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Home > News > Precautions for installing high-speed angular contact bearings
Precautions for installing high-speed angular contact bearings
2018-10-20

When installing a high speed angular contact bearing, an equal pressure must be applied to the circumference of the end face of the bearing ring. Do not directly hit the bearing end with other tools such as a hammer to avoid damage.

In the case of small interference, the end face of the bearing ring can be pressed with a sleeve at normal temperature, and the center of the sleeve is struck with a hammer to uniformly press the bearing ring. The assembly force must never pass through the rolling elements to avoid direct hammering of the bearing rings. When pressing in, ensure that the end face of the outer ring and the shoulder end face of the outer casing, the end face of the inner ring and the end face of the shoulder are tightly pressed, and no gap is allowed.

When the interference is large, the bearings can be installed by a heating box, oil bath heating or induction heating. The heating temperature ranges from 80 ° C to 100 ° C and the maximum temperature does not exceed 120 ° C. At the same time, the bearing is tightened by a nut or other suitable means to prevent the high speed angular contact bearing form contracting in width direction after cooling, thereby creating a gap between the bearing ring and the shoulder.

The mechanical press or hydraulic press must be press fit with the assembly sleeve and ensure its level. If tilted, the bearing passage will be damaged by force and the bearing will produce abnormal noise. The assembly sleeve must be in full contact with the entire circumference of the end faces of the outer ring and the inner ring.