simply lifting the handle with no bolts to loosen or cover to misplace. In addition, to prevent damage to machinery and other expensive equipment, we offerback stop cam clutch that helps prevent reverse rotation of drive shaft. With the outer race of the clutch anchored stationary, the inner race can overrun freely in one direction of rotation. Reverse rotation is instantaneously prevented by the automatic engagement of the clutch.

    For any asphalt needs, trust Tsubaki!


  • Cost Savings

    Sawmill 90-degree conveyor

    Application:

    A transfer conveyor conveying rough cut lumber on a 90⁰ angle.

      

    Issue:

    This customer was using a standard Tsubaki 80 curved chain, however, was experiencing premature elongation due to lack of lubrication and over-tensioning. Worn sprockets were further interfering with optimal performance.

    Tsubaki Solution:

    Replaced standard 80 curved chain with size 80 Lambda curved chain. Lambda chain is a self-lubricating chain that’s using oil-impregnated sintered bushings to keep pin-bushing engaged area lubricated. Lambda can last up to 14 times the wear elongation life than that of non-lubricated ANSI standard roller chain and is ideal for applications where manual lubrication can be tricky. We also recommended the customer to replace worn sprockets with new Tsubaki sprockets. Replacing worn sprockets in a timely manner is essential to avoid expensive downtime due to performance failure. When sprockets are not changed together with the chain it can lead to as much as 25% reduction in chain life for each additional installation on the same sprocket.

    Cost Savings:

    The previous chain the customer was using lasted for 2 years. When the chain was replaced with Lambda and the old sprockets were changed out for new ones, the life of the chain increased to 6.5 years and counting. After adopting Tsubaki’s solution, this customer benefited from prolonged wear life, maximized chain performance, and cost savings of $52,733.14 and counting.  


  • Tech Time

    How to Minimize Mechanical Wear on Chains?

    Chain wear happens due to pins and bushings rubbing against each other every time the chain links engage and rotate with the sprocket. Over time, this chain and sprocket interaction reduces the pin’s outer diameter and increases the bushing’s inner diameter. Eventually, causing the relative pitch of the chain to increase and resulting into chain elongation.

    To minimize wear, here are some important tips:

    • Ensure that every chain is the right size for its application. If a chain is sized, installed, and maintained properly, you should get about 15,000 operating hours before it reaches elongation limit.
    • Ensure that sprocket faces are aligned, and shafts are parallel.
    • Maintain sufficient slack on the chain’s non-tension side.
    • Clean the chain often to allow lubrication to get into the pin-bushing bearing area.
    • Lubricate the chain with suitable oil. Rely on the horsepower rating and Tsubaki’s recommended viscosity tables to choose the right oil.

    Proper lubrication is vital to prolonging chain life. Applications where manual lubrication is not feasible, try Tsubaki’s Lambda self-lubricating chain. Lambda uses oil-impregnated sintered metal bushings to keep pin-bushing bearing area lubricated. Lambda lasts 7 to 14 times longer than non-lubricated chains.

    With proper care and maintenance, users can extend the life of Tsubaki chains to the maximum possible.


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Tsubaki Canada - Newsletter - Issue 32: Scan & Plan

On the Move - News

  • Tsubaki Advantage

    Scan & Plan

    Tsubaki products save money, it’s a proven fact through Tsubaki Advantage and Scan & Plan.

    Designed to document cost savings, Tsubaki Advantage is a database that compares and tracks the performance of previously used products to that of a Tsubaki product in a specific application. Cost savings are calculated considering numerous factors for accuracy, such as replacement costs, maintenance costs, and cost of downtime. 
     
    Did you know, as of September 17th, 2018, Tsubaki products have helped our customers save $4,161,300.00 CAD in cost savings? 
     

    Scan & Plan

    Tsubaki Advantage and Scan & Plan go hand in hand. While Tsubaki Advantage records performance data, Scan & Plan lets our customers gain instant access to their application information. Within seconds, they can view key information by scanning their application-specific QR code. This includes:

    • Distributor & distributor contact name
    • Product part number & description
    • Quantity
    • Anticipated replacement date
    • Cost savings ROI date 
    • Photo gallery
    • Request a technical support service call, quote, or Tsubaki representative

    How can you sign up for Scan & Plan? It’s easy! Contact your Tsubaki representative to get access to your new QR code. Place the QR code label on a visible spot on the application and scan the code to get information.  Tsubaki understands how valuable your time is — use this tool to stay proactive and prevent costly downtime. 


  • Cost Savings

    Cam Clutch

    Tsubaki incorporates years of engineering expertise to deliver innovative cam clutch solutions.

    Tsubaki engineers have spent thousands of hours strategically designing our clutches to ensure efficiency and reliability, even in the most challenging environments. All our cam clutches employ the same concept — transmit torque in one direction and overrun (freewheel) in the opposite direction to their rotation. Tsubaki offers a wide range of solutions for different applications requiring cam clutches. Three of the most common applications types are backstop, indexing, & overrunning applications. 

    Cross-section diagram of cam clutch

    Backstop

    In these applications, backstop cam clutches play an integral part in preventing reverse rotation of drive shafts. The clutch’s outer race stays stationary, while the inner race can overrun freely in one direction. Reverse rotation is prevented through automatic clutch engagement, which ultimately prevents damage from occurring on expensive equipment. Common backstop applications are in conveyor systems and gear reducers. 

    Indexing

    In these applications, a crank motion mechanism provides reciprocating motion to the clutch’s driving race. This is transformed into one-directional motion, due to clutch driving in the forward stock (index) and overrunning on the return stroke.  

    Overrunning

    In these applications, clutches overrun at either inner or outer race during most of the operating time, but are intermittently required to lock up and drive. Normally, an overrunning application is a 2- speed drive, with an electric and gear motor that is connected to a single shaft. As the gear motor drives on low speed, the clutch engages, while the clutch overruns as the high-speed electric motor drives. The clutch efficiently switches automatically between the 2 speeds. 

    Cam Clutch Interchange Tool 

    Tsubaki is committed to providing an exceptional customer experience. Our innovative interchange tool lets you input competitor product information to instantly find the Tsubaki product equivalent, saving you time & hassle. 

    Cam clutch interchange tool on Tsubaki website screeshot


  • Tech Time

    Custom Sprocket Capabilities

    Engineering Capabilities

    Smart tooth sprocket from TsubakiTsubaki uses customer application data in combination with engineering expertise to deliver customized engineering solutions. Tsubaki CAD system translates customer input, while custom design assessment determines drive system and performance needs. Sprockets can be customized to fit exact customer needs. Tsubaki engineers are available every step of the way – from addressing technical needs to application visits. 

    Smart tooth reflects our capabilities - innovative & effective.

    Smart tooth sprockets utilize Tsubaki’s Patented Wear Indicator Technology that visually informs customers when it is time to replace the sprocket prior toa failure occurring. It delivers extended chain life through predictable maintenance and provides an opportunity to schedule maintenance based on sprocket wear rate. Ultimately, avoiding unplanned downtime and reducing the overall cost of equipment ownership. 

    Machining Capabilities

    From one-piece custom orders to high-volume production, Tsubaki works hard to keep you on track. Tsubaki facilities are heavily equipped to create sprocket solutions to fit a wide range of needs. We have equipment with a large number of capabilities, including milling, turning, hobbing, welding, assembly and waterjet. For example, our waterjet machine has a 120” x 120” bed size and is capable of slicing through almost any type of material! 

    Man using a waterjet machine to custom manufacture a sprocket

    Some of our machine features include:

    • CNC/manual turning to 99” diameter
    • Three-axis machining, 110” by 40” by 36” 
    • SMAW/GMAW welding is CWB certified to 47.1
    • Traditional hobbing to 60” diameter
    • Induction and flame hardening to 120” diameter 

    Delivery & Quality  

    Tsubaki is committed to exceptional delivery without compromising our high-quality standards. Quality inspectors perform audits to ensure every sprocket manufactured holds up to our strict standards and correct specifications. Our IQS quality management system enables us to maintain and track orders, ensuring the highest quality standards are maintained from start to finish. Our quality and engineering team is continually focused on improving all manufacturing process — such as improving production flow, reducing waste to reduce the cost for customers, and reducing process variation. Our engineers are available by phone or in person, before or after your purchase to ensure customer satisfaction. 

    Man standing with Tsubaki sprocket to test for quality


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Tsubaki Canada - Newsletter - Issue 31: Tsubaki Chain Configurator

On the Move - News

  • Tsubaki Advantage

    Tsubaki Chain Configurator Is Now Live On Tsubaki.ca

    Tsubaki Attachment Chain Configurator Tool
    Introducing Tsubaki Attachment Chain Configurator – our new, innovative configuration tool specifically designed to increase your convenience, enhance your customer experience & ensure proper communication when interacting with us. 
     
    Our configurator is easy to use, highly intuitive & allows you to build your attachment chain to match your exact application requirements from the comfort of your own screen. Once your design is created, it can be directly submitted to our dedicated sales team for a quote request.  
     


  • Cost Savings

    Super Stainless Chain – Stainless Steel with Carbon Strength

    Super stainless chain partsWith the combination of corrosion resistance of 600 (AS) series chains with the strength of an ANSI carbon steel chain, Super Stainless chain is engineered to be the toughest chain for the toughest applications. Designed to deliver maximum strength in corrosive, high temperatures or food grade environments, Super Stainless chain can reduce cost by operating the same loads as one carbon steel chain.
     

