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First, some equipment in using FAG bearing of when on its itself of tour gap problem requirements of special strictly, if tour gap had big, even slightly a points big words, on will easy makes equipment of parts wear, then had to through reduces tour gap to solution this problem, but with of of another problem also appears has, that is tour gap too small words, thermal of problem, thermal if improper, on will is easy led to internal temperature rise eventually led bearing overheating and burn!
Secondly might be too much load (preload is too large). Excessive speed. Clearance is too small. There is water or other foreign body penetrated. If the above two conditions are not so is the poor accuracy of shaft, bearings, shaft deflections. See here, I think everyone would like to know a way around it, first of all, to research on lubricant and lubrication method, selected the FAG bearing lubricant, and its amount and selection of the correct bearing. Research to meet and bearing clearance and preload, and improved sealing device. Check the accuracy of shaft and housing. Of course, if you next to a guy, his actions have you followed the best!
When removing FAG bearings under overhaul, first recorded appearance bearing confirming residual lubricant stock, after checking the lubricant used for sampling, wash bearings. As a cleaning agent, ordinary gasoline, kerosene. Removed bearing cleaning, cleaning rough and fine finishing and washing, respectively, in a container, placed on the bottom of the metal mesh, bearings do not directly contact the dirt container. Precision cleaning, if you rotate the bearing with dirt will damage bearing rolling surface, should be noted. Coarse cleaning oil, with the brush remove grease, adhesive clean transferred fine after washing. Sperm washing, FAG bearings is in cleaning oil side spin and carefully cleaned. In addition, the cleansing oil to keep clean.
Tapered roller bearings-isolation bearings, rolling element and the Raceway in the outer ring can be respectively checked.
Larger bearings cannot rotate, check rolling element and the Raceway, cage, sidewall surface appearance, as high as possible the importance of bearing shall be carefully inspected.
Whether the judgment can be used, is to consider the damage degree of FAG bearings, mechanical properties, importance, operating conditions, to be determined during the next maintenance. However, if the defect is no longer used. Must get a new bearing.
Inner ring, outer ring, rolling elements, cages on any one have crack or gap.
Rings, rolling elements on any fracture.
Raceway surface, rib, rolling a remarkable relaxation.
Rust on Raceway surface, rolling, is injured.
Raceway surface, rolling up a serious pressure marks and traces.
Clear the inner circle diameter or outer ring outside diameter surface creep.
Discoloration due to heat obviously.
Into the grease bearings, seals, or shield damage apparent.
FAG bearings cleaning
In order to determine whether the FAG bearings removed can be used again, to check after wash bearings. Carefully check the Raceway surface, rolling, status of the mating surfaces, wear of the cage, FAG bearing clearance increases and there is no information on dimensional accuracy to decrease injury exceptions. Non-separation of small ball bearings, the inner level of support with one hand, rotate the outer ring to confirm fluency.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| LM354530 NSK | 30 | 45 | 30.2 |
| LM354525 NSK | 30 | 45 | 25.2 |