Jiaxing bearing small make up to a visual inspection of rolling bearings

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. The appearance of the rolling bearing can be under astigmatism lamp inspection, from the appearance inspection items are mostly related to the precision of the bearing, using performance and life expectancy, so check carefully, do not think that this is not important. Appearance inspection in the focus of the attention has the following several: ( 1) Various crack, crack, such as raw materials, 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, causing 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. ( 2) All kinds of machinery, such as abrasion, cut and bruised, crushed, can cause adverse bearing installation, causing partial load and stress concentration, caused by rotation precision and service life. ( 3) Rust, black and pitting, the latter two are 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) Peeling and fold, the two kinds of defects 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. ( 5) Cage riveting or welding quality, mainly to observe whether the rivet head deviation, skew, relaxation, lack of meat or 'double eyelids', correct the position of the welding, solder joint is too big or too small, for welding not firm or excessive cause jam phenomenon, roller pressure slope, as some cage, caulking and chisel mouth whether the quality assurance, rolling body can not fall out of the cage and can turn freely, these points such as undesirable, would cause bearing noise and small rotation accuracy is reduced, is likely to keep apart, cause mechanical failure or accident. From the above, 1) To ( 5) Check if you have found, the same bearing is not acceptance. Another poor quality such as typing, such as blur, damaged, defective products should be think, severe cases can be no acceptance. Moreover, surface of bearing assembly rules should be visible to the naked eye burns ( Annealing traces) 。 If you are interested in the above HRB bearing the author introduces the information or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source