Custom Round Spur Gearboxes
Compact round spur gearboxes for economical inline speed reduction where moderate backlash is acceptable. SGMADA models cover 25–50 mm diameters, 2–8 gear stages, and ratios from 7.2:1 to 3,532:1 for pumps, conveyors, valve actuators, vending equipment, and general automation.
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SR28 Spur Gearbox - Round
MSRP $5.49
- Gear Ratio: 8 - 108 :1
- Max Continuous Torque: 0.5 - 1.2 gf·cm
- Breaking Torque: 1.5 - 3.6 gf·cm
- Gearbox Efficiency: 59 - 81 %
- Gearbox Weight: 33 - 34 g
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SR25 Spur Gearbox - Round
MSRP $5.49
- Gear Ratio: 8 - 783 :1
- Max Continuous Torque: 0.3 - 1.5 gf·cm
- Breaking Torque: 0.9 - 4.5 gf·cm
- Gearbox Efficiency: 40 - 81 %
- Gearbox Weight: 33 - 37 g
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SR32 Spur Gearbox - Round
MSRP $5.99
- Gear Ratio: 10 - 550 :1
- Max Continuous Torque: 1 - 3 gf·cm
- Breaking Torque: 3 - 9 gf·cm
- Gearbox Efficiency: 50 - 73 %
- Gearbox Weight: 33 g