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Gearboxes
Spur Gearboxes - Round
SR28
SR28 Spur Gearbox - Round
$5.49
MSRP
Key Data
Gear Ratio 8 :1
Max Continuous Torque 0.5 gf·cm
Breaking Torque 1.5 gf·cm
Gearbox Efficiency 81 %
Gearbox Weight 33 g
Gearbox Options7 variants
SR28 8:1 Compatible Gear Motors1 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
SR2880000 Spur Gearbox - Round SR28 8 :1 3 28 mm 22.5 mm 0.5 gf·cm 1.5 gf·cm 81 % 33 g 4 mm φ2.3 mm -30 ~ 65 C Zinc Alloy (Die casting) Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.3 mm 0.05 mm 2 ° 0.4 M SR2812000 Spur Gearbox - Round SR28 12 :1 3 28 mm 22.5 mm 0.5 gf·cm 1.5 gf·cm 73 % 33 g 4 mm φ2.3 mm -30 ~ 65 C Zinc Alloy (Die casting) Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.3 mm 0.05 mm 2 ° 0.4 M SR2824000 Spur Gearbox - Round SR28 24 :1 4 28 mm 22.5 mm 1 gf·cm 3 gf·cm 66 % 34 g 4 mm φ2.3 mm -30 ~ 65 C Zinc Alloy (Die casting) Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.3 mm 0.05 mm 2 ° 0.4 M SR2836000 Spur Gearbox - Round SR28 36 :1 4 28 mm 22.5 mm 1 gf·cm 3 gf·cm 66 % 34 g 4 mm φ2.3 mm -30 ~ 65 C Zinc Alloy (Die casting) Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.3 mm 0.05 mm 2 ° 0.4 M SR2848000 Spur Gearbox - Round SR28 48 :1 5 28 mm 22.5 mm 1.2 gf·cm 3.6 gf·cm 59 % 34 g 4 mm φ2.3 mm -30 ~ 65 C Zinc Alloy (Die casting) Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.3 mm 0.05 mm 2 ° 0.4 M SR2872000 Spur Gearbox - Round SR28 72 :1 5 28 mm 22.5 mm 1.2 gf·cm 3.6 gf·cm 59 % 34 g 4 mm φ2.3 mm -30 ~ 65 C Zinc Alloy (Die casting) Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.3 mm 0.05 mm 2 ° 0.4 M SR2810800 Spur Gearbox - Round SR28 108 :1 5 28 mm 22.5 mm 1.2 gf·cm 3.6 gf·cm 59 % 34 g 4 mm φ2.3 mm -30 ~ 65 C Zinc Alloy (Die casting) Powder Metallurgy (Fe) / Plastics / Steel Helical Gear / Spur Gear Sleeve Bearing FUMIO 0.3 mm 0.05 mm 2 ° 0.4 M
Technical Specifications Technical Specifications Gearbox Type Spur Gearbox - Round Gearbox Model SR28 Gear Ratio 8 :1 Number Of Gear Stages 3 Gearbox Diameter 28 mm Gearbox Length 22.5 mm Max Continuous Torque 0.5 gf·cm Breaking Torque 1.5 gf·cm Gearbox Efficiency 81 % Gearbox Weight 33 g Shaft Diameter 4 mm Pinion Hole Diameter φ2.3 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 0.3 mm Radial Play 0.05 mm Backlash 2 ° Gear Module 0.4 M
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