    Advantages of Stainless Steel

    • Withstand harsh chemicals, high temperatures, and high moisture levels, making it ideal for food-safe and clean room environments.
    • Outlasts competition to promote cost-effective operations and increased profitability.
    • Hardened components support increased strength and wear life.
    • Ideal for various applications such as freezers, food packaging/processing, underwater applications, exposure to harsh cleaners, high-speed conveyors, and high-temperature ovens. 

    Construction

    • High side-bar waist for greater fatigue strength.
    • Hardened stainless components for longer wear life and improved performance.

    Features

    • One Number 50 Super Stainless chain with the same maximum allowable load as one equivalent 50 carbon steel chain (1,430 lbs. max. allowable load).
    • Greater strength in a single stainless chain results in big cost savings. One Super Stainless chain equals the load capacity of a larger or multi-strand 600(AS) or 304 (SS) stainless chain.
    • Twice the wear life of existing stainless steel chain options. Decreases downtime by extending replacement time. Reduces maintenance and replacement costs. Ultimately, improving reliability in harsh, challenging environments.
    • Highest-strength roller chain solution for high temperatures and resists a wide range of corrosive conditions, such as general acids, peracetic acids, low dosage caustics and alkalis, tap water, salt water, and temperatures from -40 degrees to 400 degrees Celsius.   

    For more information, please contact your local Tsubaki representative at 905-676-0400 or visit http://www.tsubaki.ca.


  • Tech Time

    Super Stainless Sprockets & Attachments

    Super Stainless chain sprocketsA smooth, continuously running operation needs trustworthy parts to rely on. Pair Super Stainless chain with Super Stainless sprockets and attachments to build a reliable stainless steel system, strong enough to withstand extreme operating conditions while providing superior wear
    life. 
     

    Sprockets

    Super Stainless steel sprockets function in most corrosive environments. They have a fully through-hardened construction with hardened teeth. The mechanized process achieves a smooth surface, avoiding pits and marks. This makes them ideal for food applications where preventing food and bacteria from gathering is essential. All standard-style sprockets can be custom designed in tooth count and dimension to fit specific applications.

    Attachments

    Super stainless steel attachments have a strength that is equivalent to Tsubaki premium carbon steel attachment roller chain. Standard attachments accommodate most common applications and can be customized to your application using our innovative LASER-EXPRESS™ process. Additional options include double-pith conveyor chain, double-pitch sprockets & offset links.

    For more information, please contact your local Tsubaki representative at 905-676-0400 or visit http://www.tsubaki.ca.


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Tsubaki Canada - Newsletter - Issue 30: Super Stainless Steel Chain

On the Move - News

  • Tsubaki Advantage

    Introducing Tsubaki’s Super Stainless Steel Chain

    As a result of a century of engineering experience, Tsubaki introduces a revolutionary breakthrough in stainless steel products – Super Stainless Chain. With the corrosion resistance of stainless steel coupled with the strength of carbon steel, the Super Stainless series is readily equipped to handle even the toughest of applications. Strength that is six times that of conventional 304 stainless steel, unmatched wear life, and construction made to deter corrosion all contribute to making super stainless truly in a league of its own. 
     
    To find out more about our unparalleled Super Stainless chain, please contact your local Tsubaki representative at 905-676-0400.
     
    Super Stainless Chain from Tsubaki Canada


  • Cost Savings

    Workhorse Elevator Chains – Made Strong for Tough Environments

      
    Workhose Elevator Chain from Tsubaki CanadaDesigned for aggressive bulk material handling environments, Workhorse elevator chains are made of premium high strength steels and refined series of heat treatments – guaranteeing to bring superior strength, utmost durability and exceptional dependability to your Workhorse Elevator Chain from Tsubaki Canadaoperation.
     
    Ideal for fine particle environments such as cement, lime, gypsum, salt and potash; Workhorse elevator chains are born tough for tough environments. Combination of premium materials and refined proprietary manufacturing process make these chains resistant to demanding forces of aggregate elevators. Tsubaki offers a wide range of premium upgrades, such as plated pins/bushings, and patented joint seals, for your specific application that can be incorporated individually or in combination.
     
    For more information, please contact your local Tsubaki representative at 905-676-0400 or visit http://www.tsubaki.ca.


  • Tech Time

    Tsubaki Chains for Asphalt and Paving Industry

    Incline Conveyor Chain for Asphalt and Paving Industry from Tsubaki Canada
     
    Asphalt is tough! The combination of hard aggregates, intense heat and the need of a continuously running operation during paving season demands tough chains to rely on. Tsubaki’s asphalt chains have superior quality, increased strength and longer service life. They deliver reliable performance even with high shock loads to decrease downtime and unplanned stops. 

    Incline Conveyor Chains 

    Tsubaki offers Incline Conveyor Chains in 4” and 6” pitch with K- or slotted M- style attachments that are designed for maximum strength and longevity. Side bars are hardened to withstand high impact loads and rollers are heat treated to resist inherent abrasion for a smooth running operation. 
     
    Different styles of incline conveyor chains from Tsubaki Canada
     
    For more information, please contact your local Tsubaki representative at 905-676-0400 or visit http://www.tsubaki.ca.


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Tsubaki Canada - Newsletter - Issue 29: History of Tsubaki

On the Move - News

  • Tsubaki Advantage

    VIDEO: Where It All Began


  • Cost Savings

    Bushings for Sprockets

    Tsubaki manufactures various types and sizes of chains, sprockets, and power utility components that are engineered perfectly to support your unique operations; putting your needs first. Along with our other exceptional products, we offer a wide selection of bushings and weld on hubs options to pair with their respective bushings for sprockets and pulleys. 
     
    What are bushings? Bushings are optional components that mount a sprocket to a shaft, usually transmitting more torque in comparison to a simple Finished Bore with keyway. Sprockets can be bored to suit a specific bushing model, wherein bushing can have various bores – this design allows for sourcing simplification. All bushings come in steel, stainless steel, and other materials. Types of bushings we offer include:
     
    • Quick Detachable (QD) Bushing
    • Taper Lock (TL) Bushing
    • Split Taper Lock (ST) Bushing

    Quick Detachable (QD) Bushing 

    Quick Detachable (QD) bushing for mounting a sprocket from Tsubaki

    QD bushings are easy to install and remove from applications. They offer superior clamp force due to split running through the flange and the barrel. They require large bolts around the circumference of the flange to retain themselves to the sprocket. The barrel is tapered at ¾”  per ft and align the sprocket 90 degrees to the drive shaft to ensure proper alignment for smoother running operation. QD bushing sizes from smallest to largest are JA,SH,SDS,SD,SK,SF,E,F,J,M,N,P & W. They can be reversed mounted through size J.  

    Taper Lock (TL) Bushing 

    Taper Lock (TL) bushing for mounting sprocket to shaft from Tsubaki

    Similar to QD, TL comes with a split-through taper and flange to provide a strong clamp force to the shaft. A series of set screws on the outside diameter of the bushing are used to retain the bushing to the sprocket, however, screws are not required over the drive shaft key. The barrel is tapered at 1.686” and cannot be reverse mounted. TL bushing sizes from smallest to largest are 1008, 1108,1210,1215,1310,...8065. 

    Split Taper Lock (ST) Bushings

    Split Taper Lock (ST) bushing for mounting sprocket to shaft from Tsubaki

    For ST, the barrel is tapered 0.75” per foot and comes with a double split on barrel only. A series of screw holes around the flange allow the bushing to retain itself to the sprocket. ST bushing sizes from smallest to largest are H, P, Q, R, S, U, W. Each size comes with type 1 and type 2 options. 

    For more information on bushings, please contact your local Tsubaki representative at 905-676-0400. 


  • Tech Time

    Varitrak S/SX Series – Made Strong for Harsh Environments

    S/SX Series steel cable carriers from Tsubaki
    The S/SX Series is an extremely stable and robust series of steel cable carriers, capable of carrying heavy loads and withstanding harsh environments.  
     
    It demonstrates high stability, due to a unique chain link sandwich design, consisting of two plates welded together. Optimal link design allows contaminants found in harsh environments to fall through without building up for a continuously running operation. This design allows for extended unsupported lengths and high additional loads without sagging when perfectly sized to the application.
     
    A stroke system with special bolts and locking rings extends service life. Dividers made from plastic or steel along with other dividing options maintains neat cable separation. Covers with the aluminium cover system or steel strip are available for further aid in cable protection. Choose from galvanized finish or stainless steel construction and a wide variety of dimensions to find the right fit for your operations.
     
    Features available for S/SX Series steel cable carrier from Tsubaki
     
    For more information on S/SX Series, please contact your KabelSchlepp factory representative at 1-800-443-4216.


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Tsubaki Canada - Newsletter - Issue 28: Energy Series

On the Move - News

  • Tsubaki Advantage

    Energy Series For Cold Harsh Environments

    Energy Series Tsubaki Chain for Cold Harsh Environments
    Tsubaki’s Energy Series Chain, made at our Holyoke, Massachusetts facility, is manufactured using the optimal combination of materials to allow it to work efficiently in cold temperature applications. This includes down to -40 degrees Celsius (-40 degrees Fahrenheit)!
     

    Features: 

    • Built from highest quality steel, all parts are made to uphold specific tolerances and put under heat-treatment processes to maximize tensile strength and maintain shock load resistance. 
    • Through-hardened pins, created from special material in combination with proprietary heat-treatment, increase fatigue strength, chain life, and uphold shock loads. 
    • All chains are pre-pressed for even load distribution, to decrease initial elongation, and to aid in a smooth operation. 
    • Ballized holes for tighter tolerance, smooth hole surfaces, and maximize fatigue strength. 
    • Wider waist on plates increase fatigue life and maximize shock load tolerance, while, shot- peened link plated further aid fatigue resistance. 
    • Chain is dipped into our hot lubricant that penetrates deeply to help extend chain life. 
     
