Pulling a sealed bearing ?
10-17-10, 08:19 PM
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Pulling a sealed bearing ?
I have a Suntour Greaseguard front hub with 6001 sealed bearings and I am trying to remove them with a new Enduro bearing puller.
The puller goes into place but when I apply pulling force, it slips out. I have tried wedging something in the puller to keep it in place. Any suggestions or tricks to getting this to work ??
The puller goes into place but when I apply pulling force, it slips out. I have tried wedging something in the puller to keep it in place. Any suggestions or tricks to getting this to work ??
10-17-10, 08:38 PM
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Find a screwdriver small enough to pass through the opposite bearing and into the jaws of your puller. Tap it down gently to wedge the puller open, when it's tight it'll push the bearing.
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10-18-10, 03:38 PM
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If you can not get the puller to work, you might be able to fabricate a tool to remove the bearing. Find a length of tubing that fits loosely inside the bearing. Cut one end twice, at 90 degree angles. Spread the cut strips outward slightly, and then push the tool through the bearing until it just clears the inside edge of the bearing. Tap on the uncut end of the tool to remove bearing. This is the way a headset removal tool works, and I have had good luck removing multiple headsets this way, so it should translate well to this, I think. Good luck!
10-18-10, 07:56 PM
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Got this to work, thanks! Pushing by hand wouldn't do it so I supported the hub on the other end and tapped on the screwdriver with a hammer and it came right out. I put in two new Phil bearings and have a like-new hub - very cool.
10-19-10, 06:56 PM
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Ok - one more question. Reassembling the hub and there is the bushing piece with a shoulder that threads onto the axle and fits inside the ID of the bearing. The fit between the bushing and ID is fairly snug but it is necessary to use some locktite to prevent the bearing ID from spinning on the bushing?
10-20-10, 07:58 AM
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I have the identical hubs so I'm familiar with their design. The threaded bearing support (analogous to a cone or a typical hub) should be snug to the inner race to ensure proper support, but shouldn't need locktite. You want it to be free to come back out next time you field strip the hub. If you need a tighter fit build it up slightly with a light coat of paint which should be the most you need, and let it dry before assembly.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
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