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pressing in cartridge bearings?(5 posts)

pressing in cartridge bearings?bludoggy
Feb 2, 2003 12:00 PM
pulled my cartridge bearing hub (front) apart this morning to remedy some nasty grittiness/grinding sound. I now realize that I didn't have to rip the whole thing apart, but as it was, I soon found myself having to press the cartridge bearings back into the hub. Not having a 'bearing press' I just grabbed an appropriatly sized socket and started a-whackin' (carefully) with a rubber mallot. seemed to work pretty well, but have I caused irreparable harm? Is this the way that most people do this or what?
the right way...C-40
Feb 2, 2003 2:58 PM
Just be sure that whatever you use applies pressure to the outer bearing race (largest diameter), not anywhere near the center bore and you should be OK.

Check out

This site has lots of info on the construction of typical cartridge bearings.
re: pressing in cartridge bearings?Crankist
Feb 3, 2003 10:59 AM
With care as C40 noted below, a better way for the home repair person to approach this is to pull 'em in w/ fine-piched threaded rod, caps to roughly match outer race diameter.
but; how would you get the second one in?bludoggy
Feb 3, 2003 8:41 PM
the first one, i can visualize, but then the axle goes in, and then the second bearing. how do you set up the rod, cap etc with all this other junk in the hub?
Steve Dally
but; how would you get the second one in?arc
Feb 5, 2003 5:29 PM
i hope your axle is hollow. you get a thin threaded rod and put it through your axle. get some nuts to spin on the ends of the rod. put the bearing over the axle and put a spark plug socket over the bearing (you might need an extra nut as a space, the size of the outer bearing race) . put the small nuts on both ends of the rod, maybe with a washer or two on the spark plug side. turn the nuts toward each other. this pushes on the bearing and the axle on the other end, pulling them together. make sure the alignment is good to start the bearing in straight. check to see how far you've pressed the bearing in occasionally.