The gap of the labyrinth seal is too small (friction with the shaft); The teeth of the lock washer are bent (touch the bearing and cause friction); The position of the oil slinger is not suitable (it touches the flange cover and friction occurs); There are pits on the steel ball or roller (caused by hitting the bearing with a hammer during installation); The bearing is noisy (with external vibration source interference);
The bearing is heated and discolored and deformed (caused by the use of a spray gun to heat and remove the bearing); The shaft is too thick and the actual fit is too tight (causing too high bearing temperature or noise); The diameter of the seat hole is too small (causing the bearing temperature to be too high); The bearing seat hole diameter is too large, and the actual fit is too loose (the bearing temperature is too high, and the outer ring is slipping); The bearing seat hole becomes larger (the bearing seat hole of non-ferrous metal is enlarged or enlarged due to thermal expansion); The cage is broken;
Rusty bearing raceway; Steel ball and raceway wear (unqualified grinding or product bumps); Ring raceway is unqualified (problem from the manufacturer). Keep the original packaging and do not open it arbitrarily. If the packaging is found to be damaged, it must be opened and carefully cleaned and re-oiled. The relative humidity of the storage room cannot exceed 60%, and the temperature difference cannot be too large. The bearings in the original packaging can be stored for several years. Sealed bearings or bearings with dust covers, after long-term storage,INA Bearings Manufacturers the lubrication characteristics of the grease filled in the bearings may be reduced.
The storage room should also be anti-vibration and shaking. Bearings not stored in the original packaging should be properly stored. It is strictly forbidden to put the bearings together with corrosive things to prevent corrosion and pollution. When storing large rolling bearings, they can only be placed flat, and the sides of the inner and outer rings are best supported. If stored upright, the inner and outer rings and rolling parts are heavier, and the inner and outer ring walls are relatively thin, which may cause permanent deformation.
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