Acme threaded rod, formula for torque
Acme threaded rod, formula for torque
(OP)
I plan to use a 3/4" Acme threaded rod in a vertical position. The nut will support a 250# load. The rod will rest on a needle thrust bearing. Is there a formula to compute the torque required to rotate the rod ay a specifies rpm?
Don Morse
dmorse02@twcny.rr.com
Don Morse
dmorse02@twcny.rr.com





RE: Acme threaded rod, formula for torque
I will assume that you are using a combination style needle bearing with rollers or ring to carry the thrust. I have some information from Marks Standard Handbook for Mechanical Engineers that may help. This info deals with calculating the torque using a ring for picking up the thrust. If interseted I could type them out here, scan/email or fax to you.
RLJ
RE: Acme threaded rod, formula for torque
Don Morse
dmorse02@twcny.rr.com