Cleaning, maintenance and damage judgments for SKF deep groove ball bearings

1, bearing cleaning
When removing SKF deep groove ball bearings and repair, first record the bearing appearance,in order to confirm the residual amount of lubricant. After checking the lubricant used for sampling, wash bearings. Use ordinary gasoline, kerosene as a cleaning agent.

Bearing cleaning divided into rough cleaning and sperm washing. Respectively place on the bottom of the metal net in a container so that SKF deep groove ball bearings do not directly touch the dirt in container. When rough cleaning, if you rotate the bearing with dirt will damage bearing rolling surface, so you should notice. In cleaning crude oil, use the brush removing grease, adhesive, and then turn into sperm washing.

Sperm washing, is rotating side SKF deep groove ball bearings in cleaning oil while carefully cleaned. In addition, cleaning oil regularly to keep clean.

2, bearing maintenance and judgment
In order to determine if removed SKF deep groove ball bearings can be used, check after bearing washed clean. Carefully check the raceway surface, rolling surface, the status of the mating surfaces, cage wear, clearance increases and injury due to decline in accuracy, exception.

With separation bearing like SKF deep groove ball bearings, you can check outer ring raceway and rolling body respectively.

Larger bearings cannot be rotated with hands, note to check the rolling element and the Raceway, cage, flange surface appearance.

Whether the bearing can be used is depend on bearing damage, mechanical properties, and the operating conditions, and determined during the next maintenance. However, if have the following defects,SKF deep groove ball bearings can no longer be used, must be replaced:
(A) any cracks or gaps on inner ring, outer ring, rolling elements, cages;
(B) fracture on the rings or rolling elements;
(C) a significant wound on raceway surface, rib, rolling body;
(D) cages wear significantly, or rivets relaxation significantly;
(E) rust, wound on raceway surface or rolling body;
(F) serious creasing and marks on raceway surface or rolling element;
(G) clear the inner circle diameter or outer ring outside diameter surface creep;
(H) discoloration obviously due to thermal ;
(I) broken clearly of the seals or shields.