Originally Posted by
onbike 1939
... The fact remains that most (if not all) hubs and particularly Shimano hubs, are usually received with the cones too tight and do require adjusting in order to attain smooth running and I seem to remember you disputing this.
I have never disputed the idea that new bearings should be adjusted and I have no idea how you ever came to that conclusion. I have argued all along that over tightened bearings need to be adjusted even if common practice nowadays is that they come over tightened from the factory. Downtube is the person who feels it's not necessary and has taken the stance that over tightened bearings are acceptable and that it actually has merits despite logic to the contrary and he has attempted to support this argument by saying that if they come from the factory this way then that should be OK...
Originally Posted by
downtube
... In all seriousness I believe the hub manufacturers are trying to minimize problems, and slightly over tightening creates less problems than anything else ( over the long term )...
Originally Posted by
downtube
... Over tightening is always an issue, I was given a logical explination on this by a friend. He said that most end customers never adjust anything, hence over tightening is better....since after it loosens with normal wear it will not be too loose...
Kindly reread this thread.
Originally Posted by
BassNotBass
... Tightening fasteners to the appropriate torque is the way it should be done because that doesn't stress the threads nor will they loosen. When it comes to bearings, adjusting them properly, not over tightening, is the professional way it's done. When bearings are over tightened of course they'll eventually loosen, after the rider wastes energy overcoming the drag, because the mating surfaces become pitted and irregularly worn and the whole bearing is prematurely damaged...