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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