KOYO Bearing Installation And Disassembly
Some applications require frequent disassembly and installation to ensure that they can be inspected and repaired in their place. KOYO bearings such as cylindrical bearings, needle bearings, and tapered bearings that can be installed separately on the inner and outer rings are very suitable for this occasion. The tapered hole type self-aligning ball bearing and self-aligning roller bearing, with the help of the shaft sleeve, also simplify the installation procedure.
After the installation of KOYO bearings is completed, in order to check whether the installation is correct, a running inspection is required. Small machinery can be rotated by hand to confirm whether the rotation is smooth. The inspection items include poor operation due to foreign objects, scars, and indentation, uneven rotation torque due to poor installation, and poor processing of the mounting seat, excessive torque due to too small clearance, installation error, sealing friction, etc. . If there is no abnormality, power operation can be started. KOYO bearings 6208 ZZ C3 online , pls click here :
Because large machinery cannot rotate manually, immediately turn off the power after no-load start, perform inertial operation, check for vibration, sound, and whether the rotating parts are in contact, etc., and confirm that there is no abnormality before entering the power operation.
The power operation starts from no load and low speed, and gradually increases to the rated operation under the specified conditions. The items to be checked during the trial operation are whether there is abnormal noise, the temperature of the KOYO bearing is transferred, the leakage of the lubricant and the discoloration, etc. If abnormalities are found during the trial operation, the operation should be stopped immediately, the machinery should be inspected, and the bearings should be removed for inspection if necessary.
KOYO imported bearing temperature inspection is generally inferred from the appearance of the shell. But using the oil hole to directly measure the temperature of the outer ring of the bearing is more accurate. The bearing temperature starts to rise gradually. If there is no abnormality, it usually stabilizes after 1 to 2 hours. If the bearing or installation is defective, the bearing temperature will rise sharply, resulting in abnormally high temperatures. The reasons are such as too much lubricant, too small bearing clearance, poor installation, and excessive friction of the sealing device. In the case of high-speed rotation, the wrong choice of bearing lubrication method is also the reason.