The appearance of the non-standard bearing inspection and use device specificity analysis

Non-standard bearing concreteness appearance inspection and use of the plant sources: bearing | last updated: - 2020 09 - The appearance of the 24 non-standard bearings how to check 1, all kinds of machinery, such as abrasion, cut and bruised, crushed, can cause adverse bearing installation, causing partial load and stress concentration, falling rotating precision and service life. 2, 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. 3, all kinds of 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 is expanding fast, 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. 4, peeling and folding, the two defects of local combined with matrix metal not firm, and its surroundings often exist in different degrees decarburization or poor phenomenon, carbon material easy caving, the indented or wear, bearing life and accuracy very unfavorable. 5, maintains a riveting or welding quality, mainly to see whether it has offset the rivet head, skew, relaxation, lack of meat, or 'double eyelid, correct the position of the welding, solder joint is too big or too small, for welding not firm or excessive cause jam phenomenon of roller. The use of non-standard bearing device specificity analysis dynamic pressure bearing, non-standard bearing cavity layout depth is suitable for high speed light load of machine tool spindle; Such as M1432 cylindrical grinding, grinding MGA6025 things Kong Shihuan saves the cavity depth dynamic pressure bearing: applicable to medium speed load of machine tool spindle; Such as MG1432 cylindrical grinding, MM7150 flat grinding, M1080 centerless grinding, grinding roll and dowel pin type internal reaction dynamic pressure bearing: suitable for load and speed change size hydrostatic bearing spindle cone: suitable for high speed grinding head spindle system ( Such as 2110 circular grinding head) Channel grinder, electric spindle, and inside.