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Unread 19-11-2012, 09:58
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Brandon Holley Brandon Holley is offline
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Re: Bearings in Sheet Metal

Quote:
Originally Posted by akoscielski3 View Post
So your bearings were never pressed into the actual intake, they were only pressed onto these plates? I like that idea alot actually. Were they pressed in? Or bolted on to these plates? If they were pressed how much smaller, if any, were the holes made for the bearings?

Thanks, great idea btw.
Yeah the bearings were only pressed into the bearing plates. The bearing plates were then bolted to the intake.

For any part that we are making in-house we can reliably undersize the press fit to 0.0005" under and press with no issue. The most reliable way to get good press fits is to invest in the 2 reamers you would need to do 3/8" bore and 1/2" bore bearings (0.8745" and 1.1245"). This becomes a very repeatable process for your team, where you size bearing holes slightly under and ream to the final diameter. You will have much more consistent press fits this way. This will also help you where you may be using a process besides a CNC mill where the tolerances on the diameter may be a little bigger (ie: waterjet). Again, you'd undersize for the waterjet, and just finish with the reamer.

-Brando
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MORT (Team 11) '01-'05 :
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Last edited by Brandon Holley : 19-11-2012 at 10:00.