Enclosed Gear Drives & Motors


HM Series Speed Reducer Increaser

Use the HM Series either alone or as a speed reducer or increaser with any Standard NEMA C-Face Gearbox.

  • 3 basic sizes
  • 1/20 - 17 HP
  • Ratios from 1.5:1 - 5:1
  • Output torque ratings from 172 Lb. In. to 1,300 Lb. In.
  • Base-mount and NEMA variations available
  • Output shaft diameters from 5/8" to 1-3/8"
  • White, epoxy coating (BK)
  • Stainless steel, USDA-approved epoxy coating (SBK)
    • Close grained cast iron housing and flanges
    • Hardened steel helical gearing for long life
    • Anti-friction bearings
    • Double lip seals guard against oil leakage
    • Optional steel bolt-on base
    • Double bearing design on input and output shaft
    Boston Gear
    701 Carrier Dr.
    Charlotte, NC 28216
    Web: CONTACT
We are now a part of Regal Rexnord.