When the 3 Phase Induction Motor is working, the bearing may be deformed with the increase of the load, so that the inner ring of the interference fit may also become loose. Under the influence of rotating load, the inner ring may produce peristalsis, so the amount of interference depends on the load. The larger the load, especially when there is an impact load, the greater the amount of interference required.
Moreover, for different rotation and load conditions, the matching relationship of the bearing inner ring is different.
Under constant load, it is recommended to choose the tolerance according to the relationship between the interference of the rotating ring and the clearance of the stationary ring.
The inner ring rotates, the outer ring is stationary, and the load is constant radial. At this time, the inner ring bears of the 3 phase electric ac motor ’s rotating load, and the outer ring is the static load, such as the motor bearing driven by the pulley is of this type, it is recommended that the inner ring use interference fit, and the outer ring can use small gap fit.
The inner ring is stationary, the outer ring is rotating, and the load is constant radial. For example, the wheel bearing of the automobile is of this type, the inner ring of the bearing bears the static load, and the outer ring is the rotating load; It is recommended that the outer ring be an interference fit and the inner ring be a gap fit.
When the load rotates with the bearing ring, it is recommended to choose the tolerance according to the relationship between the rotating ring clearance and the stationary ring interference fit.
The inner ring rotates, the outer ring is stationary, and the load rotates with the inner ring. Such as vibrating machinery and vibrating screen, the inner ring bears static load, the outer ring is rotating load, it is recommended that the outer ring is interference fit, and the inner ring is gap fit.
The inner ring is stationary, the outer ring rotates, and the load rotates with the outer ring. Such as rotary crusher, the inner ring is rotating load, and the inner ring is static load, it is recommended that the inner ring is interference fit, and the outer ring is gap fit.
Post time: Aug-28-2024
