Any tricks for getting the bearings out of the front rim?

I searched and could not find any info.
Thanks in advance!

Any tricks for getting the bearings out of the front rim?

I searched and could not find any info.
Thanks in advance!

Heat + gravity

so if you pour enough liquid nitrogen onto the bearing, the cold will make it contract.

then just give it a little tap and presto. bearing is now dust.

Tried a heat gun, hammer and socket. No movement. I may need to take to a shop.

Tried a heat gun, hammer and socket. No movement. I may need to take to a shop.

http://faq.ninja250.org/wiki/Replacing_the_wheel_bearings

http://www.dansmc.com/wheelbearing.htm

Anyone know if a press can be used or if the wheel tapers on the inside?

Anyone know if a press can be used or if the wheel tapers on the inside?
Pretty sure a slide-hammer style bearing puller is what you want. Harbor Freight has one that I've heard is adequate for occasional use.

Heating up the wheel should help.

When it's time to install the new bearings, put the bearing in the freezer for a while and heat up the wheel. The thermal expansion/contraction difference will make it a lot easier to install.

Pretty sure a slide-hammer style bearing puller is what you want. Harbor Freight has one that I've heard is adequate for occasional use.

Heating up the wheel should help.

When it's time to install the new bearings, put the bearing in the freezer for a while and heat up the wheel. The thermal expansion/contraction difference will make it a lot easier to install.

I've looked at puller after puller at HF and haven't seen one that looked appropriate. Which one?

there isn't much lip to get blind bearing pullers on the inside with. i've never had any luck without tapping it out from the opposite side

What I don't get is how heating the wheel hub supposedly expands the chamber the bearing fits into. Expands the metal? Sure. I get that. At the atomic scale, the atoms expand and, thus, so does the material, but that wouldn't make the chamber expand as I understand it.

The way I visualize it is that it only helps if the aluminum is somehow magically only expanding outward from the bearing and, thus, widening the hole/loosening the fit. In reality, I would expect it to expand in ALL directions which means it would also expand in, putting MORE pressure on the bearing (especially considering that the bearing has also expanded outward however little). A heated ring would increase in outer diameter but the inner diameter would only increase to make room for the circular expansion (it doesn't just expand in/out). A wheel hub has enough material everywhere else that I don't see that phenomenon applying.

I don't doubt that it does make it easier, but is that really why? Could it be that the metal is simply softer and conforming to the forces you apply? If so, then it may cause you to lose more aluminum with the steel bearing than you would have otherwise.

when you heat both metals up (bearing and the thing its touching) they expand even from the inside and push on each other, slightly compressing the touching surfaces into each other. when they cool, they contract and theres a bit of a gap until the metals smoosh back together from other compression and oxidation and crap. the amount it moves is not very much but with such tight tolerance, just a little bit makes it loose enough to free up a bit



......maybe

Took mine to the dealer, $60.00 this included mount an balance of new rubber.

I bought a wheel bearing puller to get mine out. $70 one time charge. Now I can do any bike I ever need to.