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FAG bearings on the bearing of rolling mill equipments maintenance, operation and peripheral parts change removed when stop check, the demand in turn discriminant time bearing parts can use and recording of again good from bad.
A. inner and outer ring, rolling body, confrontation one crack and presents the debris.
B. inner and outer ring, rolling body any split.
C. raceway and rib and rolling card significantly hurt.
D. confrontation serious wear or rivets loose ferocious.
E. raceway surface, rolling rust and bruises.
F. rolling, rolling a significant indentation and trace.
A creep of G. inner diameter of surface or outer diameter.
H. thermochromism ferocious.
I. grease sealed bearings seals and shields to serious damage.
On the rolling control method for impact sound: appropriate reduction of radial clearance, the use of reasonable structure and materials with cage bearings compliance.
The second is the rolling bearing raceway acoustic raceway and its control method is when the operation, the rolling element rolling and making a slippery continuous sound in the raceway surface, is a basic sound unique all FAG bearings are the. Bearings generally sound is rolling road sound with other sounds. The bearing seat more rigid, roller acoustic sound pressure level is low. Such as the radial clearance is too small, raceway acoustic sound pressure level and frequency with reduced radial clearance and increased dramatically.
Control of raceway acoustic methods are: the selection of bearing low noise bearings which waviness small, carefully select the use conditions. Rolling road sound often affects the entire mechanical noise, reduce the raceway can reduce the noise of the whole machine.
Finally the creak and control methods of imported bearings rolling creak metal friction sound cylindrical roller bearings are likely to occur in all cases of harsh, mostly in the larger models grease lubricated bearings, the grease base oil on the performance degradation is more easily occur rarely occurs in oil lubrication when the. In addition, more vulnerable in the winter, when under purely radial load, prone to big occasions in a radial clearance, and with different model sizes, easy to occur within a specific speed range, both continuous and intermittent. The outer ring raceway special processing methods can prevent creak appears, when necessary, can choose this kind of bearing, or appropriate reduction of radial clearance of bearings, using high performance greases and improve the rigidity of bearing matching parts.
But sometimes the axis dimension measuring diameter and rolling mill bearing seat hole imprecise or with the surface roughness does not meet the standard requirements, resulting in excessive interference fit, so that the bearing race is very pressing, resulting in radial clearance of the bearing itself is reduced, the FAG bearing rotation difficulties, fever, wear or death card, serious cause of crack and seat bearing installation.