Bearing life is basically divided into fatigue life, life, wear life, the failure life.
1. Fatigue life: bearing the main moving parts of the material to the limit, resulting in a cumulative time prior to bearing failure.
Rated dynamic load: life of 10000 rpm, the bearings can bear the load.
Equivalent dynamic load: refers to the actual load bearing dynamic load operation in accordance with conditions determined to convert the assumption that load.
2. Life: is life refers to the three sexual references, in theory, it refers to the bearing fatigue life, under normal conditions to the performance of the bearing wear life, the conditions are not normal, no manufacturing defects, failure life of the representative .
3. Wear life: bearing due to normal wear, clearance increased to the limit before the cumulative working time. Bearing on today's industrial level, it should wear life> fatigue life, but in fact the opposite traction motor.
4. Fault life: bearing failure is the incapacity of working time accumulated before.
And bearing lubrication and bearing life and have to do it, we see the purpose of bearing lubrication to know:
The purpose of bearing lubrication:
1. Extend the fatigue life.
Rolling bearing fatigue life, in the rotation, good lubrication rolling contact surface is extended. This is the greatest advantage of bearing lubrication, can increase the fatigue life and prolong bearing life.
2. To reduce friction and wear.
Constitute the bearing rings, rolling elements and maintain contact with each other part of the device to prevent the metal contact, reducing friction, wear and tear.
3. Discharge of frictional heat, cooling
Cycle oil to the oil law can be discharged place by friction heat, or heat coming from the external cooling. Prevent bearing overheating and prevent its aging oil.
4. Other
Members are also able to stop lubricating bearings bearing's internal foreign body, or to prevent the bearings rust, corrosion effect.
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