    Additionally, Energy Series Chain comes with free cut-to-length service, saving you time, labour costs, and available for easy drop-in installation.   
     
    For more information, please contact your local Tsubaki representative at 905-676-0400.


  • Cost Savings

    Energy Series Sprockets

    Energy Series Sprocket from Tsubaki CanadaAt Tsubaki, we understand the oilfield industry. Our Energy Series sprockets are manufactured with precision to match industry standards and the high quality of our Energy Series chains. Trust Tsubaki to pair your Energy Series chains with Energy Series sprockets for maximized performance, longer life, and greater long –term savings.
     
    Our extensive years of experience within the industry have lead to the development of some key specifications that add value and reliability to your operations.
     

    Features: 

    • Example of tooth wear indicator on a Tsubaki sprocket

      Sprocket tooth wear indicators allow you to schedule maintenance, preventing downtime due to wear before it happens. 
    • Flame hardening process gives an optimal combination of strength and wearability. 
    • Sprockets come with a minimum tooth hardness of 35Rc, which can be increased based on customer specifications. 
    • Sprockets are machine cut with high precision for higher quality.
    • Comes with milled serialized identification and certified documentation containing hardness and depth certification.
    • Solidworks model provided after order stage and coupon testing provided upon request. 

     

    Material and hardness specifications are critical to high performance in your application. Tsubaki’s standard is high carbon steel, here are some other options to consider: 
     
    Table showing features of high carbon steel vs. alloy steel sprockets
     
    For more information on Energy Series Sprockets, please contact your local Tsubaki representative at 905-676-0400.


  • Tech Time

    Extended Travel Support Systems – An Overview

    Kabelschlepp understands your application needs for extended travel and offers top-of-the-line solutions that support your operation to maximize efficiency. 

    KabelSkate 

    Kabelskate polymer cable carrier systems from Kabelschlepp The patented KabelSkate is cost effective and specifically designed for polymer carrier systems. With travel capability up to 500 meters, KabelSkate doesn’t require a costly guide channel and embodies self-alignment capabilities of cable and hose carrier system. It has a simple construction, requires a minimal number of components, and only needs a flat, smooth surface outside of any traffic to run on. It is light-weight due to reduced motor size and has significantly reduced frictional factor, making it easy to move without the use of extra machinery. 

    DynaGlide 

    Dynaglide steel cable carrier system from Kabelschlepp Canada DynaGlide should only be used when an application calls for steel cable carrier systems, for extended travel, exceeding unsupported length more than 4x. It uses the same basic configuration as an extended travel polymer gliding in the guide channel, however, it has greater push-pull force, making it more expensive than similar systems from Kabelschlepp. It can be used in single-sided or opposing 2-sided cable carrier arrangement. 

    RollerGlide 

    RollerGlide cable carrier system from Kabelschlepp Canada RollerGlide, used with steel or polymer carrier systems, can operate in challenging environments requiring lower towing forces and higher load capabilities. This includes environments such as, but not limited to: steel mills, sewage composting facilities, and metal foundries. It utilizes low friction cam follower rollers, with shielded bearings, that glide on steel rail. This system is safely and accurately guided by two parallel rails that serve as a strong base to endure extremely heavy loads and high speeds.

    Rolling Carriage Systems 

    Rolling carriage system for cable carriers from Kabelschlepp Canada Rolling carriage systems can be used with Steel and Nylon Polymer cable carrier systems. Ideally designed for extended travel, high-speed applications for over 1 meter per second or when load and operating travel length exceeds 4x the unsupported length of the carrier. 

     
    For more information on extended travel support systems, please contact your KabelSchlepp factory representative at 1-800-443-4216.


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Tsubaki Canada - Newsletter - Issue 27: Auto Parts

On the Move - News

  • Tsubaki Advantage

    Automotive Parts


  • Cost Savings

    4 Reasons to Use Tsubaki Advantage

    • Lets your Tsubaki representative easily access key information about your application on the Tsubaki Advantage Database. 
    • Maintenance is easy with Tsubaki components. Your Tsubaki representative will contact you when it is time to service your Tsubaki components, preventing costly downtime before it strikes. 
    • Compare and track the performance of previously used products to that of Tsubaki products on your application. See just how well your applications are doing by switching to Tsubaki products. 
    • Track cost savings from using Tsubaki products by comparing all aspects of the applications. This includes, but is not limited to, cost of downtime, replacement costs, and maintenance costs. 
    For more information on how Tsubaki Advantage can benefit you, please contact your local Tsubaki Representative. 


  • Tech Time

    Importance of Strain Relief & Types To Choose From

    Strain relief types for cable carriers from Tsubaki Canada
    Strain relief is a simple, easy to install, and an inexpensive solution that will improve the life of cable carrier systems significantly. 
          
    How does it work? It secures cables/ hoses at each end of the carrier, while the carrier moves back and forth. As the carrier moves, cable is pulled into and out of it. This can expose the cable to possible damages caused by binding up or being torn from the connection point. These end brackets will absorb all mechanical force resulting from the movement. Strain relief can be attached to moving end of the cable, however; it is strongly advised to secure both ends of the cable with it.
     
    Overall, strain relief is a cost-effective addition that delivers big benefits. It makes it easier to control cable length, helps in executing a smoother operation, and can increase system performance and longevity.
     
     
    Strain relief device type 1 from Tsubaki CanadaStrain relief device type 2 from Tsubaki CanadaStrain relief device type 3 from Tsubaki Canada


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Tsubaki Canada - Newsletter - Issue 26: Power Transmission

On the Move - News

  • Tsubaki Advantage

    VIDEO: Power Transmission Products


  • Cost Savings

    Introducing STAGE-1: Industrial Dryer/Dehydrator Chain

    Introducing STAGE-1, our newest class of premium industrial dryer/dehydrator chain. Specifically designed for demanding applications, STAGE-1 can withstand a working load over 42% greater than the industry standard. STAGE 1 is uniquely designed to adopt best practice chain design features to ensure high performance, reliability, and predictability. 

    Premium Features: 

     
    STAGE-1 industrial dryer/dehydrator chain has multiple premium features to offer. To begin with, there is a 900LB working load improvement, due to maximizing bearing area. Bushing has increased diameter, thicker walls, and fully round shape to increase strength. The chain features the tallest, thickest side plates achievable without compromising operating envelope standards. Pin and cotter diameters have been increased. Chain attachments are welded to the chain using MIG welding to ensure premium results. All these features combined make STAGE-1 the most durable and toughest dryer/ dehydrator chain on the market.
     
    STAGE-1 chain is available in 6”, 9” and 12” pitch sizes and custom sizes depending on the varying needs of our clients. It is designed for easy drop-in replacements and will work efficiently within the original operating envelope without additional equipment modifications.
    Side by side comparison of Tsubaki STAGE-1 Dryer Chain and Standard Dryer Chain
     
    For more information, please contact your local Tsubaki Representative


  • Tech Time

    Tsubaki's Solutions to Harsh Environments

    With demanding conditions present in every industry, rely on Tsubaki’s innovative products to keep your operations working optimally.

    Smart Tooth

     
    Tsubaki SmartTooth sprocket technology
    Smart Tooth is designed to extend chain life through predictable maintenance and warnings to avoid drive failure.
     
    Smart Tooth technology provides visual identification of sprocket ware before component failure occurs, thus resulting in reduced equipment downtime and, ultimately, increased productivity.
     
    Like all Tsubaki products, your Smart Tooth is manufactured using premium materials and will function efficiently to meet your operational needs. Machinery downtime is simply unacceptable and Smart Tooth works hard to help prevent it.

    One Touch Inspection Doors 

     
    Tsubaki one touch inspection doors
    One touch inspection doors are lockable, dust and moisture tight. They are specifically designed for industrial conveyor enclosures and material processing & handling equipment.
     
    One touch inspection doors are quick and easy to install on existing equipment without structural changes, thus saving you time and money. It has three-part, patented design created for challenging environments, whether indoors or outdoors.
     
    The framework is made of superior quality mild steel or stainless steel for increased longevity and durability. It is available with polyethylene, epichlorohydrin, and silicon gaskets. 

    Backstops & Overrunning Clutches

     
    Tsubaki backstop and overrunning clutch
    Tsubaki offers a wide selection of cost-effective, one-way cam clutches that are designed to improve efficiency and provide protection for your valuable operation.
     
    Whether your application requires indexing, general overrunning, or backstopping units, Tsubaki has the right solution for you. Tsubaki’s cam clutches build reliability in your operation by preventing potential product and capital equipment damages. These products can be used in conveyor, bucket elevator, hoist, pumping, and dual-drive systems. 
     
    For more information, please contact your local Tsubaki Representative  


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Tsubaki Canada - Newsletter - Issue 25: G8 Series Chain

On the Move - News

  • Tsubaki Advantage

    G8 Series

    G8 Standard Roller ChainJust in time for our 100th anniversary, we are proud to announce our newest line-up, G8 Series, also known as Generation 8 series. We have upgraded our entire drive chain series including standard Roller Chain, Neptune Chain, Lambda Chain, and Heavy Duty Drive Chain.
     
    The primary concept behind our G8 series is “one hundred years of fundamental technology” representing 100 years of excellence in performance, quality, and innovation. It is our 8th model upgrade that exhibits more improvements and higher performance.
     

