Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
Owner’s Manual
Counter Shaft & Thrushaft
Bulletin HY25-1396-M1/US
Conversion Chart
8
Horsepower-Torque-R.P.M. Conversion Chart
To find the Torque:
Given: 100 HP at 1750 R.P.M.
Then: with a straight edge on HP scale at 100 (Left Side) and on
R.P.M. scale at 1750.
Find Answer on T scale = 300 pounds feet torque (Middle).
Formula: HP x 5252 = T pounds Feet Torque
R.P.M.
To find the HP.
Given: 3 pounds feet torque at 1750 R.P.M.
Then: with a straight edge on the “T” scale at 3 (Middle) and on
the R.P.M. scale at 1750.
Find Answer on the HP Scale = 1 Horsepower (Left Side)
Formula: T x R.P.M. = Horsepower
5252