Re: [CR]Hub Race Removal

(Example: Bike Shops)

Date: Sat, 27 Jan 2007 11:55:36 -0500
From: "Eric Goforth" <ewgoforth@earthlink.net>
To: Classicrendezvous <classicrendezvous@bikelist.org>
Subject: Re: [CR]Hub Race Removal
References: <JJEEKLDDELHGFDGDBELBEEDAEFAA.avitzur@013.net.il>
In-Reply-To:


Amir Avitzur wrote:
>
> I probably should have heated the hub to loosen the races
> but the Mrs. does not approve of such uses of her kitchen.
>
> Anybody have a home-made race mounting tools they recommend?
>
> Amir Avitzur
> R"G Israel
>

Amir,

I've heated water in a tea kettle and carried it outside to pour aluminum motorcycle hubs to free up press fit bearings. That might be a compromise with your Mrs.

I've never tried replacing races in a bicycle hub, but I would think that you could drive them out from the opposite side with a long thin drift. As far as pressing them in I would try either driving them in using a suitably sized socket (just smaller than the outer diameter of the race) and a hammer. Alternatively you can make a press-like contraption with some threaded rod , a couple nuts, washers, and a couple sockets that were just under the outer diameter of the races. I think you'd want to heat the aluminum hub before using any of these methods.

-Eric
--
Eric Goforth
Raleigh, NC USA