How to reduce motor bearing fault 1

How to reduce motor bearing fault?

Reduce motor bearing fault mainly control the supply of goods quality and improve bearing selection, strengthen oil management, according to installation process standard installation bearing, strengthen bearing running state monitoring and tracking management and improve the bearing operating condition etc. It is these methods are introduced in detail.

Control the supply of goods quality and improve bearing selection

For critical load motor bearings, often choose famous brand bearing. Buy bearing, purchasing department from supply sources, in quality and price two aspects to carry out comparison shopping, choose good reputation, qualification, into the size of the suppliers, once selected, it is not easily change agent, from the source to eliminate inferior, counterfeit bearing into.

Selection is very important, once happened many selection problem. Some motor just installation is put into operation, drive side bearing overheated, inspection found that not grease, installation, load and bearing quality problem, but bearing radial clearance chosen is too small. As a

Y200L2 - type 2, 37 kw motor, SKF bearing

6312 bearing. The original bearing radial clearance C2, clearance is less than the ordinary type, motor load side bearing temperature up to 96 ℃, bearing clearance re-election C3, the motor is put into operation, the load side bearing temperature drop had 58 ℃. The motor rated speed of 2890 r/min, bearing inner ring temperature rise rapidly, inner ring expansion, ball friction increase, cause bearing overheating. Bearing clearance code have CN, C2 and C3, C4 and C5, should be combined with mechanical load characteristic choosing appropriate clearance, cannot ignore drive mechanical characteristics.