Rotating inner ring and the outer ring of the bearing Raceway surface, due to the rolling elements are rolling contact, thus running track for the dark side, running track at the Raceway surface, does not fall within the exception, which we will load conditions, so when disassembling bearing, please pay strict attention to and observe the movements of Raceway surface.
If you look closely at the track, you will learn that bear radial loads, bear large axial load, tolerance torque loads, uneven or has an extremely rigid on the bearing box. Can load and check that the bearing is coupled with an unexpected installation error is too great, and hold clues to the cause of bearing damage.
Lubrication is very important, not only against the bearings, also for all bearings. But please note that the bearing should not add too much grease. And then replace the bearing lubricant. Oil lubricated bearings, after purging the old engine oil, if possible, should be poured into the fresh engine oil and make the machine at low speed spin for a few minutes. Residual oil as much as possible to collect pollutants and diarrhea in addition to these oils. Use grease-lubricated bearings when replacing the grease, used by Joe you should avoid contact with cotton in addition to any part of the bearing. Fiber because these residues may be wedged in between the rolling and cause damage, especially small bearing application should pay attention to this issue.
When you check the bearings, do not make bearings exposed to contaminants or moisture environment. If the work is interrupted, the paper should be plastic or similar material of his machine. In cases where that may perform checks without dismantling cleaning bearings without masking, picking oil solvent coating with a brush, then wipe dry with a lint free cloth or compressed air to dry (be careful not to let the bearing Assembly rotate). With a small mirror and a similar probe of the kind used by dentists to examine the track side of the bearing and cage and beads. Could not be cleaned and sealed bearings with cover or dust; just wipe the external surface. If the bearing is damaged or needs replacing. Replace bearings in a regular outage maintenance period than suddenly, due to damage to the selected loss of economy.
　　 Contact fatigue failure means the bearing working surface subjected to alternating stress and failure. Contact fatigue spalling in bearing working surface, often accompanied by fatigue crack, first from the contact surfaces of the following maximum alternating shear stress, and then extended to the surface flakes of different shapes, such as point-like pitting corrosion or pitting flaking, Peel into small pieces called a shallow flake.
Wear failure means relative to the surface of sliding friction causes wear of its surface constantly arising out of failure. Continuous wear and tear will cause bearing damage gradually, and eventually lead to loss of precision bearing size and other related issues. Wear can affect the shape change, increased clearance and surface morphology changes may affect the lubricants or lubrication function caused by pollution reaches a certain level and make it a complete loss, so that the loss of running accuracy of the bearing and does not operate properly. Wear failure is one of the common failure modes of all kinds of bearings, worn forms can generally be classified into the most common abrasive and adhesive wear of wear.
1. ring, rotation is used when the load of cylindrical roller bearing with radial load correctly movements in the outer ring.
2. is the inner and outer rings relative slope, shaft deflection of large running track, Raceway surface running track, in the export of their produce shade on vertical load, is inclined to run track, rotate the inner ring of double row tapered roller bearings.
3. the outer ring of radial load of the burden of running track. L only track when subjected to axial load. In the inner and outer rings relative when tilted only take radial loads, which runs 180 trajectory deviation in two tracks. (M).



Other News:
What are the causes of bearing and load failure
INA wheel bearing processing introduction
Temperature rises which SKF bearings
SKF bearing greases operation stability
INA bearing lubrication
Lubricating oil on what are the factors affecting the TIMKEN roller bearing
For SKF bearings are used which require
TIMKEN high temperature bearing damage degree of judgment and appropriate technology