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HM Series Speed Reducer Increaser | Boston Gear

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)

Product Features

  • 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

Product Data Sheets

  • p-1485-bg_hm-series_double-c-face_helical-multiplier
Click on image below to download pdf. To order hard copies of literature click here.

Product Catalog

  • Worm, Helical & Bevel Gear Drives

Product News

Contact Info

Boston Gear
701 Carrier Dr.
Charlotte, NC 28216
Phone: 1-888-999-9860