When institutions, installation of bearing parts allowed to have a certain temperature, when the hand touch body shell, should not feel hot as normal, conversely indicates that FAG bearing temperature is too high.
The cause of the high bearing temperature are: lubricating oil quality does not conform to the requirements or metamorphism, lubricating oil viscosity is too high;
The assemble tight (
Plane bearing assembly too tight;
Bearing race in internal rotation shaft or housing;
Too much load;
Bearing cage or rolling body fracture, etc.
Plane bearing allows running noise slightly in the work, if you have any abnormal noise or excessive noise or sound, suggests that the bearing failure.
Cause noise of rolling bearings is more complex, one is the bearing inner and outer surface wear.
Due to the wear and tear, damage to the bearings and shell, bearing and shaft cooperate relationship, lead to axis deviation from the correct position, when axis at high speed movement produces sound.
When the bearing fatigue, its surface metal flake, also can produce sound make bearing radial clearance increases.
In addition, FAG bearing lubrication, dry friction, and bearing broken etc all make abnormal noise.
Bearing wear loose after kuang, maintains a looseness damage, also can produce sound.
1, bearing maintenance: for as long as possible in good condition to maintain the performance of the bearing was required to maintenance, repair, in order to prevent accident arrangement to ensure the reliability of operation, improve the productivity and economy.
To maintain the best conditions of mechanical operation of the corresponding operation standard, on a regular basis.
Content includes monitor running status, supplement or replacement of lubricants, remove the check on a regular basis.
Points for maintenance operation, have a FAG bearing rotating the sound, vibration, temperature, the state of the lubricants and so on.
2, bearing maintenance: bearing cleaning: removing bearing under repair, the appearance of the first record plane bearing, confirm the residual stock of lubricant, sampling inspection with lubricant, bearing.
Common use gasoline, kerosene as a cleaning agent.
Tear open come down to the bearing cleaning, rough washing and fine washing, respectively in the container, put a metal mesh bottom first, make the bearing is not direct contact with dirt from the container.
Coarse when cleaning, if to spin bearing with dirt, can damage the bearing rolling surface, should be pay attention to.
In coarse clean oil, use a brush to remove grease, adhesive, after clean, roughly into fine cleaning).
Fine cleaning, bearing side rotation in the cleaning of oil, while carefully cleaned.
In addition, the clean oil is always kept clean.
3, bearing inspection and judgment: in order to judge whether the bearing of the removed can use, check after wash bearing.
Check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, FAG bearing clearance increases and has nothing to do with dimension precision falling damage, abnormal.
Non separation of small ball bearings, with one hand will support level, the inner ring spinning confirm whether smooth outer ring.