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Tapered headset bearings
http://www.retrobike.co.uk/forum/viewtopic.php?f=41&t=389302

Author:  ishaw [ Mon Sep 17, 2018 7:18 pm ]
Post subject:  Tapered headset bearings

I need to buy a lower race bearing. Research suggests it's a zs56/40.

My Google fu must be failing me as I can't seem to find any, aside from hope which are too pricy for me (it's a 650b build to see if I like it, so don't want to spend too much).

Even my usual go to UK based online bearing places don't seem to recognise the bearing code.

Anyone got any ideas on where I can find a cheap bearing that will fit, or even a complete headset?

Author:  clubby [ Mon Sep 17, 2018 8:54 pm ]
Post subject:  Re: Tapered headset bearings

https://www.superstarcomponents.com/en/ ... om-set.htm

Author:  jimo746 [ Mon Sep 17, 2018 8:59 pm ]
Post subject:  Re: Tapered headset bearings

clubby wrote:
https://www.superstarcomponents.com/en/uk-made-headset-bottom-set.htm


Theres nothing Clubby doesn't know about balls (bearings) :o

Author:  The History Man [ Mon Sep 17, 2018 9:22 pm ]
Post subject:  Re: Tapered headset bearings

Possibly my shed. Do you have dimensions? I bought something like that way back by mistake and chucked in the spares box. I can stick a vernier on it ?

Author:  ishaw [ Mon Sep 17, 2018 10:40 pm ]
Post subject:  Re:

Thanks. I was hoping to just get a bearing as I have the rest of the headset already, but this is certainly an option.

I'll get the ruler out on the one I have, verniers are a bit dodgy but will try them as well.

Author:  ishaw [ Mon Sep 17, 2018 11:09 pm ]
Post subject:  Re: Tapered headset bearings

The History Man wrote:
Possibly my shed. Do you have dimensions? I bought something like that way back by mistake and chucked in the spares box. I can stick a vernier on it ?

Using verniers the od is 52mm, the id is 39.9. It's an angular contact bearing, but not sure what the angle is. A bit of research suggests this is a pretty common tapered set up, the 56 in the headset name is the outer dimension of the cup, not bearing.

Credit to park tools for the useful info: https://www.parktool.com/blog/repair-he ... ion-system

Author:  The History Man [ Tue Sep 18, 2018 5:26 pm ]
Post subject:  Re: Tapered headset bearings

mine is cup od 44 and bearing id 30.1 weird tange thing

Author:  ishaw [ Tue Sep 18, 2018 7:04 pm ]
Post subject:  Re:

No worries, thanks for looking.

Author:  Andy B [ Tue Sep 18, 2018 10:06 pm ]
Post subject:  Re: Tapered headset bearings

Try kinetic bike bearings website

We use them in the workshop, they certainly know their stuff

Author:  dazdc5 [ Wed Sep 19, 2018 8:02 pm ]
Post subject:  Re:

Try THESE

Author:  mdvineng [ Tue Sep 25, 2018 12:01 pm ]
Post subject:  Re: Tapered headset bearings

https://simplybearings.co.uk/shop/Beari ... index.html

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