Special Gears


"Intelligent solutions that will be developed in close consultation with our customers are the basis for a successful and sustainable cooperation."
Thomas Wiegand
Sales Special Gears


Shifting gearbox

Single stage helical shifting gearbox in turbo execution for speed adaption of the unit under test in a helicopter gearbox test stand.


The wheel shaft can be disengaged by a switching lever to test the single turbine mode in closed loop test stand.

Type: HTGW 237
Center distance: 237 mm
Power: 1,865 kW
Input speed: 4,216 / 4,975 rpm
Input torque: 4,222 Nm
Output speed: 23,000 / 27,140 rpm
Output torque: 774 Nm
Ratio: 1 : 5.45
Weight: 490 kg