Belden-Hutter Useful Formulas

Torque (in-lbs) = Horsepower x 63,025 / RPM

Shaft Stress (PSI) = (5.1 torque in-lbs)x(O.D. inches) / (O.D. inches^4 - I.D. inches ^4)

Torsional Twist (Degrees) =.0000507 xTorque(inch lbs)x l (length in inches)/d^4 Usual allowable is .08 deg. per foot of length.

Motion Uniformly Accelerated from Rest = S=1/2at^2 , S=1/2 Vft, S=Vf2 / 2a

Motion Uniformly Accelerated from Velocity = S=Vot + 1/2 at^2 , S=(Vf +Vo^2) / 2 , S=(Vf2-Vo2) / 2a , S=Vft -1/2at^2

Motion Uniformly Accelerated from Rest = S=1/2at^2 , S=1/2 Vft, S=Vf2 / 2a

For Shock Absorbers: Kinetic Energy(ft-lbs) = Wlbs x V^2fpm / 231,840

Vf =Velocity feet per second
Vo =Initial Velocity feet per second
a =Acceleration feet per second per second
t =Time is seconds
s =Distance in feet