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Who knows about cartridge bearings?(6 posts)

Who knows about cartridge bearings?Spoke Wrench
Mar 30, 2003 1:02 PM
I have a 105 headset that has a cartridge bearing that is completely frozen. I've heard guys talk about just buying an industrial bearing as a replacement. My question has to do with the fact that the two sides of the Shimano bearing aren't parallel. A section view through the bearing would be a trapezoid. Is that a bearing that I'm likely to find a replacement for? I'm not going to spend too much time trying to chase a replacement bearing down because a whole new headset only costs $25.00.
not an industrial standard...C-40
Mar 30, 2003 2:38 PM
Most standard bearings are specified by the O.D., the bore diameter and thickness. Never seen one that was not cylindrical.

Bearings are pretty cheap at They handle a wide variety. Another source is
not an industrial standard...russw19
Mar 30, 2003 3:02 PM
I just tried to look this up on Quality's website. They list the bearings for XT, Dura_Ace, Ultegra and that pair of bearings is $20 wholesale. They also list a set marked LX M563 1" cartridge bearings and they are $5.25 per pair. Those prices are wholesale.. most shops and mail order houses will be anywhere from 80% to 100% markup on them. So it's up to you to either take that bearing to a bearing shop and see if they can replace it cheap, or just replace the headset.

Do you have the URL for QBP?....nmdavet
Mar 30, 2003 3:40 PM
Do you have the URL for QBP?....nmrussw19
Mar 30, 2003 4:41 PM
it's a dealer wholesaler, so unless you have an account, you won't get into the site. It has a password and account number access. But it's

That's Quality Bike Products. Anyone who's ever worked in a shop knows them.. they are the midwest and east coast's biggest distributor. If you own or work for a shop, you can call them and they can help you out.

Catalog on-line at Harris CycleryRJF
Apr 1, 2003 4:13 PM
Sheldon Brown has at least a significant portion of the Quality catalog on his website. You can search it and order through Harris: