Teach you the right choice KOYO rolling bearing installation method

When installing KOYO bearing, shaft circle shall be checked and verticality of shaft centerline. Method is to fix the dial gauge box shell end face, make the table touch the top of the head of the ring raceway on bearing axle bearing, and observe the dial gauge pointer, if the pointer deflection, axial circle and not vertical shaft centerline. Box shell hole deep, also can use extended dial gauge head test. Bearing installed correctly, when installing the bearing seat, shaft ring shall be checked and verticality of shaft centerline. Method is to fix the dial gauge box shell end face, make the table touch the top of the head in KOYO bearing axis ring raceway on bearing, and observe the dial gauge pointer, if the deflection of the pointer, shaft ring and shaft centerline is not vertical. Box shell hole deep, also can use extended dial gauge head test. 1, keep the frame riveting or welding quality: mainly to see whether it has offset the rivet head, 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. More than a few we check focusing on part of the rolling bearing, in addition to the part of the inspection, the other poor quality such as typing, such as blur, damage, should think the defective goods, also can refuse acceptance. 2, peeling and folding: these two kinds of 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 abrasion, to KOYO bearing life and accuracy very unfavorable. 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, all kinds of mechanical wounds: 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. 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, causing bearing is broken, and great influence on KOYO 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. Bearing installed correctly, the seat can automatically adapt to roller rolling, to ensure that the rolling elements located at the top and bottom ring raceway. If installed backwards, bearing not only don't work properly, and the matching surface will badly worn. Due to axial ring and seat and the difference is not obvious, the assembly should be extra careful, do not make a mistake. In addition, the seat of rolling bearing and the bearing hole there should also be between 0. 2 - 0. 5 mm clearance to compensate parts processing, installation error caused by inaccurate, when the bearing ring during operation center offset, the clearance can be adjusted to ensure the automatic, the avoidance of friction, make its normal operation. Otherwise, will cause bearing severe damage