Checks should be carried out in a flood of INA bearings, bearing the appearance of careful observation, cracks and other parts.
1, 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 accuracy of bearing life and a disadvantage.
2, cage's riveting or welding quality, main observation on the rivet head deviation, skew, relaxation, lack meat or "double fold ', welding is properly seated, solder is too big or too small, are there any loose weld or weld caused by excessive stuck scroll bar reflects. Above is our checks focused on checking part of the INA bearing, 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.
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 rust bearing scrap.
4, all kinds of mechanical injuries, such as Strip, scratched, bruised, scratches, etc will have poor INA bearing installation, lead to unbalanced load and stress concentration, causing rotation accuracy and use declining life expectancy.
5, all kinds of cracks, 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, great on INA bearing life and 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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