Rolling bearing failure in many forms, but the majority of failure so far there is no available method for calculating life in the form, only the fatigue life, wear life, lubrication life and micro-abrasive life can be assessed quantitatively by the method of calculation.
(1) The fatigue life
Adequate lubrication and other normal conditions of use, scroll NSK Bearings often due to fatigue spalling and failure, their expectations from the sample the data in the fatigue life calculated according to the prescribed formula and calculation procedures to a certain degree of reliability.
(2) wear life
The corresponding machine tool spindle often take the size of a large diameter to ensure its high stiffness, with the bearing, its far from the fatigue limit, often due to wear and loss of the necessary precision, so that can not continue to use this type of bearing must wear life to measure the possible length of service. In fact, Most of the bearings used on site due to excessive wear and failure, so it must take into account the wear life.
(3) lubrication life
SKF bearings for double-sided with sealed grease lubrication time will no longer fill the fat added fat, the bearing life will depend on the life of the grease.
(4) micro-abrasion life
In the institutions of the winch, jib crane and gearbox, as well as automobile clutch bearings, in its non-operation state by the vibration load generated by micro-abrasion injury, tend to develop into the soil conductivity causes of bearing failure of such institutions in FAG bearings, is sometimes necessary to calculate the micro-abrasive life.
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