How to prevent and combat SKF bearing deformation problem of the installation process

In SKF bearing installation, each engineer most concern is how to correct operation, if the improper operation is likely to be the SKF bearing damage. Such as under the condition of high speed operation and high working temperature, should pay special attention to the matching of the rotating ring is too loose, to prevent the eccentric vibration, and the matching of the fixed ring is a gap, in order to prevent the ferrule deformation and vibration under load. The rotating ring burning interference quantity within may also should be made smaller. As long as to ensure that work under the temperature of thermal expansion effect, and under the maximum speed of centrifugal force effect, not cause peristalsis or sliding on the surface of the tight fit. Fixed ring size according to the size of the working load and SKF bearing, choose the smallest clearance fit or interference fit, too loose or too tight is unfavorable to keeping the original precise shape. Should not only precise calculation of rotating ring with the amount of interference, also to accurate calculation of the fixed ring with right quantity. Shaft and hole of the roundness and block shoulder perpendicularity to according to the corresponding precision of SKF bearing requirements. Keep frame assembly accuracy by dedicated assembly is milled to assure, can ensure the accuracy of the SKF bearing assembly requirements. Conditions for surplus with fixed circle take transgressions is suitable surface on both sides have high shape accuracy and smaller roughness, cause otherwise in installation and removal harder, in addition, also need to consider the influence of the spindle thermal elongation. Oscillating load and variable load on the cooperation should be equal to rotating load, too loose fit will result in mating surface damage. Relative to the loading direction of the ring with the shaft or hole, should choose transition fit or interference fit. Size can be made to SKF bearing work under load, the ring at the hole with the shaft or does not produce 'creeping' phenomenon on the surface for the principle. In the load is very light, or under the heavy load ring occasionally rotates at low speed, can choose transition fit, the shaft surface should have a higher hardness and low surface roughness. For heavy load, usually should be lighter than the load and normal load situations fit as tight. The heavy load, the interference should be. Using double angular contact ball bearing of the spindle in pairs, for the most part load lighter, its interference such as large amount, the amount of axial preload is its internal significantly larger, causing adverse effects. Using double row short cylindrical roller bearing of the spindle and spindle taper roller bearings, the load is opposite bigger, so its interference also relatively large. Sometimes the direction of the load and the size can't determine precisely, for example in high-speed rotating machinery, in addition to the direction of the rotor weight under fixed load, and rotating load caused by uneven quality, if the load is much bigger than the fixed load rotation, the synthesis load is still rotating load; And if the rotating load than fixed load, the synthetic load for oscillating load. Regardless of rotating load or oscillating load, SKF bearing the size and direction are constantly changing. In variable work condition, some ring by load when possible but rotating load, but the fixed load, and the oscillating load. This load is called variable load.