Bearing quality inspection techniques

Bearing quality inspection techniques on our inspection bearing, must under the lights of the astigmatism, carefully observe the appearance and cracks, and other important parts of the bearing, often appear the situation has the following five: 1, peeling, and fold the two flaws of local combined with matrix metal not firm, and its surroundings often exist in different degrees decarburization or poor phenomenon of carbon, the material easy caving, the indented or wear, bearing life and accuracy very unfavorable. 2, keep the riveting or welding quality mainly observe whether the rivet head deviation, skew, relaxation, lack of meat or double-fold eyelid, welding position is correct, solder joint is too large or too small, ever welding not firm or excessive cause jam phenomenon of roller. 3, rust, black and pitting black and pitting is easy to store water and dirt of defects, most likely to develop into rust. The corrosion is caused pollution sources, the installation of non-performing, early wear and fatigue serious corrosion will make the bearing damaged. 4, all kinds of mechanical wound abrasion, cut and bruised, crushed, can cause adverse bearing installation, causing partial load and stress concentration, caused by rotation precision and service life. 5, all kinds of cracks, such as crack raw material, forging, heat treatment of crack crack and grinding cracks, the crack in the process of bearing after operation, will become a source of stress concentration and expanded rapidly, cause bearing is broken, and great influence on bearing life and job security. In fact, for important use of bearings, bearing factory has been to 100% of their component parts magnetic or radiographic inspection. The above information is the bearing quality inspection technique, hope you good good study!