Should my rear hub have this chamfer on the face that meets the outer flat roller bearing? It seems to be newly cut as there is a rough sharp edge around the outer lip. Also it seems to fit nicely on the inside of the outer race of the bearing.... possibly causing my bearings to fail! Should I replace this hub?
No that looks pretty worn to me. These are pics of mine I just took for you . There is a slight rounding to the edge but not like yours mine are from a 79.
Chamfer or not, I can’t think why it would trash bearings. Have you got the spacer in place? (Those splines could do with a wire-brushing, btw )
The spacers were all in place.... there wpukd be too much lateral movement of the outer race .... eating into the hub.... so the bearing outer has nothing to sit in.... This is the bearing
That is probably a missing circlip on the inner ball bearing allowing the whole thing to move in and out- the circlip takes the cornering forces, if its missing the whole shaft will work in and out. See the dark blue bit here..
Of couse if the circlip has chewed its way out its replacement hub carrier time. If its just missing, the hub will survive ..
Nope, circlip is there, just had to go out to screwfix for circlip pliers. I think movement has been outward eating into the hub
To what? Spacer looks ok, it's the same one that was on before I changed bearings previously. This is the third time in 4 years I have changed bearings!
If you've had to change them that often is there an underlying problem? I don't know what is supposed to be there, perhaps check on the microfiche info Best of luck Andy
Got a new hub on order from the bay of E, the face that meets the inner sleeve of the outer bearing is severely worn, causing a little too much travel in the outer race of that bearing! Will be sorted by Wednesday, hopefully!?
If its going in too far then either the outer roller bearing is installed too far out or the spacer is the wrong width. When the stack goes together the inner sleeve of the roller bearing should be well outside the bearing race - VW obviously knew the inner ball bearing assembly would have some axial play as it wore. So they made the roller bearing sleeve wider than the bearing to allow for a bit of in and out movement. Something is wrong if the hub is hitting and chewing the rollers, its not the outer bearing. I assume that you have changed the inner bearing on each of those four occasions too ?