    G8 Standard Roller Chain 

     
    Tsubaki has invested its resources in developing an in-house lubricant, GS Lube, which is applied to our chains. The pre-lube is designed with optimal ingredients that enable increased wear life of 20% compared to its predecessor.
     
    This lubrication was developed in response to our customers' request for a less tacky solution. Thanks to Tsubaki’s ability to provide innovative lubrication, we were able to solve our customers’ problems and design a less tacky lubricant with improved handleability. This new lubricant will make the chain replacement process much easier. 
     
    The G8 Roller Chains still need to be lubricated, however, our pre-lube will increase the wear life by 20% until the first time the chain is lubricated. The pre-lube will work optimally within the temperature range of -10 to 60⁰ C.


  • Cost Savings

    G8 Neptune Chain

    G8 Neptune Series Chain - Tsubaki Canada
    Neptune Chain provides superior corrosion and chemical resistance. It is safe and eco-friendly as no harmful substances are used on Neptune’s surface treatments. These chains have the same tensile strength and allowable load as our standard roller chains, due to the implementation of a uniquely formulated treatment process. 
     

    New Features of Neptune Chain

    Neptune delivers improved protection with 700 hours of corrosion resistance and 2000 hours of chemical resistance. Although the majority of our customers were happy with the previous levels of corrosion resistance provided by the Neptune series, there were a few cases of premature corrosion when exposed to chemicals. Tsubaki’s solution was to develop a 2-layer combination, which included a uniquely designed special coating and a resin coating. Neptune will function optimally within the temperature range of -10 to +150⁰ C. However, lubrication is required when exposed to high temperatures above +60⁰ C. 

     

    G8 Lambda Chain

    G8 Lambda Series chain
    Lambda Chain is lube free, eco- friendly, and long lasting. Lambda does not need to be lubricated because it utilizes special oil-impregnated bushes. Consequently, there is less maintenance time required, lower chain replacement costs, and higher equipment reliability. Additionally, you will have equipment that is more clean and a clean working environment where your production activities can operate efficiently.
     

    New Features of Lambda Chain 

     
    Wear life is doubled through the use of improved sintering materials, optimal sintering density, and controlled production. This is due to enhanced oil-impregnated sintered bush materials that are made in-house to ensure quality and strength. Sintered bushes now use a superior NSF-H1 standards certified food grade oil. This ensures that chains are safe to be used on food equipment while providing a better wear performance. Lambda is compatible with standard roller chain and standard sprockets to ensure smooth transition. It will work optimally within the temperature range of -10 to 150⁰ C.
     


  • Tech Time

    G8 Tsubaki Heavy Duty Drive Chain

    G8 Heavy Duty Drive is exactly like how it sounds: stronger and long-lasting. Heavy Duty Drive Chain has higher minimum tensile strength and maximum allowable load compared to our standard Roller Chain. Within the G8 Heavy series, you can choose from HT Chain, Super Chain, Super-H Chain, and Ultra Super Chain.  With different models to choose from, you are sure to find the perfect chain that fits your application needs. 
     

    New Features of Heavy Duty Series Chains

     
    G8 Heavy Duty Series Chain - HT Chain, Super Chain, Super-H ChainHT Chain offers double the wear life through the use of our newly developed solid bush, optimal steel, and heat treatment methods. It has better handleability, due to the optional use of ring coined slip-fit connecting links.
     
    Super Chain has 5-10% higher maximum allowable load and the same fatigue strength as before. This is due to changes in Tsubaki’s design engineering and manufacturing prowess. Changes were made to the plates, pins, interference area, and assembly process. The plates were changed to increase rigidity and shot peening provided added residual compressive stress. Pins use quad-stake riveting to reduce the chances of a fracture occurring from pins coming out. Hardened, high-strength steel pins have increased impact resistance. Additionally, high proof-loading has reduced assembly distortion by a significant amount. 
     
    Super-H Chain has 20% higher maximum allowable load than previous Super H-chain, through the use of ring coining around inner plate holes to increase fatigue strength. One strand has the same fatigue strength as a double strand roller chain.
     
    Despite the upgraded features, the prices and delivery time will remain the same. Try our robust G8 Heavy Duty Drive chains and start saving money without compromising on quality and performance.


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Tsubaki Canada - Newsletter - Issue 24: Generation 8 Series Chain

On the Move - News

  • Tsubaki Advantage

    Tsubaki Announces the Eighth Generation of Drive Chain 100th Anniversary Series

    Generation 8 Series Chain from Tsubaki CanadaAs a result of a century of engineering experience, Tsubaki launched its newest innovation – the Eighth Generation of Drive Chain Series. Tsubaki focuses on research and development in new technology and products to respond to ever-increasing industry demand.
     

    The Series

    • G8 Roller Chain – Offers 20% increased wear life than our G7 Series. The G8 chain offers anti-rust lubrication, our one-of-a-kind solid lube groove bushings and patented ring-coining connecting links.
    • G8 Neptune Series Chain – Uses a new surface treatment structure that combines Tsubaki’s uniquely developed special coating and special resin coating for superb corrosion (rust) and chemical resistance.
    • G8 Lambda Series Chain – New bushing technique was developed using new materials, density, and oil types. Tsubaki G8 Lambda Chain now uses NSF-H1 food grade lubricant. These new techniques give this chain double the wear life of the previous model and is now suitable for use with food equipment.
    • G8 Heavy Duty Series Chain – The goal is to find ways to improve the fatigue strength without changing the dimensional properties of the chain.
      • Super Roller Chain - 5 to 10% higher maximum allowable load (MAL) than previous series or 40% greater MAL than standard Tsubaki roller chain.
      • Super-H Series Chain – 20% higher maximum allowable load (MAL) than previous series or 60% greater MAL than standard Tsubaki roller chain.
      • HT Roller Chain – Twice the wear life of the previous series; slip-fit connecting link and solid bushings were introduced to this series.


  • Cost Savings

    Chain Inspection: Highly Corroded Feeder Breaker

    Observation:

     
    Corrosion shows on chain plate used in a salt-moving applicationThis is competitor’s 3.5” feeder breaker chain sample that was sent to our Technical Support Team for failure analysis. Tsubaki provided a thorough analysis and made appropriate solutions backed by a century of experience. The chain was observed to be highly corroded with apparent pitting and layer of fully-formed rust penetrating all parts.
     
    One plate seemed to have rotated around a bushing and experienced a tensile fracture at the bushing hole. The sample chain was fitted with flight attachments and was used to move salt.
     
    Unprotected service and contact with salt seemed to have accelerated corrosive wear and significantly deteriorated the surface of all the chain parts. The amount of corrosion present would have weakened the chain.
     

    Tsubaki Solution:

     
    Tsubaki recommended 3.5” feeder breaker with flight attachments and UWP corrosion resistant plating to reduce the rate of corrosion. Shock relay was also recommended, in order to prevent future part failures during an overload occurrence.
     
    For any technical issues, contact the trusted name backed with a century of experience, Tsubaki!


  • Tech Time

    Tsubaki Introduces the Website for their Newly Acquired Company, Diasaw

    Screenshot of the new Diasaw website homepage
     
    Tsubaki has launched a new website for its recently purchased company, Diasaw, located in Maple Ridge, British Columbia. Tsubaki of Canada strategized the purchase of this sprocket and related drive components company to better serve Western Canada and Northwestern Pacific USA, by providing shorter lead time and faster delivery. Diasaw is known for manufacturing quality products at a competitive price while providing the utmost customer service. The acquisition expands the breadth and depth of Diasaw's product offering backed by the Tsubaki brand. 
     

    Services

    Diasaw offers a multitude of services backed with years of experience in welding, fabrication, and machining. Diasaw has a complete welding and fabrication shop offering MIG welding, stick welding, brazing, cast iron welding, plasma and gas cutting, and custom fabrication services.

    Diasaw also offers machining services including turning to 34” diameter, slotting up to 12” length-through-bore, keyseating, milling, drilling and tapping. Access to tooth cutting as well as profile cutting is available. Diasaw’s experienced machinists have the expertise to produce precise parts at close tolerances.
     

    Products

     
    Diasaw’s product line-up has been expanded to offer a complete package:
     
    • Drive Systems – G8 Series Roller Chain, Corrosion Resistant Chains, Lambda Series Chain, Super Series Chains, Titan Series Chain and Roller Chain Sprockets
    • Transfer Conveyors – Conveyor Chain, Welded Steel Chain, 81X Chain, Mill Chain Sprockets
    • Waste Conveyors - Drag Chain Attachments, Drum Assemblies
    • Forestry Chains – including but not limited to 81X Chain, Drop Sorter Chain, Sharp Top Chain and Welded Steel Chain
     
    Diasaw’s large inventory and on-site services enable custom orders and quick delivery times for the local market.


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Tsubaki Canada - Newsletter - Issue 23: Hardened Sprockets

On the Move - News

  • Tsubaki Advantage

    Tsubaki Stocked Sprockets are Now Hardened

    For Optimum Performance: Choose Tsubaki Sprockets

    Tsubaki Sprockets are the perfect complement to Tsubaki Chains. Ensure your application is running at its best with Tsubaki premium sprockets.
     
    All Tsubaki stock sprockets come with Hardened Teeth to RC35-50 standards, providing the most out of your sprockets while extending the life of your chain.
     

