Could you tell me how to remove the ball bearings in the middle of the trolley wheel?
If the shaft rust or damage, the use of cloth or file trimming, then use socket a diameter greater than the diameter of the axle bearing against the bearing sleeve will be installed, percussion.
Remove the cotter pin out, if it is a round nut is screwed nut;Pull the wheel down with three claws or two claws, and remove the bearings as well;
If the hammering process is very difficult, there is no forced operation to avoid damage to the axle or bearings. Bearings can be placed in the oil bath heating, so that it inflated, and then installed when it is more relaxed. It should be noted that the oil temperature is not too high, so as to avoid the decrease of the annealing strength of the bearings.
