Ceramic bearing installation methods and precautions

Ceramic bearing installation methods and precautions - use the correct method of installation of ceramic bearings can effectively play the advantages of ceramic bearings and ceramic bearings to improve life.

A ceramic bearing installation method

When installing the bearing, shall be applied to the traffic moving smoothly bearing on the periphery of the ferrule end face equal pressure to the ferrule is loaded, and other heavy non-direct hit with a hammer to avoid damage to the bearing ring face. In addition, if either one of the rings (for example cylindrical) into which tends to result in a composite bearing indentations or scratches, and must not use, especially the non-separation of bearings installed in the shaft to the bearing raceway when the box, as shown, the inner and outer rings with horn pressed into balance.

Second, with ceramic bearings

(A) the amount of interference

The rolling bearing inner and outer ring fixed to the shaft or bearing housing. When it is subjected to a load, so that the rings and radial shaft bearing housing mating surface and to the direction of rotation and relative movement does not occur. This relative movement will occur with surface wear, friction or friction corrosion cracking, so as to cause the bearings, shaft and axle boxes damage, abrasion powder and then mixed with the bearing, resulting in dysfunctional, abnormal heat or vibration and other reasons.

Fixed bearing on the way to the ring with a mating surface of the shaft or bearing box outflow amount of interference fit is the best, the thin-walled rings with class load equal distribution on the circumference, will not affect the bearing load capacity. But when you make use of static class with static coordination, in addition to removal of the bearing is not convenient to install outside the free side bearing separation bearing, unable to move to mobile, and therefore it can not be used for all occasions, specific installation issues, please contact me .

(Ii) with the choice

With the selection by the following general principles.

According to which direction the role of bearing the load direction, as well as the nature of the inner and outer ring rotates, the load on each ring rotational load is divided into classes, static load and not directed load. Bear the load of revolution and not to be taken as directed load ferrule interference fit (interference fit) to withstand static load ring, take lessons or filter with running fit (with clearance).

Load bearing large or withstand vibration, shock loads when its interference shall be increased, hollow shaft, thin-walled bearing box or light alloy. When the plastic bearing box, it must be to increase the amount of interference.

When required to maintain a high degree of precision rotation shall be using high-precision bearings, shaft and bearing housing and improve dimensional accuracy, avoid excessive interference. If the interference is too large, so that the shaft or bearing housing geometry Accuracy of geometry of the bearing rings. To the detriment of rotation of the bearing accuracy.

If the separation of bearings (such as deep groove ball bearings) interference fit inner and outer rings are used, the bearing installation and removal is very convenient, it is best to use a party moving with inner and outer rings.