Fag bearing preventive maintenance should pay attention to matters of anomaly analysis

To fag bearing equipment preventive maintenance, and peripheral parts replacement operation were removed when the bearing to check, need in order to determine whether a time bearing parts can be used again and record the usage of good from bad. Carefully investigate and record the bearing and the appearance of being removed. In order to explore the residual amount of investigation and lubricant, after sampling, to clean the bearing well. Second check bearing raceway surface, rolling surface and cooperate with the surface condition and wear conditions of cage with and without damage to watch the race and abnormal situation especially the running track. Judge bearing can use again, to the extent of the damage in considering bearing, machine performance, importance, and operation conditions, such as inspection period to decide later. Test results, if found damage and fag bearing abnormal situation, please according to the bearing damage phenomenon to find out the reason, formulate countermeasures. In addition, the test results, there are some defects, if the bearing can't use, need to replace new bearing. 一个。 Inner and outer ring, rolling body, to keep any of them are cracks and debris. b。 Inner and outer ring, rolling body any one strip. c。 Raceway surface, guard, significant injury of roller. d。 Maintains a badly worn or loose rivet badly. e. Raceway surface, rust and roller has a scar. f。 Had a remarkable indentation rolling surface, rolling body and make a mark. g。 Inner ring diameter or outer diameter on the creep. h。 Discoloration of overheating. 我。 Sealed bearing grease sealing and dust cover breakage to serious. Fag import bearing failure is often the case in the process of operation, so you don't have a cow. Malfunctioned, judgment and processing is the key. Today we explain common breakdown and the method of bearing. 1. Bearing temperature is too high, when the agency is running the installation of bearing parts allowed to have a certain temperature, when the hand touch body shell, should not feel hot as normal, conversely indicates that bearing temperature is too high. The cause of the high bearing temperature are: lubricating oil quality does not conform to the requirements or metamorphism, lubricating oil viscosity is too high; The assemble tight ( Inadequate clearance) ; Bearing assembly too tight; Bearing race in internal rotation shaft or housing; Too much load; Bearing cage or rolling body fracture, etc. 2. Bearing noise rolling bearing in the work to allow running noise slightly, if you have any abnormal noise or excessive noise or sound, suggests that the bearing failure. Cause noise of rolling bearings is more complex, one is the bearing inner and outer surface wear. Due to this kind of wear and tear, damage the bearing and shell, bearing and shaft cooperate relationship, lead to axis deviation from the correct position, when axis at high speed movement produces sound. When the bearing fatigue, its surface metal flake, also can produce sound make bearing radial clearance increases. In addition, the bearing lubrication, forms the dry friction, and bearing broken etc all make abnormal noise. Bearing wear loose after kuang, maintains a looseness damage, also can produce sound fag bearing damage.