1 bearing life
Under certain loads, rolling bearing operation to any rolling body or ring rolling fatigue pitting corrosion occurred on front, total revolutions of two rings relative operation (LAPS) or the number of hours worked, known as the bearing life. This also means that a new bearing running to bearing designation OF 6317 BEARING fatigue pitting corrosion can not be used. As predicted a person's life, for a specific bearing, we cannot predict the exact life. But with the help of the census and other related data, it can predict the life of bearing designation OF 6317 BEARING a group of people. Similarly, introduced below about the basic rating life story.
2 basic rating life
A number of the same bearing, running in the normal condition, speed under the same stress, of which 10% bearing fatigue pitting corrosion (pitting failure does not appear the 90% bearing), total a bearing turning (ring) or the number of working hours is called a basic amount of bearing designation OF 6317 BEARING life bearing. Use the symbol L (106R) or Lh (H) said. Need to explain is: ① bearing operation conditions, such as the size of the force is not the same, the basic rating life values are not the same; ② a bearing can reach or exceed the life value can be possible by 90% degrees, the possibility can not achieve the life value of the failure rate of 10%.
3 the basic dynamic load rating
The basic dynamic load rating refers to bearing designation OF 6317 BEARING the basic rating life is L=106r, the maximum load bearing can bear, represented by the letter C. The basic dynamic load rating is high, its bearing capacity is. The basic rating of different types of bearing dynamic load C values available bearing sample or design manual.