Motor bearing on motor products system network problems, separate talk about bearing obviously is not science, especially about the bearing chamber of late planning, processing, installation and use are very crucial factors. About the planning of the bearing chamber selection and requirements of low coat of the bearing and the bearing interior diameter cooperation interference will not occur, but the gap can't big. About the basic series motor, many machine manufacturers specifications and this article introduce bearing interior diameter of the public servants see the table below. Bearing heated work clearance than before use, to reduce the degree of different state of temperature is not consistent, different raw materials will be corresponding different reduction is. In order to prevent the bearing outer ring spinning in the bearing chamber (The run laps)Axial gap, bearing housing components accumulated by bearing outer ring should be moved to the end cover or bearing sets in, namely the bearing outer ring should be stuck bearing inner and outer cover, about flameproof motor, the gap should be less than zero. 2mm。 Low bearing chamber will try to stay away from, the rotor winding, ventilation and heat dissipation is better. About the motor with inner loop ventilation, if there is end bearing temperature on the high side, should try to make after cooling air blowing in the first bearing. For heat dissipation, choosing smooth bearing grease, should not end with as far as possible to choose two bearings. Low smooth bearing place related to the smooth parts should be designed can contain plenty of smooth fat, and make smooth grease excretion of excess. For example with bevel & other; Jilt oil pan & throughout; Waste fat from the bearing can be left out of the bearing chamber into the oil chamber cover. About the high speed, large power motor, to deal with bearing heating can choose thin oil slick. 'Easy to tear open outfit. Related parts in motor planning, should try to make the bearing first the device was introduced into the bearing chamber, then people stand seam allowance end cover, to avoid device damage the bearing; Apart, bearing inner cover placed open tool space shall be maintained. Low temperature monitoring devices, but the alarm temperature according to the embedding location choice of temperature measuring element, buried in any orientation is the highest temperature should not be near to the allowed temperature bearing, such as ordinary bearing is 95 ℃. Cut the other countermeasures to bearing system from low bearing shoulds not be too big, too much for shaft deflection added to speed up the damage of bearing. High low motor center should be low. One is work center of gravity low smoothly; 2 it is device work, caused by thermal expansion center high change is small. Tall in 400 at the centre of the motor, at room temperature devices, debugging qualified, high fever after loading work center held up to 0. 1 -0. 3 mm, if the equipment can't drag for high, then held up or less than this value, the bearing will bear the extra force, will inevitably lead to speed up the damage. Better rigidity, low motor itself in the process of the work do not occur or near resonance. Low bearing seal is better. The protection grade of motor bearing inner and outer cover to meet the requirements of practical application environment. About the larger motor, there should be a way to prevent shaft current, avoid because of its corrosion and speed up the damage of bearing.
