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#1
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Pressing BB30 bearings
So, I use a headset press and just cinch it down with modest pressure, making sure the bearing is against the C-clip. This time, though, one cartridge feels smooth but makes noise, like I've got a bad bearing. I use the Park installation bushings, so I would assume I'm not loading the inner bearing race, and if I were crushing the out race, it would bend the C-clip. No? I may have damaged the bearing when I knocked-in the crank -- which is a super-tight SRAM BB30/PF30. It measures right, but its really tight and probably a 30.05 diameter -- or some fraction over 30mm that I haven't bothered to determine with my sloppy analog micrometer. I have to tap the crank in with a rubber mallet with lots of grease. That's where I might have gone wrong. Or maybe I just have a noisy bearing that isn't shot (again, it spins smoothly to the touch).
-- Jay Beattie. |
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#2
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Pressing BB30 bearings
delicate ?
freeze the crank if not wong square one then reducing a slip fit is refrigidero HEAT COOL COOL (heat) always. not often, always overlooked the unit you bought is prob nit self healing as shipped anyway. -6% |
#3
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Pressing BB30 bearings
place a pipe on it n listen
place a pipe on it with earplugs in n place pipe on forehead n listen evaluate noise with other noise makers. |
#4
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Pressing BB30 bearings
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