LEESON Electric Corporation  

Ratio Multipliers


Ratio Multiplier

Grove Gear ratio multipliers are available with ratings up to 20 HP. Compact in size, the versatile units allow users to increase torque and efficiency.  A dual purpose design can be used as a stand-alone single reduction inline reducer or as a bolt-on to the input of any c-faced gear reducer to multiply overall reduction ratio.  The ratio multipliers are available in cast iron, stainless steel, aluminum and WASHGUARD® versions for a variety of applications.


  • Three sizes available in cast iron with ratings to 20 HP and ratios from 2:1 to 7.5:1
  • Three sizes available in aluminum with ratings to 13 HP and ratios from 1.3:1 to 10.8:1
  • One size available in stainless steel with ratings to 4.7 HP and ratios from 2:1 to 7.5:1
  • Increases torque and efficiency as a primary drive
  • Double lip seals
  • Factory filled with lubricant
  • Easy to install and maintain
  • Mounts in any position
  • Will accept any C-Face motor
  • Will bolt to any C-Face reducer
  • Increases inventory flexibility
Catalog Pages -
Ratio Multipliers
Gear Reducer eCatalog and Product Locator