1, quality of riveted or welded cage
Main observation on the rivet head deviation, skew, relaxation, lack meat or eyelid, welding is properly seated, solder is too big or too small, there is any loose weld or solder stuck rolling caused by excessive phenomenon. Above is our focus on checking part of the FAG bearings during an inspection, in addition to other parts of the above checks, such as typing of poor quality, such as illegible, damaged, shall be considered defective and serious persons may refuse acceptance.
2, from the skin and collapse
Both local and loose substrate with metal defects, and often exist to varying degrees around it and decarbonization phenomena of poverty or carbon, materials easy caving, Dent or wear, on the life of FAG bearings and precision at a disadvantage.
3, rust, dark-skinned and pitting
The latter two are easy to store moisture and dirt defects, most likely to develop into rust. While rust is leading to poor installation, sources of early wear and fatigue, severe corrosion that FAG bearing scrap.
4, all kinds of mechanical injuries
Such as Strip, scratched, bruised, scratches, etc will have bearing installed adverse, lead to unbalanced load and stress concentration, causing rotation accuracy of FAG bearings and use declining life expectancy.
5, various crack
Cracks such as raw materials, forging crack, cracks and grinding crack of heat treatment and so on, in the operation of those cracks in bearing, becomes a source of stress concentration and the rapid expansion, resulting in rupture of the bearing, FAG bearing life and great job security. In fact, for important uses of bearings, bearing factory on 100% magnetic or radiographic inspection of its constituent parts.


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