    Advantages of Hardened Teeth

     

    • Extends chain life up to 50%
    • Offers up to twice the wear life
    • Can be used in abrasive conditions
    • Absorbs high shock loads
    • Saves downtime and replacement costs
    • Can be used in heavy loaded applications
    • Ideal for high speeds

     

    Hardened Tooth Sprockets from Tsubaki Canada
    Choosing the right sprocket for your chain is critical to the life of your applications.
     
    All Tsubaki sprockets are made from 1045 cold rolled carbon steel giving you the strength and workability that powdered metal cannot.
     
    • Powdered metal sprockets cannot be hardened and therefore, wear prematurely.
    • Powdered metal sprockets short life span results in frequent replacement and downtime.
    • Powdered metal sprockets cannot be welded and will result in cracking when attempted.

     

    Most customers are not aware that there is a choice between soft and hardened tooth sprockets. This results in inferior products being purchased with an increased rate of replacement. Unlike many competitors’ sprockets, all Tsubaki stock sprockets come hardened as a standard, ensuring you the highest quality sprockets are interacting with the highest quality chain, keeping your application running stronger longer.


  • Cost Savings

    Stone Elevator Sprocket with Wear Indicator

    ISSUE:

     
    An emerging global supplier for lime and limestone products has had maintenance issues with sprockets on their stone elevator, 200 feet above ground. The customer was previously using a competitor’s cast, chilled rim 132C10 segmented sprocket. Maintenance was always an issue due to the location of the sprocket. Furthermore, when they had to inspect and replace the segmented sprocket, bolts had to be loosened to dismantle. This led to uneven tightening of the sprocket bolts and uneven wear patterns on the cast sprocket teeth.
     

    TSUBAKI SOLUTION:

     
    The customer decided to switch to Tsubaki’s steel boot sprocket with wear indicator for their application. Wear Indicators provide visual indication that a sprocket is still within the allowable wear tolerance, and when replacement is required. Tsubaki wear indicator technology suited this application – the customer managed to save on maintenance man-hours as well as sprocket inspection being made easier with the wear indicator technology. Visual inspection was all that’s needed – no sprocket disassembly required.
     

    COST SAVINGS:

     
    In terms of price, Tsubaki sprocket was 50% more than the competitor’s.  However, the life span increased by 140% saving the customer $1600 and counting.


  • Tech Time

    Tsubaki SMART TOOTH™ Sprockets

    By: Derek Glugosh
    Sprocket Product Manager
     
    This document describes Tsubaki’s patented SMART TOOTH technology features and benefits.
     
    SMART TOOTH technology is a simple visual identifier indicating when a sprocket has worn past its usable life and needs to be replaced.  Wear indicator pins are strategically inserted into the thrust faces of the sprocket tooth where the resultant pressure angle of the chain roller creates wear. Eventually as the tooth profile recedes over time in service, the wear indicator pin becomes exposed visually identifying that it is time to replace the sprocket.
     
    Wear Indictor Pin and Tooth Edge showing a sprocket with plenty of life remaining
    Figure 1: Wear indicator pin and tooth edge showing a sprocket with plenty of life remaining
     
    Tsubaki SMART TOOTH offers users the ability to identify and schedule drive system maintenance. Predictable downtime is essential to cost effective part replacement ensuring critical component failure does not occur.  Implementation of Tsubaki wear indicator technology makes sense for applications that are driven by capital equipment, or where non-scheduled downtime is simply not acceptable.
     
    Wear indicator pin and smart tooth showing a worn sprocket past its usable life
    Figure 2: Wear indicator pins and tooth edge showing a sprocket that has worn past its usable life and ready to be replaced.
     

    Tsubaki SMART TOOTH Program Details

     
    Tsubaki SMART TOOTH sprockets stand apart from all other sprockets in the industry.  One set of wear indicator pins come STANDARD on every sprocket (front & back) ensuring they are visible on any application no matter the installation.  Next, Tsubaki has included the latest laser etching technology in which Tsubaki “SMART TOOTH” will be etched directly below the wear indicator pins providing even more visibility to the end user. The etching will occur on the Hub If there is not enough room below the tooth.  Finally all Tsubaki SMART TOOTH sprockets are shipped with a special blue coating making it easy to identify which sprockets have wear indicators vs. which ones do not.
     
    Smart Tooth Sprocket with one set of wear indicator pins
    Figure 3 illustrates a SMART TOOTH sprocket with one set of wear indicator pins, painted Tsubaki blue and laser etching
     

    Chain Life:

    Rusted sprocket  - chain life
    Proper chain and sprocket engagement is essential to maximize the life of your chain.  When chains and sprockets articulate correctly, the life of the chain is extended.  This means long term savings and real value for any application. Sprockets have several points of high-friction contact with a roller chain, which is important to efficient rotation, but also wears the sprocket and roller chain quickly. Once a sprocket has worn past its usable life poor fit, alignment and chain wrap will occur resulting in loss of tension, jumped chain, drive slipping and catastrophic failure.  Ultimately by using worn sprockets chain wear accelerates at an exponential rate causing the life of the chain to be reduced by up to 50%.  
     
    Figure 4: Sprocket teeth worn past its usable life
     

    Program:

     
    ANSI Roller Chain sprockets
     
    North American sprockets adhere to ANSI code B 29.1, which regulates design, dimensions, and interchangeability within a chain drive. ANSI covers eight different strand types of sprockets: single-strand, double-strand, triple-strand, and multiple strands 4, 5, 6, 8, 10. ANSI sprockets are also designated with a preferred number description regarding tooth pitch in relation to the pitch of the chain calculated in 1/8” intervals. (Example, 40 chain would have a pitch of four-eighths of an inch, or 1/2”). SMART TOOTH wear indicator technology comes Standard on all MTO ANSI roller chain sprockets with a sell price of $1,000 or more, 80 pitch and higher and manufactured at the Tsubaki plant in Mississauga, Canada.
     
    Stainless steel sprockets are not included in the SMART TOOTH program but can be added upon request.  Stainless steel sprockets are widely utilized in food grade applications due to its non-rusting characteristics.  Wear indicator pins and laser etching will be included on these sprockets but will not be painted blue due to strict health regulations.   
     
    120-6W61 sprockets with SMART TOOTH wear indicator pins
    Figure 5: 120-6W61 sprockets with SMART TOOTH wear Indicator pins, laser etching and blue finish.
     
    MTO ANSI roller chain sprocket teeth can be hardened or non-hardened based on the application and request from the customer.  Wear indicator pins can be inserted into both soft and hardened teeth providing more flexibility to the customer.  Hardness is a characteristic of a material and defined as the resistance to indentation by measuring the permanent depth of the indentation. All Tsubaki stock sprockets are hardened to RC35-50 standard which greatly enhances both sprocket and chain life while reducing the risk of failure. 
     
    RS48-3C30 ANSI C-style sprocket with SMART TOOTH wear indicator pins
    Figure 6: RS48-3C30 ANSI C-style sprocket with SMART TOOTH Wear Indicator Pins, laser etching and blue finish
     
    SMART TOOTH technology also applies to type A, B and C plain or finished bore hubs along with Taper-Lock, Split taper, XT and QD style sprockets.  Style A sprockets are flat with no hub, Style B has a hub on one side only and Style C sprockets have hubs on both sides.
     
    QD (quick detach) style sprockets are used where higher working loads are prevalent and higher clamp loading on the drive shaft is desirable.  QD bushings are flanged utilizing large anchor bolts to retain itself to the sprocket while aligning the sprocket 90 degrees to the drive shaft assuring proper alignment.
     
    Taper-Lock sprocket bushings are similar to QD style bushings in that they both utilize a split through both the taper and flange to provide a true clamp on the shaft that is equivalent to a shrink fit.  The bushing is retained to the sprocket with a series of set screws or if desired can be welded to the sprocket itself.  The main advantage of TL sprockets is the ability to utilize multiple sized bores for a single bushing size.
     
    Engineering Class Sprockets
     
    Engineering class sprockets vary from ANSI roller chain in that they do not follow ANSI code B 29.1, regulations and will typically have custom tooth profiles.  Tsubaki SMART TOOTH is available on all engineering class sprocket sizes no matter what the tooth profile with a sell price of $1,000 or more and manufactured at the Tsubaki plant in Mississauga, Canada.
     
    Engineering class sprocket outfitted with Tsubaki SMART TOOTH technology
    Figure 7: Engineering class sprocket outfitted with Tsubaki SMART TOOTH technology
     
    There are 3 barriers which prevent users from replacing sprockets which ultimately costs end users more money over time.  
     
    Barrier 1
     
    Cost of sprockets (expensive to replace)
     
    Replacing sprockets can be expensive, specifically specialty made-to-order sprockets which can be highly technical and complex.  These sprockets may also have long manufacturing lead times which can prove detrimental when last minute replacements are necessary.    
    SMART TOOTH sprockets provide an easy visual indicator of how much sprocket life is left allowing for users to schedule maintenance downtime well in advance.  This ensures worn sprockets are not left running and last minute sprocket will no longer be necessary.  The price of sprockets are unfortunately a  cost of doing business but customers now have the advantage of planning for this expense over time no longer guessing or waiting till the last minute to replace their sprockets.
     
    Barrier 2
     
    Measuring sprocket wear.
     
    There are little-known standards for checking and measuring sprocket wear.  Few people know how to do it and most will just do a visual inspection of the sprocket teeth making an educated guess when to replace.   Others times sprockets are only changed when replacing the chain which can result in throwing away good sprockets costing large sums of wasted money over time.  
     
    Customers no longer need to guess if a sprocket should be replaced eliminating wasted money.
     
    Barrier 3
     
    Complexity of removing sprockets.
     
