Force required to press in bearing
Force required to press in bearing
(OP)
I need force required to press in a Ball Bearing maximum O.D. .50000" into a .4991 I.D minimum bore material 303 Stainless Steel.
Reference .0009" interference fit.
Reference .0009" interference fit.





RE: Force required to press in bearing
What's the poissons ratio?
Length of fit?
Surface finish?
They all make a difference.
RE: Force required to press in bearing
RE: Force required to press in bearing
A frictionless bearing can be retained using a variety of standard methods, like a retaining ring & pre-load washer, a bearing cap, a bearing locknut, etc. As a last resort, I would use Loctite before I would press fit a ball bearing.
A good resource for bearing mounting methods is an old New Departure Handbook. You can usually find them on Ebay. Here's one:
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Don
Kansas City
RE: Force required to press in bearing
I'd be inclined just to push it in with whatever means you have, including a block of wood plus hammer. if it feels wrong, take it out again and try another bearing with different tolerance.
Chhers CM
RE: Force required to press in bearing
Ted
RE: Force required to press in bearing
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I would not worry about calculating the force since most presses/ bearing mounting tools will have plenty of force to mount a bearing this small.
The most important thing is to put uniform force all around the ring and never use a hammer directly on the bearing. Press on the outer ring to mount in the housing and press the inner ring to mount on the shaft.
Good luck.