Bob,
you are right.  I just pulled mine apart and drilled out the rivets. 
Turns out the bearing is fine but it can move around in the hole.  I
remember someone mentioning "bearing retaining compound".  I will to to
find some.
You are right, #8 screws fit great.
Ulix
BCAH@aol.com wrote:
> 
> I always though there was a retaining plate which was riveted in place. The
> reason I have not done mine is I was still in the dark  as to the riveting
> procedure.  I was thinking small #8 machine screws if riveting was a problem.
> Getting bearing was no problem,,Mini Mania had it. While I  was at it , I got
> the bushing and brush set also.--------------Bob C
 
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