    Removing sprockets can be both time-consuming and complex causing long undesirable last minute downtimes.  As a result, many companies choose not to replace sprockets running their equipment long past replacement dates. When there is no indication or reminder of when to change sprockets, it is easier to ignore resulting in shorter chain life, elongation and poor fit.   
        
    Tsubaki sprocket wear indicator technology assures maximum uptime and drive system efficiency by providing visual confirmation of excessive sprocket wear.  Incorporating this patented technology into MTO ANSI and engineering class sprockets reduces overall system costs by offering predictable maintenance intervals to avoid catastrophic failure.


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Tsubaki Canada - Newsletter - Issue 22: Power Lock

On the Move - News

  • Tsubaki Advantage

    100 Years Video


  • Cost Savings

    Keyless Locking Device Offers Extreme Clamping Strength

    Tsubaki Power-Locks are well engineered, adjustable and affordable locking devices that solves many common engineering and maintenance issues associated with other connection devices, particularly keyed connections. 
     
    The process of machining a keyway into a shaft is tedious, expensive and permanent. Most importantly, it reduces the strength and amount of torque a given shaft size can transmit. In addition, in a keyed connection, clearances must exist between the component hub, shaft, keyway and key, which allows for metal-to-metal contact, resulting in fretting and corrosion.
     
    Tsubaki Power-Locks help to eliminate these issues. The frictional, keyless system allows for easy attachment of shaft to hub without time and money spent on machining or extra assembly labour. It provides a solid connection between the hub and the shaft by using a keyless mechanical interference fit to transmit a high torque or withstand axial thrust and accommodates reversing, dynamic or shock loading. In addition, it features a precision-made, double-taper design that can be easily mounted on any rotational component, allowing the hub to be positioned more accurately on the shaft, and facilitating angular timing of the hub.


  • Tech Time

    Power-Lock Selection Guide

    Tsubaki Canada's Power-Lock Selection Guide

    AS Series (Multipurpose)

    • Easy-handling and multipurpose
    • Compatible with large shafts
    • Environment resistant models in stainless steel (AS-SS Series) and electro-less nickel-plated finish (AS-KP Series) available

    AD Series (High Torque)

    • Offers 1.5 to 3 times the rated torque capacity of the AS Series
    • Self-centering
    • Designed with the same inner and outer diameters as an AS Series Power-Lock

    KE Series (Wide Range of Tolerances)

    • Designed to suit a wide range of shaft tolerances
    • Compact with only a small difference between the inner and outer diameters
    • Self-centering
    • Excellent for locking small shafts

    AE Series (Multipurpose Flange)

    • Self-centering
    • Generally the same inner and outer diameters as an AS Series Power-Lock

    RE Series Stainless Steel (Environment Resistant)

    • RE Series can be installed without snap ring
    • Offers corrosion protection
    • Available in flange and straight type

    SL Series (External Locks)

    • Installs over outer hub diameters
    • Excellent for locking hollow shafts
    • Low profile for applications with space restrictions

    EL Series (Locking Elements)

    • Offers flexible design configurations
    • Designed for applications requiring space restrictions
    • Excellent cost performance

    EF Series (Low Profile)

    • Pressure flange type locking elements
    • Offers 2 to 3 times the rated torque capacity of the EL Series
    • Self-centering

    TF Series (Small Hub Diameters)

    • Excellent for locking small hubs
    • Minimum number of bolts used
    • Self-centering

    FL Series (Flush Mounting)

    • Self-Centering Function: straight and narrow hubs can be used with FL Series Power-Lock
    • Same size inside diameter and outside diameter as AS Series Power-Lock in most cases
    • Simple construction


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Tsubaki Canada - Newsletter - Issue 21: Cam Clutch Solutions

On the Move - News

  • Tsubaki Advantage

    Cam Clutch Solutions

    Cam clutch solutions from Tsubaki Canada

    Tsubaki engineers have spent five decades designing and improving upon unidirectional and mechanical clutches to enhance their reliability and performance. The result is Tsubaki’s line of Cam Clutch solutions, complete with innovative features to ensure reliable operation in harsh environments.
     

    Backstop Cam Clutches

     
    In backstopping applications, clutches are used to prevent reverse rotation of drive shafts, which may cause damage to expensive machinery and equipment. Tsubaki pioneered the non-rollover design in its clutches, which means that even if an unexpectedly large reverse torque occurs, the clutches will not roll over. Typical backstop applications are in conveyor systems and gear reducers. 
     
    The company carries several lines of clutches designed for backstopping applications, including its BR-HT Series, BREU Series, BS/BS-HS Series, BSEU Series and TXT/CA Series.
     

    Indexing Clutches

     
    In indexing applications, reciprocating motion applied to the clutch transforms into one-direction motion. A crank mechanism on Tsubaki’s design provides reciprocating motion to drive the Cam Clutch, which then drives in the forward stroke and overruns on the return stroke, indexing the feeding roller forward.
     
    Tsubaki carries several solutions for indexing applications, including its MIUS Series, MZ Series and MZEU Series.
     

    Overrunning Clutches

     
    In overrunning applications, the clutches spin freely the majority of the time, though they are sometimes required to lock up and drive. Typical applications include a two-speed drive, where the machine is driven by either an electric motor or geared motor. When the gear motor drives at low speed, the clutch engages. At higher speeds, the clutch overruns, automatically switching between low and high speeds.
     
    The company’s portfolio of Overrunning Cam Clutches includes its BB Series, BUS 200 Series, MGUS/R Series, OB-ON/OF Series, OB-SF Series, PBUS Series, TFS Series and TSS Series.
     
    All Cam Clutch products from Tsubaki are available in a variety of  bore sizes and torque capacities for each application’s unique needs.


  • Cost Savings

    Cost Effective, Not Costly

    The customer’s waste-to-energy plant facility provides dependable, environmentally safe disposal of municipal solid waste for 290,000 residents, while generating clean, renewable electricity for sale to the local utility.
     

    ISSUE: 

     
    The conveyor that transports fly ash (by-product from the incinerated residential and commercial waste) was having trouble with the competitor’s backstop on the head shaft, where the unit was leaking oil. There was a concern it would fail without notice and cause an unplanned stop to the operation.
     

    SOLUTION:

     
    Tsubaki engineering reviewed the application, confirmed the motor horsepower and conveyor speed and recommended our BS160HS with the I-beam torque arm. Because of the need to avoid a sudden breakdown, the key factor was the speed of delivery – the product was received after 9 days of drawing approval and installed as a drop in and has been operating smoothly. The customer avoided a potential downtime situation.


  • Tech Time

    Backstop Size Selection for Conveyor Drive Applications

    By Nick Kono
     

    Backstop Mounting Arrangements

     

    Backstops are most commonly used to prevent reverse rotation of an inclined or vertical conveyor systems. Many configurations of conveyor systems that employ backstops are available. Most common types and calculation examples will be presented in this article to properly size the backstop in order to maximize performance and improve safety of the conveyor.

     
    Single and Dual Drives
     
    For low speed overrunning applications, backstops are installed directly on the extended head shaft, as shown in Figure 1 and 2. Tsubaki recommends single installation of the backstop to prevent reverse rotation of head shaft.
     
    Single and Dual Conveyor Drives with Backstops by Tsubaki canada
     
    Tandem Drives
     
    When the conveyor arrangement calls for a primary and secondary drive, as shown in Figure 3, the Backstop on the primary drive unit holds the full load. The Backstop on the secondary drive unit holds the back tension from the belt keeping belt traction on both conveyor systems.
     
    Tandem Conveyor Drives with Backstops by Tsubaki Canada
     
    Tsubaki recommends that the Backstop have the torque capacity that is equal to the sum of the primary and secondary motors be installed on the primary unit drive. The Backstop on the secondary drive unit should be sized from the secondary drive motor only.
     
    Backstop Size Selection
     
    Service Factor
     
    Backstops by definition are required to hold back a load from moving in a reverse direction. Care must be taken in calculating the torque requirements and should be based on maximum or worst case conditions and not average/normal loads.  Because any failure of a backstop might result in costly damages or injuries, care must be exercised by considering all the possible loads and in turn selecting appropriate service factors. The Backstop needs to be sized for the breakdown or stalled torque of the drive motors. The following table shows typical service factors that should be applied when sizing for backstops.
     
    Motor Stalled Torque = Motor maximum torque experienced with no shaft rotation
     

    Maximum Stalled Torque or Breakdown

    Torque % of Normal Motor Rating

    Service Factor
    175% 1.17
    200% 1.33
    250% 1.67
    300% 2.00
     
    Load Sharing
     
    Backstops have no backlash, therefore, two backstops can theoretically share 50% of the total calculated torque. However, we have to consider “load sharing factors”.
     
    Dual Drive Application
     
    In a dual drive application with a single head shaft, if the required backstop capacity is in excess of the listed capacity in the catalogue, a twin arrangement of Backstop Cam Clutch is the solution, as shown in Figure 4. And we have to consider “load sharing factor”
     
    Dual Drive Application for Conveyor Drives with Backstop by Tsubaki Canada
     
    NOTE: In this usage, load sharing factor becomes 1.7 for two Backstop Cam Clutches, not 2.
     
    Examples of Backstop Size Selection
     
    Example No. 1: Single Drive / Single Backstop
     
    Example 1: Single Drive with Single Backstop by Tsubaki Canada
     
    Application Information:
    Drive motor – 125HP
    Head shaft – 43.75 RPM
    Shaft Dia. – 6.00”
    250% stalled torque motor – 1.67 SF
     
    Selection:
    125 HP x 5250 x 1.67 SF / 43.75 RPM = 25,050 ft. lbs.
    Backstop size = BS160HS (Bore range: 3.94” to 6.25”)
    Torque capacity BS160HS = 28,912 ft. lbs. > 25,050 ft. lbs.
     
