GB12 12.5:1 Bronze


Worm Wheel

Gear Ratio


Nm (Cont)


Nm (Int)


Part No:GB12-12.5B

H: 109mm

GB12 12.5:1 Standard, bronze gears
Spec overview
Gearbox Orientation Right Angle
Gearbox Type Worm Wheel
Gearbox Ratio 12.5:1
Gear Material Bronze
Gearbox Stages 1
Gearbox Efficiency 80%
Gearbox Axial Load 600 N
Gearbox Radial Load 800 N
Gearbox Continuous Torque 30.0 Nm
Gearbox Intermittent Torque 48.0 Nm
Backlash 10-25 arc.min
Weight (kg) 1.5

The Parvalux GB12 is a right-angle, worm wheel gearbox. With available ratios ranging from 12.5 – 75:1, it offers a wide range of output speeds and a capability of up to 30 Nm torque in continuous operation and 48 Nm in intermittent operation. The GB12 gearbox is available with both composite and bronze gears, offering efficiencies of up to 85%. It is also perfectly suited for use with a range of Parvalux PMDC and BLDC motors, with the 15:1, 30:1 and 60:1 bronze gear variants also available from our modular range. These are ready for online purchase and rapid turn-around on orders of up to 10 pieces.