Specifications

• Reduction
  Single Reduction
• Ratio
  20:1
• Case Included
  Yes
• Max Input Horsepower
  3.947 hp
• Horsepower Rating Normal Duty
  3.947 hp
• Output Bore Type
  Hollow Bore
• Output Type
  Hollow
• Output Direction
  Hollow
• Style
  Flexible Coupling Input
• NEMA / IEC Frame Size
  56
• Maximum Output RPM
  87 rpm
• Maximum Output Torque
  2454 in/lb;277.265 nm
• Housing Material
  Cast Iron
• Seal Material
  Viton
• Keyway Size
  3/16 x 1.6300 in, 4.763 x 41.40 mm
• Service Factor
  1
• Series
  GR
• Manufacturer Reducer Size
  830
• Manufacturer Catalog Number
  GR-HM830-20-H1-56-27
• Weight
  70 lbs, 31.751 kg
• Horsepower
  3.947 hp
• Input Style
  Flexible Coupling Input
• Nominal Ratio
  20:1
• Shaft Diameter
  1.6880 in, 42.88 mm
• Torque Rating (in-lb)
  2454 in-lbs;277.265 Nm
• Bore Diameter
  0.8750 in, 22.23 mm
• Output Shaft
  Hollow Bore
• Gearbox Component Type
  Speed Reducer
• Case Size
  830