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Gearboxes
Spur Gearboxes - Round
SR37
SR37 Spur Gearbox - Round
$5.99
MSRP
Key Data
Gear Ratio 9.5 :1
Max Continuous Torque 2 gf·cm
Breaking Torque 6 gf·cm
Gearbox Efficiency 73 %
Gearbox Weight 108 g
Gearbox Options14 variants
SR37 9.5:1 Compatible Gear Motors2 products
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Model & Specification Comparison
SKU Gearbox Type Gearbox Model Gear Ratio Number Of Gear Stages Gearbox Diameter Gearbox Length Max Continuous Torque Breaking Torque Gearbox Efficiency Gearbox Weight Shaft Diameter Pinion Hole Diameter Operating Temperature Range Gearbox Housing Material Gear Material Gear Design Output Shaft Bearing Lubricant In Gearbox Axial Play Radial Play Backlash Gear Module
SR3795000 Spur Gearbox - Round SR37 9.5 :1 3 37 mm 30.5 mm 2 gf·cm 6 gf·cm 73 % 108 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3710000 Spur Gearbox - Round SR37 10 :1 3 37 mm 30.5 mm 2 gf·cm 6 gf·cm 73 % 108 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3719000 Spur Gearbox - Round SR37 19 :1 4 37 mm 30.5 mm 2 gf·cm 6 gf·cm 73 % 108 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3728500 Spur Gearbox - Round SR37 28.5 :1 4 37 mm 30.5 mm 2 gf·cm 6 gf·cm 73 % 108 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3743000 Spur Gearbox - Round SR37 43 :1 4 37 mm 30.5 mm 2 gf·cm 6 gf·cm 73 % 114 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3757000 Spur Gearbox - Round SR37 57 :1 5 37 mm 33 mm 4 gf·cm 12 gf·cm 66 % 114 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3785500 Spur Gearbox - Round SR37 85.5 :1 5 37 mm 33 mm 4 gf·cm 12 gf·cm 59 % 122 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3712800 Spur Gearbox - Round SR37 128 :1 5 37 mm 33 mm 4 gf·cm 12 gf·cm 59 % 122 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3717100 Spur Gearbox - Round SR37 171 :1 6 37 mm 35.5 mm 6 gf·cm 18 gf·cm 59 % 122 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3725650 Spur Gearbox - Round SR37 256.5 :1 6 37 mm 35.5 mm 6 gf·cm 18 gf·cm 53 % 126 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3738500 Spur Gearbox - Round SR37 385 :1 6 37 mm 35.5 mm 6 gf·cm 18 gf·cm 53 % 126 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3751300 Spur Gearbox - Round SR37 513 :1 7 37 mm 38 mm 6 gf·cm 18 gf·cm 53 % 126 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3776950 Spur Gearbox - Round SR37 769.5 :1 7 37 mm 38 mm 6 gf·cm 18 gf·cm 53 % 126 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M SR3711540 Spur Gearbox - Round SR37 1,154 :1 7 37 mm 38 mm 6 gf·cm 18 gf·cm 53 % 126 g 6 mm φ 2 / φ 3.17 mm -30 ~ 65 C Zinc Alloy （Die casting） Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.35 mm 0.05 mm 2 ° 0.5 M
Technical Specifications Technical Specifications Gearbox Type Spur Gearbox - Round Gearbox Model SR37 Gear Ratio 9.5 :1 Number Of Gear Stages 3 Gearbox Diameter 37 mm Gearbox Length 30.5 mm Max Continuous Torque 2 gf·cm Breaking Torque 6 gf·cm Gearbox Efficiency 73 % Gearbox Weight 108 g Shaft Diameter 6 mm Pinion Hole Diameter φ 2 / φ 3.17 mm Operating Temperature Range -30 ~ 65 C Gearbox Housing Material Zinc Alloy （Die casting） Gear Material Powder Metallurgy (Fe) / Plastics / Steel Gear Design Helical Gear / Spur Gear Output Shaft Bearing Sleeve Bearing Lubricant In Gearbox FUMIO Axial Play 0.35 mm Radial Play 0.05 mm Backlash 2 ° Gear Module 0.5 M
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