     Example No. 2: Dual Drive / Single Backstop
     
    Example 2: Dual Drive with Single Backstop by Tsubaki Canada
     
    Application Information:
    Drive motor – 2 x 400 HP
    Head shaft – 29.17 RPM
    Shaft Dia. – 11.25”
    200% stalled torque motor – 1.33 SF
     
    Selection:
    2 x 400 HP x 5250 x 1.33 SF / 29.17 RPM = 191, 498 ft. lbs.
    Backstop size = BS300HS (Bore range: 9.00” to 11.75”)
    Torque capacity of BS300HS = 216,843 ft. lbs. > 191,498 ft. lbs.
     
    Example No. 3: Dual Drive / Dual Backstop
     
    Example 3: Dual Drive with Dual Backstop by Tsubaki Canada
     
    Application Information:
    Drive motor – 2 x 1000HP
    Head shaft – 31.82 RPM
    Shaft Dia. – 13.5”
    200% stalled torque motor – 1.33 SF
     
    Selection:
    2 x 1000 HP x 5250 x 1.33 SF / 31.82 RPM = 438,875 ft. lbs.
    Correction torque = 438,875 / 1.7 = 258,162 ft. lbs.
    Backstop size = BS350HS x 2 pcs (Bore range: 9.88” to 13.73”)
    Torque capacity of BS350HS = 289,124 ft. lbs. > 258,162 ft. lbs.
     
     Example No. 4: Tandem Drive / Tandem Backstop
     
    Example 4: Tandem Drive with Tandem Backstop by Tsubaki Canada
     
    Application Information:
    Primary drive motor – 750 HP
    Secondary drive motor – 750 HP
    Head shaft – 38.89 RPM
    200% stalled torque motor – 1.33 SF
     
    Selection (Primary Backstop):
    2 x 750 HP x 5250 x 1.33 SF / 38.89 RPM = 269,317 ft. lbs.
    Backstop size = BS350HS (Bore range: 9.88” to 13.73”)
    Torque capacity of BS350HS = 289,124 ft. lbs. > 269,317 ft. lbs.
     
    Selection (Secondary Backstop):
    750 HP x 5250 x 1.33 SF / 38.89 RPM = 134, 658 ft. lbs.
    Backstop size = BS270HS (Bore range: 7.875” to 10.625”)
    Torque capacity of BS270HS = 150,462 ft. lbs. > 134,658 ft. lbs.
     
    Example No. 5: Dual Tandem Drive / Dual Tandem Backstop
     
    Example 5: Dual Tandem Drive with Dual Tandem Backstop by Tsubaki Canada
     
    Application Information:
    Primary drive motor – 2 x 1500 HP
    Secondary drive motor – 2 x 1500 HP
    Head shaft – 35 RPM
    150% stalled torque motor – 1.17 SF
     
    Selection (Primary Backstop):
    4 x 1500 HP x 5250 x 1.17 SF / 35 RPM = 1,053,000 ft. lbs.
    Correction torque = 1,053,000 / 1.7 = 619,412 ft. lbs.
    Backstop size = BS450HS x 2 (Bore range: 13.75” to 17.625”)
    Torque capacity of BS450HS = 722,809 ft. lbs. > 619,412 ft. lbs.
     
    Selection (Secondary Backstop):
    2 x1500 HP x 5250 x 1.17 SF / 35 RPM = 526,500 ft. lbs.
    Backstop size = BS425HS (Bore range: 12.75” to 16.625”)
    Torque capacity of BS425HS = 542,107 ft. lbs. > 526,500 ft. lbs.


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Tsubaki Canada - Newsletter - Issue 20: Titan Series Chain

On the Move - News

  • Tsubaki Advantage

    Titan Series Chain

    For Improved Wear Life

    Titan chain’s construction incorporates the latest result of Tsubaki’s R&D to improve roller chain’s wear life made for harsh and high-speed environments. Tsubaki’s Titan Series Chain embodies all the best features of our standard ANSI chain paired with the latest and exclusive features that outperforms competitor’s chains.

    Tsubaki Titan Chain offers distinct advantages that deliver the ultimate in strength and extended wear life:
    • Special coated pins that provide an extra hard, low friction surface that limits the wear between the pin/bushing area, significantly increasing wear life, and providing robust performance even in high debris environments.
    • Zinc coated pin link plates and black oxide roller link plates provide an extra layer of protection for corrosion.
    • Solid Lube Groove Bushing - Tsubaki’s PERFORMAX bushings are cold formed from a solid piece of steel providing seamless construction providing better surface between the pin and bushing while the lube grooves on the inner surface of the bushing retain oil at the point of contact further increasing wear life. Offered in sizes 80-140.
    • Tsubaki’s patented ring-coining connecting link increases fatigue strength and durability of the chain. The unique process causes positive compressive stress around the pitch holes to counteract shock loads. 
    Titan Series Chains are available in a variety of options for your drive chain applications including single and multi-strand, attachment chain, made-to-order and available in sizes 35-240.


  • Cost Savings

    Rotary Drum Furnace

    One of our customers is one of the biggest players in the aluminum billet industry. They were having issues with their rotary drum furnace and called on the Tsubaki team to see how the issues can be improved.
     
    This aluminum billet producer was experiencing rapid chain elongation and the odd breakage every 6-8 months on their 200RB chain installed on their rotary drum furnace. The customer grew exhausted constantly having to repair the 200RB, hence they decided that a permanent solution to increase wear life was warranted.
     
    After investigating the scenario, we recommended the heavy series of our new Titan Series Chain. Tsubaki’s heavy series chain was suggested to address the odd breakage; this resulted in a 20% increase in strength. To address elongation and inability to lubricate due to high temperature, our Titan Series’ innovative hard-chrome plated pins provided a solution. The hard-chromed plated pins have ultra smooth surface and is extra hard, thus, reducing friction on the pin/bearing area while at the same time providing extra strength prolonging wear life.
     
    The recipe Tsubaki suggested has been running on the application for a full year without encountering any breakage or elongation.


  • Tech Time

    Not All Chains Are Created Equal (Part 4) - Corrosion

    Green plant shows Tsubaki stainless steel chains inside

    By Tim Morrison
    Technical Support Manager
     
    Chains are used in a wide range of industrial applications.  Everything from power transmission, lifting, conveyance and everything in between; often in corrosive environments.  The go-to material for most chain is mid-to-high carbon steel. These steels, while having good strength characteristics, can be heat treated, are easily machined and formed, and readily available.  Unfortunately, they do not lend themselves well to corrosive environments.
     
    It is well known that carbon steels in the presence of water and air will corrode, most often in the form of rust.  The presence of salt or other chemicals can increase the rate of corrosion significantly.  There are several ways to reduce the rate of corrosion, although eliminating it is nearly impossible.
     

    Lubrication

     
    The easiest and often the most overlooked solution is to lubricate the chain.  Not only will proper lubrication contribute to optimal chain performance but oil will provide a protective layer around the chain, displacing moisture, and preventing rust from forming. Many food grade lubricants will provide this protection as well. Of course, there are many applications where lubricating the chain is not desirable due to environmental or product contamination concerns.  
     

    Plated Chains

     
    As the name implies plated chain improve corrosion resistance by adding a protective layer on the surface of the chain. Tsubaki Nickel Plated (NP) chain is available in all sizes. Each component is electroplated prior to assembly. NP provides a cost-effective method of moderate corrosion resistance in water applications. Generally, it does not perform well in salt water or chemical environments. Applications where the chain is subject to high impacts or sliding should be avoided.
     
    Tsubaki Neptune™ (NEP) chain is a mechanically applied multi-layer zinc coating that provides good corrosion resistance in water, salt water, and mildly alkaline environments. Especially like those found in applications that require periodic washdown. Since NEP chain is mechanically coated instead of electroplating it has superior adhesion and scratch resistance. Plated chains are not suitable for direct food contact.
     

    Stainless Steel Chains

    Stainless steel chain and sprocket from Tsubaki Canada
     
    Providing the best of corrosion resistance and temperature range, Stainless Steel (SS) is the material of choice for many applications.  They are generally highly resistant to corrosion in acidic, alkaline, and wet environments.  Additionally they can operate in much higher temperatures than standard Carbon Steel chain (-20°C to 400°C).
     
    Tsubaki SS series chain is made completely from 304 stainless.  It can operate in a wide range of corrosive environments.  However, it must be noted that the strength of SS chain is 90% less than the equivalent carbon steel chain.  Loading review must be completed when considering switching from standard chain to SS.  Often a SS chain 2 to 3 times larger must be used to replace the equivalent carbon steel chain.
     
    “AS” series and bushings are made of precipitation-hardened, tempered stainless steel, while the plates and bushings are 18-8 SUS.  This combination results in a maximum allowable load 1.5 times that of SS series chain.  AS series has lower corrosion resistance than SS series.
     
    Finally, “NS” series chain is made completely from 316 stainless steel offering higher corrosion resistance that SS.  
     
    Contact Tsubaki with your specific needs to determine the best anti-corrosive chain for your application.


