GB9 12.5:1 Composite


Worm Wheel

Gear Ratio


Nm (Cont)


Nm (Int)


Part No:GB9-12.5C

L: 138 × W: 73 × H: 165mm

GB9 12.5:1 Standard, composite gears
Spec overview
Gearbox Orientation Right Angle
Gearbox Type Worm Wheel
Gearbox Ratio 12.5:1
Gear Material Composite
Gearbox Stages 1
Gearbox Efficiency 90%
Gearbox Axial Load 600 N
Gearbox Radial Load 800 N
Gearbox Continuous Torque 50.0 Nm
Gearbox Intermittent Torque 80.0 Nm
Backlash 10-25 arc.min
Weight (kg) 2.3

The Parvalux GB9 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 75 Nm torque in continuous operation and 120 Nm in intermittent operation. The GB9 gearbox is available with both composite and bronze gears, offering efficiencies of up to 90%. 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 composite 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.