Small small-sized bearing research report

Research shows that in the 1960 s, small rolling bearing fatigue life is minimum, which before that, even if meet the normal operation under the condition of fatigue failure criterion, caused by the rolling contact fatigue of 'premature failure' is not going to happen. Besides, modern manufacturing technology has been able to produce parts of high geometric accuracy, and has a very smooth surface of the rolling contact bearing; Modern steelmaking process can provide impurities in high purity bearing steel: the modern sealing and lubricant filtering technology can prevent harmful impurities into the most big limit hydraulic contact surface. Today, in many applications, even in places that have requirements of heavy load, combine these methods to use, can eliminate hydraulic contact fatigue. In many of the light load applications, such as most of the motor, the design on the fatigue life is no longer the main problem. Hydraulic bearing phyletic and various, so at the start of discussion bearing theory and application to analysis before, it is necessary to familiar with all kinds of shaft bearing. In the following sections, apply to the current most of the ball bearing and roller bearing were introduced.