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Rolling bearing installation quality directly affects the bearing life. Incorrect installation is one of the main causes of early failure of the bearing, so the installation and cooperation of rolling bearings is also very important.

            First, with the meaning

            Rolling bearing with the inner ring and the shaft, between the outer ring and the shell. Rolling bearing with the general use of two ways, that is, with the interference fit and clearance with. It is preferable to use a gap fit from the viewpoint of bearing mounting and disassembly, but it is easy to produce a vibration or a slippage (or peristaltic) caused by a non-synchronized rotation between the rotating parts and between the stationary parts Lack of surplus caused by deformation after the bearing will produce a gap. If the slippage (or peristaltic) between the bearing and the shaft or the shell causes wear due to deterioration of the lubrication, the surface accuracy of the shaft or the shell is damaged. If the particles penetrate into the bearing will affect the performance of the bearing, The slippage (or peristaltic) will also produce high temperatures, so that the failure of the bearing to speed up.

            Second, with the choice

            1. General bearing with the selection principle

            (1) bearing inner and outer ring surface must support good, smooth.

            (2) The "rotary load" ferrule can not slide in the circumferential direction on the mating surface. But the fixed load of the collar can allow a slight amount of circular sliding, to slowly change its bearing area, so that the ring raceway surface uniform force.

            (3) When the non-separable bearings are used in the swing end, a small clearance fit should be taken on the mating.

            (4) the use of interference fit, the interference is not too easy, to meet the premise does not produce sliding should be reduced with the amount of interference. Interference is too large, one will reduce the clearance, two easy to cause the inner ring raceway surface tensile stress, thus affecting the normal use of bearings and life.

            (5) bearing is a thin-walled parts, and the manufacturing accuracy is high, therefore, with the bearing parts of the manufacturing accuracy, especially the geometric shape accuracy should match the manufacturing accuracy of the bearing.

           (6) with the choice, should consider the bearing installation and removal of convenience. The large amount of interference is not easy to install and disassemble, and the bearing installation and removal tools are relatively complex.


please contact sales@tanchin.hk for any inquiry
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