Bearings for bottom bracket

[Alfkeep]

Need some help with how to find out what bearings to get or if I need a full new bottom bracket for bike any help would be much appreciated

[keyboardmonkey]

There are very many bottom bracket ‘standards’ to choose from. You should state the make/model/year of your bike and ideally upload some useful photographs when you are able.

[Jdsk]

Welcome.

As above.

Will you do the work yourself?

Jonathan

[mumbojumbo]

Simply take your bearings a bike shop and order a score or two the same size!Take the cups with you.

[chris_suffolk]

Depending on the system, e.g. External HollowTech or press fit, you can't normally change the bearings - just fit new. Square taper, normally can change.

[Grandad]

Square taper, normally can change.

Or replace with a sealed unit

[robgul]

Given the original question I think the only answer for the poster to find out is to take the bike to a shop for them to identify the type of bottom bracket (and indeed assess whether the current BB needs replacing)

From the top of my head there are about 5 or 6 different possibilities, and then varying sizes. And of course there are usually specialist tools required to remove and refit.

[rogerzilla]

But if it's a traditional cup and cone BB, 22 x 1/4" balls, no higher than Grade 100.