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Selection and control 1, shaft and bearing chamber tolerances
SKF bearing press in the bearing should be flexible rotation not block a sense of. If there is obviously the rotation is not flexible, indicates that the axial size is too large, the tolerance to cut. Such as SKF import bearings pressed into the shaft by hand after turning has obvious "rustle" sense, the tolerances of the shaft may be too large or the roundness of the shaft is not good. So in the control of the shaft and housing tolerances to control the roundness, many domestic manufacturers only on tolerance control, no control of roundness.
2, SKF bearing assembly
Because the SKF bearings are precision products, such as improper assembly is easy to SKF bearing raceway damage, resulting in SKF bearing damage. Bearing assembly shall have the special mould, can not be beat, after pressing shaft when only small force, force pressure when only circle circle. The assembly by pneumatic or hydraulic press, the upper and lower mold to outside in the horizontal state, if tilt will cause the bearing channel due to the stress damage, and make the SKF bearing guide ring.
3, to prevent the assembly of foreign body
SKF bearings are easily mounted to the rotor dynamic balance when the dynamic balance of iron filings into bearing interior, so it is best to install bearing dynamic balancing. Some manufacturers in order to convenient assembly, the assembly of some oil or grease lubrication effect in SKF bearing interior paint, but the operation is often difficult to control, if the oil or grease in the bearing chamber accumulates more, in the bearing rotates easily along the shaft into the bearing internal. SKF bearing room is not the best oil or grease, such as non coated not to control may not be in the SKF bearing indoor accumulation.
4, paint, rust prevention
Paint rust is characterized by multiple sealed type motor, the motor voice in the assembly is very good, but in some time within the warehouse, the electrical noise change greatly, remove SKF bearings with serious rust. Many manufacturers are considered to be before the bearing problem, through our advocacy, motor factory is now aware of the main insulation paint problems. This is mainly because the acidic material insulating paint volatile out of the formation of corrosive substances under certain temperature, humidity, the bearing channel corrosion leads to SKF bearing damage. The problem can only be good choice of insulating varnish, and after drying ventilation for a period of time after the assembly.
SKF import bearing life is related to the manufacturing, assembly, use are closely related, must be in each link all ready, can enable the SKF bearing operation in the best state, so as to prolong the service life of the bearing SKF.

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