Skip to content

SR37 Spur Gearbox - Round

SR37 Series

The 37 mm SR37 is a round spur gearbox with sleeve-bearing output support. Its ratio range and four listed body lengths allow different reductions to be compared.

Product Highlights

  • Listed gear ratios: 9.5–1154:1
  • Gearbox diameter: 37 mm
  • Output bearing: sleeve bearing
  • Gearbox length: 30.5–38 mm

Customization Available

  • Custom output shaft dimensions and features
  • Mounting and mechanical integration
  • Gear ratios
  • Special lubricants

Product Specifications

ModelSR3795000SR3710000SR3719000SR3728500SR3743000SR3757000SR3785500SR3712800SR3717100SR3725650SR3738500SR3751300SR3776950SR3711540
Gearbox TypeSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - Round
Gearbox ModelSR37SR37SR37SR37SR37SR37SR37SR37SR37SR37SR37SR37SR37SR37
Gear Ratio (:1)9.5101928.5435785.5128171256.5385513769.51154
Max. Input Speed (rpm)——————————————
Number Of Gear Stages33444555666777
Gearbox Diameter (mm)3737373737373737373737373737
Gearbox Length (mm)30.530.530.530.530.533333335.535.535.5383838
Max Continuous Torque (mN·m)196.13196.13196.13196.13196.13392.27392.27392.27588.40588.40588.40588.40588.40588.40
Breaking Torque (mN·m)588.40588.40588.40588.40588.401176.801176.801176.801765.201765.201765.201765.201765.201765.20
Gearbox Efficiency (%)7373737373595959535353505050
Gearbox Weight (kg)0.1080.1080.1080.1080.1080.1140.1140.1140.1220.1220.1220.1260.1260.126
Shaft Diameter (mm)66666666666666
Pinion Hole Diameter (mm)φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17φ 2 / φ 3.17
Operating Temperature Range (°C)-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65
Gearbox Housing MaterialZinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)Zinc Alloy (Die casting)
Gear MaterialPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / SteelPowder Metallurgy (Fe) / Plastics / Steel
Gear DesignHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur GearHelical Gear / Spur Gear
Output Shaft BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve BearingSleeve Bearing
Lubricant In GearboxFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIOFUMIO
Axial Play (mm)0.350.350.350.350.350.350.350.350.350.350.350.350.350.35
Radial Play (mm)0.050.050.050.050.050.050.050.050.050.050.050.050.050.05
Backlash (°)22222222222222
Gear Module (M)0.50.50.50.50.50.50.50.50.50.50.50.50.50.5

Product downloads

Specification3D CAD
—