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    View All Poly Chain® GT™2 Sprockets

    8MX-30S-21 REBORE

    Product# # 78963507

    Poly Chain GT sprockets use the tooth profile designed and developed by Gates and function with Gates Poly Chain GT belts in all existing constructions. These sprockets are statically balanced to make sure the entire belt drive is as safe as possible. Furthermore, they are manufactured, specified, and tested to perfectly support the full power capabilities of the Gates Poly Chain belt product range. Belts and sprockets used together get the best out of your belt drive: maximum performance, prolonged antistatic properties and optimal lifetime.

    • WARNING: Do NOT use these sprockets with rim speeds in excess of 6,500 fpm.
    • Smaller, narrower sprockets save shaft space, keep the load closer to bearing and extend life of reducer.
    • Poly Chain® GT® Sprockets keep overhung load below manufacturers' recommendation.
    • Precisely manufactured and statically balanced to ISO 1940 (1973) to class G16.
    • Details shown which do not affect drive function or overall weight may be changed without notification.
    • On a sprocket, pitch is the distance between groove centers and is measured on the pitch circle of the sprocket. The pitch circle of the sprocket coincides with the pitch line of the belt mating with it. The pitch diameter of the sprocket is always greater than its outside diameter.
    • Sprocket part numbers are comprised of pitch, number of grooves and width. For example; part number 8MX-48S-12 denotes 8mm pitch, 48 grooves, "S" for sprocket and 12mm width.
    • Sprockets with 90 or more grooves do not have flanges.

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    • Product Details
      Part # 8MX-30S-21 REBORE
      Product # 78963507
      Description: 8MX-30S-21 REBORE
      UPC 770075447740
      Belt Width (in) 0.83
      Belt Width (mm) 21
      Number of Teeth 30
      Width (mm) 21

    THE INDUSTRY'S BEST.

    With patented, carbon tensile cord design for high-torque, low-speed drives, Gates® engineers were the first in the world to incorporate a high fatigue-resisting carbon fiber tensile cord into the belt, which is made of a new polyurethane compound. Consequently, Poly Chain® GT™ Carbon™ quickly became the most powerful line of synchronous belts on the market, providing a maintenance-free, energy saving, and environmentally friendly operation, offering an excellent alternative to roller chain and gear drives.

    Features and Benefits

    • Keep overhung load below manufacturers recommendation.
    • Full split in bushing allows for easy installation and removal.
    • Precise sprocket design produces positive, press fit to shaft.
    • Re-work services have turnaround time.
    • Warning: Do NOT use these sprockets with rim speeds in excess of 6,500 fpm.

    METALS MADE TO YOUR APPLICATION SPECIFICATIONS.

    With Gates® MachineWorks services, our product application experts work with you or your facility manager to customize drive components in a variety of bores, styles, materials, and finishes for your non-standard and prototype power transmission and belt drive applications.

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