Why does the SKF bearing make a squeak when it is running?



The sharp screams of SKF bearings are common occurrences and are characterized by:
A. SKF bearings have large radial clearance and are easy to produce.
B. Usually appears in grease lubrication, oil lubrication is relatively rare.
C. As SKF bearings are reduced in size, they often occur over a range of speeds.
D. Usually occurs in winter.
E. Its appearance is irregular and unpredictable, full of fat content and function, installation, and operating conditions.
The radial clearance of the SKF bearing and the use of a shallow structure to prevent the raceway of the outer ring, which can reduce noise.