Ceramic bearing installation method and matters needing attention - using the correct ceramic bearing installation method, which can effectively exert the advantages of ceramic bearings and improve the life of the ceramic bearing.
A, ceramic bearing installation method
Installing a bearing, must in the end face smooth move bearing ring on equal pressure, for the ring into, it is strictly prohibited to use hammer bearing heavy objects such as direct percussion ring width in order to avoid damage.In addition, if one side of ring (such as cylindrical) pressure, which tends to cause composite bearing creasing or scratches on the surface of the rolling, must not use, especially to the separated type bearing installed on the shaft in the bearing box at the same time, as is shown above, with the shim will be balanced on inner and outer pressure.
Second, with the ceramic bearing
(a) amount of interference
The rolling bearing inner ring and outer ring is fixed on the shaft or the bearing box.When subjected to load, so that the ring and bearing box matching surface radial shaft and does not occur to the relative movement and the direction of rotation.The relative movement will cooperate to occur on the surface of the wear and friction friction corrosion or cracks, such as to cause the bearing, shaft and axle box of damage, and then wear powder mixed with bearing internal, lead to dysfunctional, abnormal heat or vibration and other reasons.
Way of fixed bearing or bearing box in the ring on the shaft of the mating surfaces flow interference amount to cooperate for the best, the thin ring with a class of equal load distribution on the circumference of a circle, does not affect the bearing load capacity.But with static class USES the interference fit, in addition to easy installation and dismantle bearing not free side bearing adopts the release bearing, unable to turn to move, so it cannot be used for all occasions, installation related questions please contact with our company specific.
(2) cooperate with choice
Cooperate with choice according to the following principles in general.
According to the nature of bearing load direction, as well as the inner and outer circle which direction, each ring class is divided into rotary load on the load, static load and the directional load.Rotation under load and not the ring should take interference fit of directional load (interference fit) under static load of the ring, class filter to cooperate or movable fit (clearance).
High load bearing or vibration, under impact load, increase its interference, with hollow shaft, thin wall bearing box or light alloy.Plastic bearing box, also needs to increase the amount of interference.
Requirements on high rotation accuracy, high precision bearing should be used in, and to increase the size of the shaft and bearing box precision, avoid too much interference.If the interference is too big, may make the shaft or the geometry precision of bearing box affect the geometry of a bearing ring.To damage the bearing rotation accuracy.
If separation type bearing (such as deep groove ball bearing) inside and outside the circle is interference fit, the bearing installation, disassembly is very inconvenient, had better be the one side of the inner and outer circle dynamic cooperation.
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