Side Load on Pump or Motor Shaft Equation Calculation

Fluid Flow Table of Contents
Hydraulic and Pneumatic Knowledge

Side Load on Pump or Motor Shaft Equation Calculation

Direct drive of the pump is always's preferred. When the pump is not direct-driven, the effects of the shaft side load should be considered. Shaft side load directly affects bearing life. The effect on bearing life is the primary reason to minimize side load.

Side Load on Pump or Motor Shaft Equation Calculation

  F = (HP x  63024) / (RPM x R)

Where:

F is the side load, in pounds against shaft
R is the pitch  radius, in inches, of sheave on pump shaft
HP is the driving power applied to shaft