... speed-adjustable hydraulic coupling reverse-gear reducerProduct usage: used together with 140, 190, 260, 320 and other series diesel ... control and regulation to realize the adjustment of speed. With advantages of on-load startup, overload protection, torsional vibration ... , 550, 650, 750, 830, 900 mm, which can match with internal combustion engines (diesel engine, gas engine) of 135, 140, 160, ...