Which thread has more friction.
Which thread has more friction.
(OP)
If I have a motor with a 1/2-10 acme thread that drives a lead screw and another motor with a 3/4-10 screw, which screw would cause the most friction/resistance for my motor? Would more thread surface area be good or bad in this case. Any help or insite would be greatly appreciated.
Thanks
Thanks





RE: Which thread has more friction.
Do a keyword search on this website for previous threads which have discussed the same topic.
Check some "standard" mech engr. texts, such as Marks' Hndbk, and Lindberg (spellling?). There are at least two different definitions of torque coefficient (different from friction coefficient) each of which is a function of thread geometry among other parameters. So, there ought to be a difference between your two choices. Let's hope that it is consistent from one calculation to the other...
RE: Which thread has more friction.
RE: Which thread has more friction.
Friction of Screw or bolt will be high if they have less pitch & more dia.
RE: Which thread has more friction.