Anyone seen these before

[tony27]

Was looking around for options to tighten up the fit of the bearings on a cz hub & found this. Any opinions

http://www.mcmaster.com/#tolerance-rings/=ae3io7

[Slakewell]

Unsure what you posted , try google speedy sleeve and see if that's what you need?

[tony27]

Its basically a serrated shim sized to specific bearings, you bore the housing oversize- for a 6204 the size is 48.86-48.97mm then slide it into position by overlapping the ends.
From what I can see it would work behind a circlip quite well, fitting the bearing appears to press the highpoints flat locking things up. Thats probably the best way I can think to explain it

[Slakewell]

Ok sounds alot like a speedy sleeve which you can buy at any bearing shop should work fine.

[pancho]

Thats what I was going to suggest Slakewell. cheers pancho

[tony27]

I thought speedy sleeves were only for shafts

[Slakewell]

Shafts are normally built up and re machined , Inside of housings you would bore it and fit a sleeve , You can sleeve a shaft thou.