Originally Posted by
Charles Wahl
OK, Jim, two questions:
1. I'm under the impression that
a) "sealed bearing" just means a cup-and-cone setup with some sort of wiping (rubber) seal, and
b) what you've pictured above, a bearing that can't have balls disassembled from races without destroying it, even though the seal may be removable, is a cartridge bearing.
Am I wrong about that? Is a cartridge bearing one where the seal can't be removed?
2. Do you dry out a hub that you clean that way completely before relubricating? Maybe in the oven at 130 degrees F (hard to do with a wheel, but a light bulb or careful heating with a hair dryer might help).
1a. 'Sealed bearing' could mean alot of things. Do sealed mechanisms like 'O' rings or labarynth seals fall under the 'sealed bearing' heading? I dont think they do. In my opinion the only type of sealed bearings are the ones pictured in this thread and that would be ones of the cartridge design. Everything else would be of the sealed mechanisn type and thus a pseudo sealed bearing.
1b. Correct. Whats pictured is this thread is a sealed cartridge bearing and in my opinion its the only true type of sealed bearing. In my opinion sealed bearing and catridge bearing are synonymous.
2. Yes, I dry the bearing out with compressed air but a hair dryer or would work equaly well.