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Rear wheel hub needs machining for 42 WLA

Moderators: Curt!, Pa



Posts: 13

Joined: Wed Oct 29, 2003 1:01 am

Location: Livonia,MI USA

Post Fri Sep 01, 2006 3:02 pm

Rear wheel hub needs machining for 42 WLA

I have a rear wheel hub for a 42 WLA. the bearing surface on the star side of the hub is kinda chewed up. I have heard of people that can machine them for Timkens. Does anyone know who does this? Alternatively, can the hub be machined and a race be installed? Thanks.


Posts: 349

Joined: Thu Jun 24, 2004 12:01 am

Location: Champaign-Urbana, IL

Post Tue Sep 05, 2006 1:16 pm


These guys CLAIM that they do "hub regrinding" but I have no experience with them. Might be worth a phone call ... always better than e-mail


Let us know what they say ...



Posts: 631

Joined: Fri Dec 19, 2003 1:01 am

Location: Wisconsin, USA

Post Wed Sep 06, 2006 5:37 am

I have the name and phone # of the guy who does the electro plating and machining to restore the races in a hub. He charges around 150.00 for the service so it is usually not practical economicly unless the hub is rare and valuable, like the pre 40 hubs. Email if you want the # and I will search my coffee cans for it.

Chuck Sumner

Post Tue Jul 14, 2009 1:44 pm

Re: Rear wheel hub needs machining for 42 WLA

I had a macheinest bore out the old race and make a new one out of a good grade of stainless, freeze the new one, heat hub, and press in race, then when cool, finnish race to take standard rollers. I have been riding it for over 5 years and see no noticable wear on replacement race

Chris Haynes

Posts: 2673

Joined: Wed Jul 05, 2000 12:01 am

Location: Los Angeles, CA

Post Wed Jul 15, 2009 11:11 pm

Re: Rear wheel hub needs machining for 42 WLA

Ya don't need to make races. Sportster Male rod race fits the big side and 45" Male rod race fits the small side. You need to ID grind the old races out. OD gring some material off the outside of the new races. chill the races in the freezer. Warm the hubs and press them in. Lap to STD. and rebuild the hub.

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