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  #1  
Old 06-17-2021, 06:35 AM
MDeCraene13 MDeCraene13 is offline
 
Join Date: Jul 2019
Location: Asheville
Posts: 17
Default Micro-Stop Cage Rebuild

My micro-stop cage was behaving erratically, so I took it apart and found a bearing that looked like the attached image.

I decided to attempt to rebuild it and posted the details on my build log here:

Build Log Post Link

The bearing I used was McMaster P/N 7806K64.

I have not used my rebuilt cage extensively, so time will tell how it holds up.
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  #2  
Old 06-17-2021, 08:52 AM
John Tierney John Tierney is offline
 
Join Date: Jan 2006
Location: Vonore, TN
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I'm guessing somebody used that in a drill press and pressed way too hard.
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  #3  
Old 06-17-2021, 08:59 AM
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Dan 57 Dan 57 is online now
 
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Location: LSZF
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well, shouldn’t happen on good quality tooling... had one those ATS cheapies bought in 1986 (...), and the Chinese balls were kinda soft (...), the resulting oblong countersinks leading to VS #3 whilst building the -4

And that was the day I decided to buy top quality tooling only
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  #4  
Old 06-17-2021, 09:23 AM
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Mike S Mike S is offline
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Location: Dayton Airpark, NV A34
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Couple of those look more like cubes than balls
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  #5  
Old 06-17-2021, 09:29 AM
Taltruda Taltruda is offline
 
Join Date: Oct 2017
Location: Las Vegas, NV
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I bought some used ones from fleabay, and they were all gritty and unusable. Less that 10 minutes each and I had them like new again! The bearings didn’t seem damaged, but they were dried up and crusty. I thought they were needle bearings in mine, but they might have been balls. Whatever they were, they weren’t captured, and I had to make sure I got all of them back in there with a drop of oil!
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  #6  
Old 06-17-2021, 09:52 AM
David Paule David Paule is offline
 
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Location: Boulder, CO
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Very nice write-up in your log, thanks!

Dave
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  #7  
Old 06-18-2021, 06:32 AM
pdecraene7a pdecraene7a is offline
 
Join Date: Jan 2005
Posts: 154
Thumbs up micro stop

Nice airplane drawing on the work bench
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