02
Apr
First make sure to wear a pair of safety goggles. I do not recommend using any metal tool unless it was designed for this application only wood because if the inner surface of the hub gets scratched it is pretty much.
In fact only very rarely do we find a shop that does it any other way.
How to remove bearing race from hub. Andy Phillips shows how to remove a stuck bearing race from the hub shaft in just a few minutes. In many case when pulling a hub the inner bearing race can. How remove a wheel bearing race off a hub - YouTube.
Raw video if how I take bearing races off a hub without a torch. The parts delivery guy must have thought i. My problem was figuring out a way to get the bearing races out of the aluminum hub.
The stock Triumph hubs used tapered roller bearings on the outer end of the hub the side you see here and needle bearings on the inner end. Because those needle bearings are prone to disintegrating allowing the axle to saw itself apart against the hub whoever. Next position the old bearing race on top off the new race.
Use a hammer to install the new race into the hub. Once the old race gets close to the bearing hub stop the installation so the old race doesnt get stuck. Complete the race installation by used the large punch.
It depends on the bearing race either inner or outer race since you would need different bearing race removal toolsets. For the outer race you can use a slide hammer puller to get it out. A hammer and chisel can do the same too.
Inner races are more complicated and the only easy way is to use the bearing separator and puller set. Races are difficult to remove but since you have one out already you can go into the opposite side from the race still in the hub and use a wooden rod to drive out the race. I do not recommend using any metal tool unless it was designed for this application only wood because if the inner surface of the hub gets scratched it is pretty much.
The bearing races on a trailer hub like the Trailer Hub Assembly part 8-258-5UC1 are removable they are not built into the hub. I am including a link to a FAQ page on wheel bearings races and seals. Also a link to a video of removing and reinstalling bearings races and seals.
It will show starting at the 2 minute and 5 second mark how. In the last few years weve come to realize that the tried and true method to remove the bearing races in your aluminum hubs is with a good old fashioned hammer and punch. In fact only very rarely do we find a shop that does it any other way.
So whats the problem with a hammer and punch you ask. Knock out the inner race cage and balls assuming your NOT using the bearing over again. Crank your MIG welder up to medium heat and run a quick bead part way around the inside of the outer race carefully avoiding the casting.
Then if required weld a couple small 516 nuts 180 degrees apart inside to the race also. A trick for removing them I was taught by a mechanic friend over 30 years ago is to remove the castle nut and washer slide the drum off with bearing and race intact turn the drum around and slide it back on the spindle place the washer back on screw the castle nut back on just a few threads grab ahold of the drum and give it a good yank. An engineering shop should have a blind bearing puller.
Run a line of weld around the inner race as it cools it will shrink and the race might come out Cut the race with a dremmel. If you have pressed the wheel bearing off the hub and you want to reuse the hub you need to remove the inner wheel bearing race. Use an air chisel to remove the inner wheel bearing race.
First make sure to wear a pair of safety goggles. Then place a blunt chisel bit into the recess and remove the race. Needed to get the bearings in my front hub replaced before this weekend on my Bontrager Race Disc wheel went to do it myself only to realise I didnt have the right tool to get the bearings out.
Removing the race can be done by placing the tip of a punch or a small screwdriver against the edge of the race and tapping it out with a hammer. Be careful not to damage any of the metal around the race or scratch the area where the race is installed. Turn the rotor hub over and use a shop towel to wiper the race mounting surface clean from grease.
You dont want grease to be between the race and the hub surface because it will lubricate the race which is a press fit. This will cause the race to become lose and ruin the rotor. Above with two holes behind the bearing race 180 degrees apart we can use a tapered punch and a 3 pound hammer to remove the race.
Alternating between the two holes we beat the stubborn race out of the hub. The back side of the June 1910 1913 hub showing how the punch is able to push on the bearing race.