Due to the design requirements of ball bearings, the balls are evenly distributed on the track to achieve optimal load distribution and rotational stability, misalignment can lead to uneven load on the ball bearings. When the balls cannot be evenly distributed on the bearing, some balls will carry too much load, while others may only carry less load or not at all. This uneven load distribution can lead to premature wear of bearings, increased friction and heat, and may reduce the service life of bearings.