Breakway Torque
Breakway Torque
(OP)
Can anyone show me how to estimate the breakaway torque of a direct driven cylinder with the radius of 5" and weight of 100 lbm on a metal to metal bearing surface. I can do it with experiment but I was wondering if there is a magic equation for it.
Thanks
Thanks





RE: Breakway Torque
W * mu * R
Where W is your 100 pounds.
mu is friction for the bearing surface.
R is the bearing radius
RE: Breakway Torque
Elaborate that a little bit please. From your equation, the weight of the cylinder is considered normal force?. If I have this much breakaway torque, how could my acceleration torque is much smaller?
Thanks
RE: Breakway Torque
RE: Breakway Torque
Sure.
I'm trying to size my motor and need it to find the "breakaway" torque ( from static friction I guess) value.
Thanks