Helical Gear Drive HM Series HMF3-4-B9-B11

boston-gear-drives-groupHelical HM Series Quill

Part NoHMF3-4-B9-B11
Ratio 4
Torque Cap1258
Bore CodeB9
Output RPM @1750437

The Helical-Multiplier reducer can be used as either a speed reducer or increaser or in combination with a 700 Series worm gear reducer to create an efficient right angle double reduction speed reducer.

  • close grained cast iron housing and flanges
  • hardened steel helical gearing for long life
  • anti-friction bearings
  • double lip seals guard against oil leakage
  • brass spring loaded breather plug keeps out dirt and water
  • optional steel bolt on base
  • double bearing design on input and output shaft

Click on link below to see Drawings and Specs:
Boston Gear Drive – HM Series PDF