See the groove worn in the end of these cages. The cages are tight and the rollers are measuring fairly okay at .498 and .496.
Are these bearings usable with this groove? What likely caused these grooves?
I have one on one end like that, and no I didn't notice right away so don't know where it was on the axle, it will go to the inside on rebuild.
Use it... it'll roll forever. That happens when the axle keyway slides in too far.
I always put the best bearing with the end of the rollers with the largest diameter on the outboard side of the axle.
: ^ )
I can't remember off hand what causes that but I can tell you it's very common. Go ahead and use them.
Agree use it might shorten the key a tad on that side
Just my two cents worth, This only happens on the inner bearings. It is caused by the woodruff key that locates the gear on the axle shaft. If the key protrudes beyond the gear, (toward the bearing), it will cut a groove in the bearing cage. It might weaken the bearing a bit, but I've used several without problems. The outer bearings are too far from the hub/axle key to cause any interference. If the outer bearing has a groove cut in it, you have a MAJOR problem with the hub/axle fit!! Or someone put a bearing in the outer position that was formerly in the inner location. OK I think I've beat this dead horse sufficiently. Happy motoring all!!
Thank you all for the responses. I plan to use them. I agree with you, William, that these were probably swapped back and forth over the years and an inner became an outer at some point.
In the #2 photo: is it an illusion or do those stake/punch marks protrude into the cut area? If so someone definitely was in there and staked it after it got "groovy". Can we get something more definite about where it happens? So far in and out both.
YES! That's it. Thanks!
Look at the nice chamfer on the edge of the retainer.