NTN imported bearings work view key

Source: Bearing network time: 2013-01-02

/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

After the NTN imported bearing equipment is completed; in order to check whether the equipment is correct; to check the work. The small machine can be rotated by hand; to recognize whether the rotation can be smooth. Check the project for the work caused by foreign objects, scratches and indentations; The torque is not stable due to poor equipment; the torque generated by the equipment seat is not stable; the torque is too large due to too small clearance, equipment error, sealing conflict, etc. If there is no abnormality, the power can be started.
Large machinery can't be rotated manually; therefore, the power is blocked immediately after the no-load start; the machine is idling; check whether there is oscillation, noise, whether the rotating parts can touch, etc.; after acknowledging that there is no abnormality; enter the power work.
Power work; starting from no-load low-speed; slowly progressing to additional work for the specified conditions. Check the items in the test work; whether there is abnormal sound, NTN imported bearing temperature change, smoothing agent leakage or discoloration, etc. Found abnormal; should work intermittently; view the machine; if necessary, remove the bearing to view.
NTN imported bearing temperature; generally can be estimated according to the external temperature of the bearing housing. But the oil hole is used to directly measure the temperature of the outer ring of the bearing. The bearing temperature is gradually increased from the beginning of the work; generally the temperature is stable after 1~2 hours. Bad bearing equipment; temperature will rise sharply; abnormal high temperature occurs. The reasons are such as excessive smoothing agent, too small bearing clearance, poor equipment, excessive conflict of sealing equipment, etc. High-speed rotating occasion; NTN imported bearing layout, smooth method Picking faults is also the reason.
The transition sound of NTN imported bearings is viewed with a stethoscope, etc.; there are strong metal noise, abnormal sounds, irregular sounds, etc. to clarify abnormalities. The reasons are poor smoothness, poor accuracy of shaft or bearing housing, bearing damage, foreign matter intrusion, etc.
NTN bearing temperature; generally can be estimated according to the external temperature of the bearing housing. But the oil hole directly measures the temperature of the bearing outer ring more accurately. Bearing temperature; gradually rise from the beginning of the work; generally 1~2 hours after the temperature is stable. If the bearing Poor equipment; temperature will rise sharply; abnormal high temperature occurs. The reasons are such as excessive smoothing agent, too small bearing clearance, poor equipment, excessive conflict of sealing equipment, etc. High-speed rotation; NTN imported bearing layout, smooth method selection Faults are also the reason.
The transition sound of NTN bearing is viewed with a stethoscope, etc.; there are strong metal noise, abnormal sounds, irregular sounds, etc. to clarify the abnormality. The reason is poor smoothness, poor accuracy of shaft or bearing housing, bearing damage, foreign matter intrusion, etc.

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