Wheel bearing

[nico13]

Hi all,
A question about the front wheel bearing, the outer front wheel bearing in my case is loose from the guiding ring.
Is this normal, as in the pictures the bearing is shown with the outer ring.
The ring is pressed in my wheel hub.

 

[eriknetherlands]

Dont know about the front, but same construction is present in the diff's main bearing. It seperates as well.

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[lloyd]

Hi all,
A question about the front wheel bearing, the outer front wheel bearing in my case is loose from the guiding ring.
Is this normal, as in the pictures the bearing is shown with the outer ring.
The ring is pressed in my wheel hub.
View attachment 50995 View attachment 50996 View attachment 50996

Having difficulty following your question. For clarity, the ring, you describe as being pressed in the hub is commonly described as a "race." If you are describing free movement or play between the roller bearings and the race, a certain amount is normal. Too tight (too much friction) and the assembly will not roll smoothly and the bearings will overheat and suffer premature wear. Too loose, and a different type of wear will occur, since the load on the bearings will not be uniform. Bearing wear can occur due to normal wear, contaminated grease, lack of grease, water incursion (especially if you drive through deep puddles), and improper installation or handling.

Suggest you remove clean your bearings in solvent and repack them with suitable grease and reinstall per the instructions below. If you are describing looseness of the individual roller bearings within their "cage," they too must have some play to allow free movement, but not too much. Compare your bearing with a new one and if yours is significantly worn, you should notice the difference. Excess looseness is obviously a major wear indicator, but there are other indicators that can be revealed when examining the bearings after they have been cleaned of grease. These problems can include metal that is blued from overheating or metal that is fatigued.

 

[nico13]

Thanks Lloyd and Erik,
I understand now that the race is not fixed to the bearing but pressed into the wheel hub and that the bearing is pressed to the race by the nut.

 

[BMW3.0CSi]

Reopening an old thread. I’ve been searching for some info about the front hub/wheel bearing replacement and this thread is mostly related to my question. I want to rebuild the hub and replace the bearings. But before I damage something I would like to ask if someone knows how to remove the so called ‘races’?

If I look inside the hub then it looks like there is a separate ring in front of the race. But it doesn’t look like you can take it out due to the casting of the hub (the ring I mean) While on the other hand there are 2 cut outs behind the races which are there on purpose to hit or push them out.
Or can you push out the race over the ring that is ‘in front of it’ as I state it here? I don’t see that ring in the schematics, I only see the nut, seal ring, bearing and hub casting, correct?

Thanks for advice

 

[eriknetherlands]

I've yet to pull my front end apart, so I haven't disassembled it myself.
But it could it be that that what you think are 2 seperate pieces, is actually 1 single piece?
Practically: regardless of what it is (part of), there's only one direction in which it can exit your hub...

I'd just smack it from behind with a hammer and a decent rod. You can start with some hard wood, if that doesn't work try steel. Start with light taps and work "around the clock", gradually increasing force untill it starts to move. The race is throw-away material anyway when replacing the bearings. As long as the "seat" of the bearing remains fresh, all methods are allowed.

 

[stphers]

See that little cut out in the bearing hub? There should be 2 at each end, a long slim punch and a BFH ( large hammer )and you punch them out working from side to side New ones I tap in with a hammer until they are flush with the hub, then use a large socket or something else that you can hit. Be careful about going in straight, PIA if you don't You will know when the race is fully seated Once you have cleaned the bearings in solvent, really blow them out, that old grease really gets stuck in there, then repack in new grease and I fill the inside of the hub with a fair amount of grease as well Don't forget to put the wheel seal in after installing the inner bearing. I tighten them up as I spin the hub, I tighten it up until the hub just can't move and then back off slightly so the hub starts to spin nicely. I do it this way because new grease has to pack itself in, this way, I don't have to readjust after a bit

Thanks, Rick

 

[BMW3.0CSi]

See that little cut out in the bearing hub? There should be 2 at each end, a long slim punch and a BFH ( large hammer )and you punch them out working from side to side New ones I tap in with a hammer until they are flush with the hub, then use a large socket or something else that you can hit. Be careful about going in straight, PIA if you don't You will know when the race is fully seated Once you have cleaned the bearings in solvent, really blow them out, that old grease really gets stuck in there, then repack in new grease and I fill the inside of the hub with a fair amount of grease as well Don't forget to put the wheel seal in after installing the inner bearing. I tighten them up as I spin the hub, I tighten it up until the hub just can't move and then back off slightly so the hub starts to spin nicely. I do it this way because new grease has to pack itself in, this way, I don't have to readjust after a bit

Thanks, Rick

Thanks for your advice, will give it a try!