rippinbyu

Hello,
need a 31 spline axle for type O housing.

Thanks!
Chad

70_442

I have a pair for $200 + the ride.

jcdynamic88

excuse me if i'm mistaken,but those look 1970 style bearings and 28 spline axles

70_442

I think you are correct. I will have to count the splines to confirm. They definitely came from a 70. Sorry for the confusion.

ROCKETMAN269V

I have two NO$ axles, as well as a couple of used ones. Email me direct: drolds1@bellsouth.net. Thanks, Bob.

rippinbyu

Awesome. Just dropped you an email. Is there a minimum thickness needed on the axel shaft beneath the bearing? The machinist that removed my old press in bearings said the driver's side was off by a 1000th and would likely fail with the new bearing??

ROCKETMAN269V

That is correct; the axle shaft diameter has to be sufficient to create a "press fit" for the inner bearing race. It is common for the early type "O" axle bearings to spin on the axle and wear a groove in it to where the bearing is loose.

Billyaxe

Hey Rocketman, you said “the axle shaft diameter has to be sufficient to create a "press fit" for the inner bearing race. It is common for the early type "O" axle bearings to spin on the axle and wear a groove in it to where the bearing is loose.”
My question is, is it okay to live with that groove and the bearing being loose? —Billy

Fun71

I think yes, it is fairly common for those early sealed bearings to spin on the shaft after so many years (I had that happen to mine). I don't think it is specific to O-Type rears; any that use a similar sealed bearing could be susceptible.

And no, it is not OK to drive with it like that. The axle shaft will move around and the oil seal will be distorted and leak oil, which can get into the brakes. Oily brakes make stopping difficult.

Billyaxe

Thanks. So I did the right thing replacing my original axle. This is what it looked like. —Billy

Run to Rund

If you don't find good used axles, or just want stronger ones, I believe some aftermarket companies such as Moser, Strange, Mark Williams can make up a set.