Technical & Reference Section > Tech and Restoration

Fitting a Sealed BB

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madmaxusm:
Just wondered if fitting a sealed BB was the same as fitting a loose bearing one.

When tightening the screws on the sealed BB do you do just the same as on a loose bearing model ie. Tighten up until you loose all play in the bearings but not too much that the crank won't trun freely.

Any help much appreciated.

pickle:
i'm no expert on these things but i think it might be diferent depending on crank and BB??

what crank and BB is it?  piccies will help too  :daumenhoch:

madmaxusm:
This is the crank and sealed BB :

pickle:
i've never fitted one of these before....but do they not require a spacer in the middle so you don't crush the barings?

Rooonga:
Yeh looks similar to the profile bb set. Will need a spacer between the bearings.

I used a small bit of 22mm copper tubing cut down to size on a set that didn't come with the spacer. Nice fit, and keeps the bearings spinning properly.

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