Rear hub ball bearings - how many?
I just serviced my rear Shimano hub for the 1st time due to excessive play on the rear axle. I've had the bike (2008 Stumpjumper Comp) from new for about a year now. I found that there were only about 5 ball bearings either side of the hub (total about 10), although 1 or 2 may have droppped out whilst dismantling. Is this normal? I ended up replacing them with 9 bearings either side. The wheel now runs smooth and no play at all. Will running so few bearings in the hub wear out the cones prematurely? I cannot believe that so few ball bearings were in there originally.