Pump Drive Calculator

Calculate engine or electric motor requirements for driving a hydraulic pump including coupling selection.

Input Parameters

Results

--
Required Power
HP
--
Recommended Driver
HP
--
Drive Torque
lb·ft
--
Coupling Torque Rating
lb·ft
Note: Always select the next standard motor size above calculated HP. Coupling rated at 2× torque for shock loads.

Reference

Required HP = (P × Q) / (1714 × η_pump) Driver HP = Required HP × Service Factor Torque = (HP × 5252) / RPM Coupling Rating = 2 × Drive Torque SF: Electric=1.15, Diesel=1.20, Gas=1.25