Bicycle Mechanics - Spindle Spin
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How freely should the spindle in my cartridge bearing bottom bracket spin?
07-09-08, 03:48 PM
Very Smooth with minimal resistance. No side to side play in the spindle. bk
Should it be able to continue to rotate on its own after I spin it?
07-09-08, 04:28 PM
Just my opinion.
Not unless it has a crank on it... there isn't enough mass to keep it spinning without a crank.
If you have a crank on it, then yes, it should keep spinning. However, I don't recall ever having a BB that would continue spinning without a crank attached.
07-09-08, 05:03 PM
If you're comparing to a cup and cone BB, then it spins less freely. Will definitely not continue spinning on its own without crank. With crank, yes, although in my experience, not much.
07-09-08, 06:20 PM
The viscosity of the grease and friction from the balls in the race will prevent it from spinning on its own. My Phil Wood BB won't do it without a crank on it. Sure is smooth, though. bk
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