as always, just grab the 6202, from the local supplier, yep, the c2 standard abec 5 type...
oh, i can pop seals....
its only a bearing...
c2 tolerance? abec 5...i know what im talking about and the guy at the shop knows it too!
now... go into the shop, and get what you really need, a c3 tolerance, for main crank bearings. good luck finding them. dont worry about abecs for now, though if you can find and afford abec 11... save them for a better engine perhaps
its advisable, before going all silly and replaing bearings
and thinking that any old bearing with the same numbers will do, to do some research.
learn what those numbers really mean.... for instance, one kind of bearing suits cold conditions and one suits high temperatures... some are designed for steel housings and shafts, some are toleranced for alloy housings... as irrelevant as it sounds. some are only good for low speeds and minimal duty cycle. some will take high rpm at full load all day every day...
the shop only stocks what is common, easily obtained, and will realise a profit.
thats all im saying. theres more to bearings that meets the eye and the hearsay on a forum board is not the place to get educated about them!
while sealed bearings with one popped out do work(for the crank), the seals place far more load on the engine than normal crankshaft seals. they are designed to retain the lube for their useful lifetime, whilst preventing ANYTHING from getting in, and the added friction is tolerated. they arent really ideal but i do use them myself. they suck up power. best to use plains with seperate seals.
i know. oem bearings cost so much! and they look the same! but there are differences, sadly
and you have to wash ALL the grease out of them first.
btw...never had any issues with stock bearings in china engines....
so why bother at all?