Lateral-g Forums - Budget '69 Camaro Track Car

You have a Baer hub which is basically a factory GM drum hub.

I remember a few years back...90's someone had a first gen hub that ran a larger outer bearing. I tried searching around but can't seem to find it here. I believe it was Herb Adams could be wrong.

Tobin makes a billet hub but I am unsure what bearings are used.

Ron in SoCal

05-29-2014 10:02 AM

Quote:

Originally Posted by Ron Sutton (Post 553096)

Hey Ron,

Yes, in that bearing you're referring to, the outer bearing is larger than the inner bearing & it is stronger. This makes the hub rated higher overall. But the weakest bearing is always the bearing that fails, regardless if it's on the inside or outside. The small one in the Z51 bearing is the same size as before, rated at 1060#.

As I mentioned in a previous thread, the bearing engineer I work with said this bearing will wear quicker than the big bearing stuff we're used to racing. So if you check the wheel/hub play & it starts to show excessive, simply replace it. If that happens often, then maybe you need a stronger spindle/bearing/hub assembly. If not, you're probably fine.

:cheers:

Makes perfect sense Ron. Thank you Sir :thumbsup:

rickpaw

05-29-2014 10:06 AM

Quote:

Originally Posted by Vince@MSperfab (Post 553122)

Tobin makes a billet hub but I am unsure what bearings are used.

Tobin uses stock replacement Timken bearings for his hubs.

Vince@Meanstreets

05-29-2014 10:25 AM

Quote:

Originally Posted by rickpaw (Post 553124)

Tobin uses stock replacement Timken bearings for his hubs.

Thanks Tu, I wasn't sure.

Leroy Rochester

05-30-2014 10:08 AM

Quote:

Originally Posted by Vince@MSperfab (Post 553122)

On my '67, Maeco used either second gen hubs or SCP hubs on a custom spindle that had the big outer bearing. At the time, Mike really felt that was critical on the race applications. I don't think I've ever seen a first gen throw a shoe though, but I'm sure it's been an issue here and there.

Vince@Meanstreets

05-30-2014 10:57 AM

Quote:

Originally Posted by Leroy Rochester (Post 553363)

Personally I haven't witnessed any failures on properly maintained cars. Most where due to neglect, lack of grease and improper free play.
Im not sure how long Gaetano went on his very first set before coming to me but there was a layer of dark grease at the outer bearing. I believe it was right after the 341. If he had a season on them its doing good. So far his bearings look fine but they normally get serviced 3 times a year.

Leroy Rochester

05-30-2014 11:09 AM

I was actually going to come back and mention that... I've seen a fair number of crazy failures of all types at HPDE events, but not on the vintage race cars.

We had to change the seals on the caliper pistons every session when I ran the J56 4 piston brakes on the front because I didn't have a set of the sexy insulated pistons (which is why we went to the CNC brakes fairly quickly!)...

I didn't mean to say that I hadn't seen it, to dismiss it. Just an off the top of the head comment and absolutely related to the level of maintenance that goes into running a heavy, high power race car.

Vince@Meanstreets

05-30-2014 11:47 AM

Quote:

Originally Posted by Leroy Rochester (Post 553377)

Yeah I got that. It maybe an overlooked service part. I am more concerned about spindle failure than bearing failure. He is running a lot faster now.

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