Re: Grease seals on camper trailer wheels

Posted by RayP(MI) on October 19, 2005 at 18:21:13 from (64.25.199.4):

In Reply to: Grease seals on camper trailer wheels posted by RayP(MI) on October 19, 2005 at 17:08:53:

Sorry, no pictures, had to put trailer back together - wife needs it to carry luggage into a rabbit convention in Indianapolis this weekend. Ok, guys, throw out everything you know about wheel bearings - took this thing to my NAPA dealer, and he says that he's never seen anything like it... (And he's a counter man of many years experience!)
First of all, the axle shaft is not tapered. When you remove the castellated nut, you find a lock washer, and a flat washer. Then WHOLE bearing assembly slides off the axle. There is a sleeve in the center that bearing rides on... Whole hub, bearing and the sleeve come off as a unit. There appears no way to remove seals and thus the bearing from the hub, or even get inner sleeve out. Grease seals look like they're installed backwards, with lips pointing outward, and a groove which would hold a small coiled spring in the groove. I've seen seals which had similar springs, that were apparently to keep inner lip of seal tight against shaft. These seals have the groove, and the tiny spring on the outside, where they are exposed to the elements, thus rust and corrosion. Hubs have a pressed in Zerk fitting, and can be greased with conventional grease gun. These are not like any conventional wheel bearing ai have seen either - Don't know if it has balls, or rollers or what...

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