... the input end and is installed on the 3000 series hydraulic coupling gear reducerThis type is directly coupled with ... . Currently, the plant has formed hydraulic coupling and hydraulic transmission unit series products of 280, 420, 560, 650, 670, 750, 875, ... 1000, 1150,etc; oil-extended adjusting centrifugal turbine torque converter series products with working chambers diameter of 480, 550, 650, 750 ...