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Tsubaki Canada - Newsletter - Issue 19: Super Series Chain

On the Move - News

  • Tsubaki Advantage

    Heavy Duty and Super Series Chain

    Example of Heavy Super Series Chains from Tsubaki CanadaWhen an application’s capacity exceeds that of standard RS series roller chain, Heavy Series Chain delivers the same strength as a larger sized standard RS chain. When higher horsepower, higher tensile strength or an increase in maximum allowable load is required, turn to Tsubaki Heavy, HT, Super and Super Heavy Series.
     
    Tsubaki offers a robust line of Heavy and Super Series Chains which will solve your specific driving and conveying problems relating to heavy shock load and/or space limitations.
     

    Key Features:

    • Heavy Series Chain link plates have the same thickness as the next size up standard ANSI chain providing approximately 10% greater shock load capacity. Pins are through hardened for sizes up to 140. For sizes above 140, the pins are case hardened.
    • HT Series Chain provides 15%-30% increase in tensile strength over standard ANSI chain by using through hardened pins and link plates of the next size up chain size. The dimensions of the chain are identical to those of the ANSI Heavy Series roller chain.
    • Super Series Chain has a wider link plate waist, through hardened pins, critically formed and ball drifted link plate holes which all provide 30% greater horsepower ratings and greater shock resistance over standard ANSI chain.
    • Super-Heavy Series Chain shares the wider waist properties of Tsubaki’s Super Series chain. The link plates, however, have the same thickness as the next size up Super Series chain. The same special manufacturing techniques used in Super Series Chain are used to produce the link plate holes for Super Heavy series chain. Pins are also through hardened and Super-Heavy Series has an even higher maximum allowable load than Super Series.


  • Cost Savings

    Chain Failure? Get Tsubaki Super Series Chain

    ISSUE: Incorrect Chain Tension Calculation

     
    The customer has had chain breakage problems using RS100-2 chain with their Saw Infeed Conveyor Drive. The chain failure was caused by excessive loading and speed causing rapid elongation resulting in the chain skipping sprocket teeth. The chain tension calculation revealed that the application load was way too high for the chain capacity. The customer would have to replace their chain every 8 months incurring 2.5 hours of replacement time plus the application downtime cost involved with the replacement.
     

    SOLUTION: Tsubaki Super Series Chain

     
    To cater to the higher load, Tsubaki suggested RS100-3 to support the application’s requirement. Unfortunately, the customer did not have sufficient space needed to accommodate the wider strand of chain that the solution required. To keep the same chain size while upgrading the capacity, we recommended Tsubaki RS100-2 Super Series Chain as well as modified sprocket sizes to reduce chain speed. The cost of the Super Series Chain was almost doubled compared to the standard RS chain. However, the customer saw extensive increase in life of the application from 8 months to 3.5 years and counting. By replacing their chain to one of Tsubaki’s VIP products the customer saved over $2,000 and counting!


  • Tech Time

    Not All Chains Are Created Equal (Part 3) – Tensile & Fatigue Failure

    By Tim Morrison
     
    Technical Support Manager
     
    Chains are designed to transmit units from one point to another.  In the case of a drive chain, it transmits power between one or more rotating shafts.  In the case of a conveyor chain, it transmits material from one point to another using the same method.  In both cases, they are designed to pull a predetermined amount of load based on their size, material, heat treatment, etc.
     
    Generally, maximum pull is divided broadly into two categories: tensile or fatigue.  Tensile strength is defined as the load that when applied once will cause a chain to fail; a massive one-time overload.  On the other hand, a chain’s fatigue strength is defined as the chain’s ability to withstand continuous load without failure.  Exceeding both values will ultimately cause the chain to fail.  
     
    Visual examination of a fracture can generally determine the type of failure.  A tensile fracture usually involves a large amount of deformation.  For lack of a better term, it often looks like the chain has been physically pulled apart.  A fatigue fracture on the other hand usually takes place on the link plate within 30° of the pitch line.  It is a cleaner break with little to no visible deformation. You can see examples of both cases below!
     
    Example of tensile failure in a chain that has been pulled apartExample of chain that is worn from fatigue in Canada
     
    Chain that fails due to Tensile or Fatigue fracture requires different design criteria than chain that fails due to elongation. Components that are designed to reduce the rate of wear, must instead be designed to increase strength.  There is generally a trade-off here; chains that are designed with higher strength ratings generally do not wear as well as standard. Tsubaki manufactures two series of chain to increase strength: SUPER and SUPER-H. 
     
    SUPER chain features through hardened pins, increased waistband, quad-riveted pins, and ball-drifted pin link plate holes. All these features result in a maximum allowable load 30% higher than standard chain.
     
    SUPER-H chain features all the same features as SUPER series with the addition of HEAVY side plates (thickness increased to that of the next size up). The result is a chain with 23% higher tensile strength.  
     
    Both series are available in single, double, and triple strands. All SUPER series and SUPER-H single strands run on single strand sprockets. Double and triple SUPER-H chains require HEAVY sprockets due to increased transverse pitch. Speed should be limited to 160 feet per minute.


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Tsubaki Canada - Newsletter - Issue 18: Engineered Class Chain

On the Move - News

  • Tsubaki Advantage

    How to Improve the Performance of your Engineered Class Chain Operating in Harsh Environments?

    To help improve the performance of your chain operating in harsh environments Tsubaki’s patented seal joint design (SJ3) should be considered.

    Patented Seal Joint Design (SJ3)

    The function of the seals on chains is to limit the amount of debris that enters into the inside of the bushings of the chain. As the chain articulates around the sprockets, the pins rotate relative to the bushings. Steel is worn from the load bearing area of the pins and from the mating inner diameter of the bushings. As this area wears, the pitch of each link becomes longer, resulting in elongation of the chain. When unwanted contaminates enters this area, they accelerate abrasion and corrosion, which ultimately shortens the life of the chain.

    Patented seal joint design from Tsubaki Canada improve chain operation in harsh environments

    Figure 1 illustrates the load bearing area between the pin and bushing (in green). To prevent debris from entering this area, seals may be installed as shown above (in black). Utilizing up to three different seal barriers, Tsubaki’s patented design has proven highly effective in slowing the rate of elongation from corrosion and abrasion.

    Three Barriers: Extended Bushing, Face Seal and Internal Ring Seal

    The first barrier is the extended bushing. This feature has dual purposes. It seals by limiting the clearance between the end of the bushing and the sidebar and it holds and protects the second barrier, the polymer seal.

    Illustration of barriers in patented seal joint design from Tsubaki Canada

    The second barrier is an elastic, corrosion/abrasion resistant Nitrile (or Viton) face seal that is positioned on the outer diameter of the bushing and nests between the sidebars. Nitrile is utilized for operating temperatures up to 250 degrees Fahrenheit, while Viton is used for environments between 250 and 400 degrees Fahrenheit.

    The third barrier is the stainless steel internal ring seal. It is held onto the pin by the compressive force of the spring while articulating in a groove inside of the bushing. The ring seal, in combination with the groove, creates a labyrinth. Any debris that makes it past the first and second seals must get around the labyrinth in order to get into the bearing area. 


  • Cost Savings

    Save Your Engineered Class Chain with Tsubaki’s Patented SJ3 Sealed Chain Design

    ISSUE: Wearing Chains Due to "Dry Cavitation" of Pins

    The customer’s bucket elevator application had a solid history of wearing chains quickly due to “dry cavitation” of the pins. This occurs when fine abrasive debris penetrates the pin-bushing area of the chain and erodes the steel away from the non-bearing side of the pins. In this case the debris is finely milled cement.

    SOLUTION: Tsubaki's Patented SJ3 Sealed Chain

    Prior to installing Tsubaki’s patented SJ3 sealed chain, a competitor’s sealed design was utilized. After 32 months, the competitor’s seals were completely gone and the pins were exposed. At 43 months the competitor’s chain was worn out and had to be replaced.

    Tsubaki SJ3 chain was installed and 40 months later a link was removed to adjust the tension. The pin was in good condition with uniform wear and minimal dry cavitation. Chain elongation measured less that 0.5%. The chain lasted twice as long as the previously installed competitor’s chain.

    Example of a competitor's chain pin in Canada that is worn out after 43 months

    Figure 1: Competitor’s pin after 43 months

    Example of a Tsubaki chain pin in Canada in great condition after 40 months

    Figure 2: Tsubaki’s SJ3 Pins after 40 months

     


  • Tech Time

    Tsubaki WORKHORSE Elevator Chain – Bred for Superior Strength & Ultimate Durability

     

    Tsubaki's Workhorse Elevator Chains are build for strength, toughness and wear resistance in CanadaTsubaki Workhorse elevator chains are specifically designed for use within aggressive bulk material handling environments with harsh fine particulates. The Workhorse Series was uniquely bred to provide superior strength, maximum toughness and legendary dependability.

    Ultimate Strength

    Tsubaki’s Workhorse elevator chains are manufactured with specially selected, premium, high strength steels. Utilizing these specially selected materials and a portfolio of well refined proprietary manufacturing processes, Tsubaki Workhorse is able to achieve a premier ultimate strength rating, far exceeding many rivals. 5800 Series is available with an average tensile strength of 145,000 to 275,000 lbs; 5900 Series is available with an average tensile strength of 160,000 to 285,000 lbs.

    Unparalleled Toughness & Wear Resistance

    Tsubaki Workhorse is in a league of its own when it comes to wear resistance and toughness. Using an exclusive and precisely refined series of heat treatments, Workhorse was born tougher to resist abrasive and demanding forces of aggregate elevators.

    Innovative Protection

    Tsubaki offers an extensive portfolio of premium upgrades such as plated pins/bushings, and patented joint seals – these features can typically be incorporated individually or in combination.