To determine whether the removed bearing can be reused, bearing wash after the inspection, carefully check the raceway, the raceway with the state of the surface, cage wear, the increase in the bearing clearance and the presence or absence of dimensional accuracy decrease injury, abnormal. Non-separable ball bearings, the inner ring with one hand and the level of support the rotating outer ring to confirm whether smooth.
Spherical roller bearings and other separation-shaped bearing rolling element, the outer ring raceway were examined.
Large bearings because they can not hand rotation, pay attention to check the rolling elements, raceways rather keep the rack, wall surface appearance, the higher the importance of bearing greater the need for careful checking.
The reusable judgment, is to consider the degree of bearing damage, mechanical properties, the importance of operating conditions, to Save the overhaul period. However, if the following defects can no longer be used, must be replaced with new self-aligning roller bearings:
(a) the inner ring, outer ring, rolling elements, the retainer on any one of a crack or gap;
(b) rings, rolling bodies on any one of a fracture;
(c) raceway, significantly hurt the card on the wall, rolling body;
(d) significantly cage wear, or rivet a significant relaxation;
(e) raceway, the rolling body rust injured;
(f) the raceway, rolling on a serious indentation and hit marks;
(g) the inner ring inner diameter surface or outer diameter surface significantly creep;
(h) the discoloration caused by heat and obvious;
(i) sealed grease bearings, seals or dust cover damaged significantly.


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