>>1356237>no expertneither am I
>a little knowledge is a dangerous thing>Are industry tolerances for hubs really that bad compared to moto industryI'm not all that familiar with the bearings for motor cycles, I assume the ball bearings are larger or more numerous
for bicycles the bearings are supplied over tight when new and wear into tolerance over time
and the low end Chinese ball bearings chip easily
especially the head set suffers from shock loading that can dent the bearing race .esp is worse on non suspended or rigid frames
along with the way most bike riders turn only a little left and right - this carves little curved grooves into the bearing race/cup on the bottom of the steering tube
>please do tellball bearings are good enough for the most part,
and have low friction while having enough radial and lateral strength
>sealed bearingssome of the newer bikes have them
water ingress and rust is the only problem there if the owner does not keep some lubrication on them (maintenance free lmao)
but I deal mostly in older 1990s type bikes down to 1960s types
they have caged ball bearings and many are badly damaged by the time they reach me
mainly there are chips in the balls and dents in the raceway
or in very bad case the lock nut has not held the bearing cone close enough to the bearing cup
so one or more of the balls can get stuck still and get a huge flat spot ground into 1/4 or 1/2 the ball
