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ReplyDeleteFAG B7012E.T.P4S.UL bearing
ReplyDeleteAfter the installation of NTN imported 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 it rotates smoothly. The inspection items include poor operation due to foreign objects, scratches, and pressure marks, unstable torque due to poor installation, poor processing of the mounting seat, excessive torque due to too small clearance, installation errors, and seal friction, etc. Wait. If there is no abnormality, power operation can be started.
Large machinery cannot be rotated manually, so the power is cut off immediately after no-load start, the machine is idling, check whether there is vibration, noise, whether the rotating parts are in contact, etc. After confirming that there is no abnormality, enter the power operation.
The power operation starts from the no-load 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 sound, temperature change of NTN imported bearings, leakage or discoloration of lubricant, etc. If an abnormality is found, the operation should be stopped immediately, the machine should be inspected, and the bearing should be removed for inspection if necessary.
NTN imported bearing temperature can generally be estimated based on the external temperature of the bearing housing. However, it is more accurate to use the oil hole to directly measure the temperature of the outer ring of the bearing. The bearing temperature gradually increases from the start of operation, and the temperature is usually stable after 1 to 2 hours.