Bearing installation: bearing installation must be carried out in a dry and clean environment. Before installation, inspect carefully the mating surfaces of the shaft and Housing, the ends of the shoulder, the grooves, and the machining quality of the connecting surfaces. All mating surfaces must be carefully cleaned and deburred, and casting surfaces must be sand-free. Before installation of bearings should be cleaned with gasoline or kerosene, dry after use, and to ensure good lubrication, bearings generally grease lubrication, can also be used oil lubrication. Grease Lubrication, should choose no impurities, oxidation, rust, extreme pressure and other excellent performance of grease. Grease filling for bearing and bearing box volume of 30%-60% , should not be too much. Double row tapered roller bearing with seal structure has been filled with grease, users can be used directly, not in the cleaning. Bearing installation, must be in the ring face on the circumference of equal pressure, the ring pressed, not to use tools such as hammer directly percussion bearing face, so as not to damage the bearing. In the case of less interference, the sleeve can be pressed at room temperature at the end of the ring, Hammer Hammer the sleeve, through the sleeve will be balanced press into the ring. If a large number of installation, hydraulic press can be used. Press in, should ensure that the outer ring end face and Shell shoulder end face, the inner ring end face and shaft shoulder end face pressing, do not allow a gap. When the interference is large, can use oil bath heating or induction heating bearings to install, heating temperature range of 80 °c-100 °C, the maximum can not exceed 129 °C. At the same time, the use of nuts or other appropriate methods to tighten the bearing to prevent the bearing after cooling the width of the direction of shrinkage and cause the ring and shaft shoulder clearance. The clearance of single row tapered roller bearings shall be adjusted at the end of installation. The clearance value should be determined according to the different use condition and the size of the fit. If necessary, a test shall be carried out to determine. Double row tapered roller bearings in the factory has been adjusted clearance, installation does not need to be adjusted. Bearing installation should be carried out after the rotation test, first used for rotating shaft or bearing box, if there is no abnormal, then the power for no load, low-speed operation, and then gradually increase the rotation speed and load, and detection of noise, vibration and heating, if an exception is found, it should be stopped and checked. Only after running test is normal can it be put into use.
Post time: Jul-14-2021