Bearing after the installation is complete, in order to check for proper installation, to run checks. Small mechanical hand rotation, to confirm whether it rotates smoothly. Check project are caused by foreign bodies, scar, indentation to seize up, due to poor installation, installation process arising from the negative moment of instability, due to installation errors, clearance is too small, seal friction torque arising is too large, and so on. If there was no exception to start the power running.
Large machinery cannot be rotated manually, so no load starting immediately after cutting off power, machinery idle, check for vibrations, noise, contact rotating parts, and so on, after confirmed without exception, into the power running.
Power operation, starting from no-load speed, slowly raised to the conditions set forth in the rated operation. Things to check for in the commissioning, any unusual changes in sound, bearing temperatures, lubricant leakage or discoloration, and so on. If exceptions are found, should immediately suspend the operation, check the mechanical and, if necessary, to remove the bearings check.
1. shaft fixing
Rely on bearing inner ring shoulder and interference to achieve axial fixation.
Applies to fixed at both ends of the structure.
Simple structure, small overall dimension.
2. elastic ring fixed
Bearing inner ring shoulder and lock nut to achieve axial fixation.
Can bear not bi-directional axial loads.
Axial structure of small size.
3. lock nut fixing
Bearing inner ring shoulder and lock nut to achieve axial fixation. Stopping collar with locking, safe and reliable, suitable for high speed, heavy load.
4. end thrust washer fixed
Bearing inner ring shaft and shaft retaining ring to achieve axial fixation. Shaft-end retaining ring screws fixed to the shaft end. Captive screw locking device.
For shaft ends should not be cut, threaded or space is limited.
5. sleeves fixed
Rely on the radial size of the adapter sleeve in the hole is on the shaft by compression clamp, to achieve the bearing inner ring axially.
Turn the tone with a stethoscope to check bearing, has a strong metal noise description sounds, abnormal noise, does not rule exceptions. Due to poor lubrication, shaft or housing poor accuracy, bearing damage, such as foreign bodies penetrated.

 


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