Front Disc Bearings seal help

[Mopar-Charger]

Just put some new discs on, and replacement bearings. I'm having a problem with the inner seal. When I have in on the dics are hard to spin and have some play if i try to rock them?

Without the seal, it works fine. Could I be putting the seal in the wrong way? Or Is this just how it is?

 

[Funship32]

Hmmm, I'd say something isn't right for sure. Unfortunately "some play" is a relative term so it is hard to say how much is too much. If it is rocking then I'd say, no, that's not right. Did you compare the old stuff to the new stuff? The seals should cause a little drag but I can't say I've seen them cause a LOT of drag. I'm almost wondering if your bearing race isn't seated all the way on the inner bearing and with the seal in, the bearing is binding up. At least that is what I would suspect.

 

[Mopar-Charger]

I was able to tighten the disc up so that there was not even a tick when you tried to rock the disc. When I did that, the rotor would spin forever (not literally). However, once I add the seal, it practically stops the moment i take my off and while spinning. I'm using the old seals from the old rotor set. I bought OEM rotors for my charger, so nothing has change. I'm using a new pair of the same bearings I had before.

 

[Coronet 14]

Why are you using old seals. Get new ones. When I put new rotors on my Coronet. I found that I was driving the seal in too far.

 

[Mopar-Charger]

I went and bought new seals, pressed them in and it all worked fine! Thanks.

 

[Funship32]

Congrats!

 

[RJRENTON]

Gentlemen,
Just a little caviet re the rotor seals......the cavity side of the seal should face the bearings. Also remember to lube the seal during installation. I use a synthetic wheel bearing grease, liberally applied to the cone bearing, forced into the rollers by hand. AN EXTREMELY IMPORTANT ASPECT IS BEARING END PLAY ADJUSTMENT. There should be a "slight" amount of end play.....how much???? I usually set the bearing end play at 0.002" to 0.003" while turning the rotor (or drum) in the normal running direction. Check end play with a dial indicator. Set the end play b4 installing the retainer nut and cotter pin. And NEVER rotate a
tapered bearing without lubrication. The end play is critical to compensate for thermal expansion. Zero end play MAY result in a bearing failure, usually the outboard bearing ..... and it usually fails catastrophically...... There will be a slight resistance (drag) due to the contact seal touchng the spindle.
Cheers,
RJ Renton

 

[440roadrunner]

I've always adjusted the bearings EXACTLY like the service manuals describe and have never had any problems.

I really "wish" for the old days when cars HAD these kinds of bearings and not the new sealed press on crap that the new FWD use