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Unread 11-07-2012, 16:08
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Re: Press Fit

Quote:
Originally Posted by Brandon Holley View Post
Also- the ball bearing/ball peen trick is a nice one if youre in a bind. We have a nice 1.5" diameter steel ball bearing. If a hole is a little bit too large, we can just stuff that bearing into the hole and whack it with a hammer. It creates a little curl of material just big enough to bite the bearing and hold it in place.
-Brando
On Emperor Swerve we had a 37mm bearing bore that we attempted to waterjet to exact size cutting super slow (like .7 in/min). The walls ended up being nontapered, but the kerf was larger than normal so the hole was easily .002 oversize.

We used some punches and ball peen hammer to rough up both the lip, and the inner diameter of the bore quite a bit in an even fashion around the diameter, and finished the assembly with bearing loctite.

We were able to "fill" that .002" gap in a really high load application with these methods and the bearings still have not loosened.
 


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