Tapered roller bearings and high speed bearing installation

Bearings must be installed in a dry, clean environment conditions. Before installation should check carefully with the axis and the shell surface, convex shoulder end, grooves and connecting surface processing quality. All mating surfaces connected, must be carefully cleaned and remove the burrs, not casting surface must except sand net residual.

Bearing installation should be preceded with petrol or kerosene to clean, dry after use, and ensure good lubrication, bearing the general use of grease, oil lubrication can be applied. With grease lubrication, should be used without impurities, oxidation, rust, extreme pressure properties of high quality lubricating grease. Amount of grease filled bearings and mobile crane bearing  box volume of 30%-60%, not too much. With grease has been filled with good sealing structure of double row tapered roller bearings and water pump bearings, users can directly use, no further cleaning.

Bearing installation, must be applied equally in the circumference of ferrule end face pressure, will press into the ring, not directly strike the bearing end face want first tool, so as not to damage the bearing. Small amount of interference in the case, can suppress at room temperature with the sleeve bearing ring face, beating with a hammer sleeve, through the sleeve will be pressed into the ring balance. If the high-volume installation,high speed bearing use of hydraulic machine. Indentation, should ensure the outer end face and shoulder shell surface, the inner end face and shoulder axis end pressing, does not allow a gap.

When the amount of interference is large, can be installed using oil bath heating or inductor heating method of bearing, the heating temperature range of 80 ℃ -100 ℃, the maximum should not exceed 120 ℃. At the same time, the application of nuts or other fastening bearing appropriate methods to prevent the bearing cooling, the width direction of contraction and between the ring and a shaft shoulder generation gap.

Single row tapered roller bearing installation of the final clearance should be adjusted. Clearance value should be used according to different conditions and with the amount of interference to determine the size and specific. When necessary, should be tested to determine. Double row tapered roller bearings and water pump bearing factory has adjusted well clearance, no further adjustment during installation.

Bearings should be installed after the rotation test, first hand rotation shaft or bearing box, without exception, they have no power to load, low speed operation, and then gradually increase as the functioning of the rotation speed and load, and to detect noise, vibration and temperature, abnormal, should stop and check. Test normal operation before delivery.‍