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Okay this is weird but in putting this back together it came to my attention that there is no lock ring on my new BB. Even more odd is that I took the old one out to compare, and it doesn't have one either. I dug through the old parts box, and the new parts box and none to be found. Apparently it came this way, and I was riding it this way, but is it like, bad? Is it going to fall all apart on me?
Cartridge bottom brackets don't have lock rings. The threaded cups have 18-20 internal splines. Bottom brackets with separate spindle, cups, and bearings do need a lock ring or you'd have bearing falling out on the ground in the first 10 miles. Post a picture for us if you're not sure.
Sheldon Brown has pictures of cup-and-cone vs cartridge bottom brackets here.
Then there are the new oversized, integrated, threadless BBs (like BB30). What bike and crankset do you have?
I think you're right, it doesn't need one. Come to think of it I seem to recall that same notched look on my old MTB. There are only two parts to it. One big old chunk that has the spindles and a threaded side, and another little piece that threads in. I have no clue what it all is, came off probably a 2004-2005 Specialized Dolce. Unless they kept the silver bar tape on the bike in later years, then it could be newer. It's a Specialized crank set, that's about all I know. Was part of my $115 ebay score for the full component set, except brakes *sniffle*
That's a cartridge bottom bracket. The spindle, cups, and bearings are all sealed inside. The threaded parts holds it in the frame and have nothing to do with the bearing adjustment.Quote:
Originally Posted by smurfalicious