it is easy to cause the ring gear Vibrations.

If the ball is not in the disk before starting the car, samarium magnet then when the ball once to start easily lead to broken teeth pinion.A third reason for broken teeth: there radial and ring gear runout，We install the ball mill ring gear, because of the mill ring gear is bolted on simplified its face runout is distributed by the circumference of the ring gear，The screw holes with the top wire adjustments. When the ring gear runout not meet the requirement, in the long run after the ball, loose bolts, ring deformation, magnet tubes it is easy to cause the ring gear Vibrations.