Author Topic: How do you guys remove bearings from a bottom bracket?  (Read 860 times)

Nickk2000

How do you guys remove bearings from a bottom bracket?
« on: June 30, 2021, 08:50:47 AM »
Someone told me i should buy a cheap screw in pressfit bb but swap the bearings. How would i do this? I know wheels mfg has one for like $200 but can someone throw me an aliexpress link if theyve done it? Thanks

Also, taking recommendations for bearings to replace it with.



St0mpB0x

Re: How do you guys remove bearings from a bottom bracket?
« Reply #1 on: June 30, 2021, 09:23:12 PM »
You'll want a tool something like this or this. I can't vouch for either as I haven't used them although I'm planning to buy one to do the same thing.

Schumo

Re: How do you guys remove bearings from a bottom bracket?
« Reply #2 on: July 01, 2021, 06:20:34 AM »
I just used a 1/2" extension and a hammer to get the old bearings out, and a big enough socket to get the new bearings in.

carbonazza

Re: How do you guys remove bearings from a bottom bracket?
« Reply #3 on: July 01, 2021, 06:30:10 AM »
When nothing else is available, a flat screw driver or a 8mm Hex key and a hammer can do the job too.
Just hit gently over the whole circumference of the bearing.

If the bearings is too far, it may disassemble(with a press too), leaving the outer race only in the frame.
Although more challenging a hammer with a flat screw driver can get it out.

Zoc

Re: How do you guys remove bearings from a bottom bracket?
« Reply #4 on: July 01, 2021, 07:25:12 AM »
some WD40 also is very helpfull

Nickk2000

Re: How do you guys remove bearings from a bottom bracket?
« Reply #5 on: July 01, 2021, 08:25:43 AM »
Thanks fellas. Bb86 is the same size as bb386 right?

Schumo

Re: How do you guys remove bearings from a bottom bracket?
« Reply #6 on: July 01, 2021, 08:31:44 AM »
Nope, BB86 is 41mm frame diameter for 24mm crank axles, BB386 is 46mm frame diameter for 30mm crank axles.

Nickk2000

Re: How do you guys remove bearings from a bottom bracket?
« Reply #7 on: July 01, 2021, 09:29:23 AM »
Okay. Those tools dodnt say bb386 :( unless im blind. I run bb386 dub.

Edit: nevermind. Descrip says im good. Im assuming even though its dub a bb386 tool is fine right?