Hydraulic Pumps

GPM = [RPM X CID] / 231 X EFF

CID = [GPM X 231] / RPM

T = [CID X PSI] / 75.36 lbs ft

T = [CID X PSI] / 6.38 lbs inch

T = [HP X 5252] / RPM lbs ft

T = [HP X 63025] / RPM lbs inch

HP = [T X RPM] / 5252 lbs ft

HP = [T X RPM] / 63025 lbs inch

Cylinders

F = PXA

P = F/A

A = F/P

Hydraulic Motors

RPM = [GPM X 231] / CIR

CIR = [GPM X 231] / RPM

T = [CIR X PSI] / 75.36 lbs ft

HT = [CIR X PSI] / 6.28 lbs inch

Glossary of Terms

F= Force

A= Area

P= Pressure

Eff. = Efficiency

HP = Horse Power

GPM= Gallons Per Minute

PSI = Pressure Per Sq. Inch

RPM= Revolutions Per Minute

231 = Cubic Inches in 1 Gallon

T= torque

CID = Cubic Inches Displaced per revolution [Pump]

CIR = Cubic Inches Displaced per revolution [Motor]