TOPThin Differential Reducer Line-up Thin Differential Reducer Line-up Standard Differential Reducer PSR series Frame No. 70,110,135 Reduction ratio 19 - 59 Acceleration peak torque(N・m) 32 - 260 Lightweight Differential Reducer PSL series Frame number 70,110 Reduction ratio 19 - 59 Acceleration peak torque(N・m) 26 - 104