FAG super precision angular contact ball bearing performance know how much? — — The tolerance

FAG super precision angular contact ball bearing performance know how much? — — The tolerance of 2019 - 12 - 11 tolerance level of precision and ultra precision angular contact ball bearings are used in the spindle of machine tool industry, textile machinery, woodworking machinery, and there is a requirement for high reliability, accuracy and recommend suite operation etc. FAG of the ultra-precision spindle angular contact ball bearing represents the use of reliable. FAG of precision and ultra precision bearing tolerance DIN620 standard requirements. In order to ensure the performance of the bearing and give full play to achieve very high machining accuracy, FAG super precision bearing, such as size, shape and running accuracy, made according to the standards set by the small tolerance. Bearing tolerance grade meet the P4, running accuracy and parallel degree in accordance with the P2. P4S level is the Schaeffler Group's standards, is higher than P4 precision grade. All super tight main shaft bearing of dimension, form and position tolerances can reach the grade P2. FAG can also through the supply agreement in accordance with the narrower diameter tolerance, tolerance range is in the center of the diameter tolerance, the tolerance range is 1/3 of the diameter tolerance level P4S, narrow diameter tolerance than P2, tolerance for K5. In terms of high adaptability and accuracy of operation, the performance of the ultra precision bearing is very high. However, unless the precision of the mating parts and bearing synchronous, otherwise impossible can give full play to the performance of the bearing. Match with super precision bearing shaft, bearing and distance ring shape tolerance, the processing tolerance recommended to see the chart below. Listed in table form, such as tolerance, has passed the test of various applications. These values will help better and faster to choose to cooperate, to ensure reliability and compatibility. Bearing installation surface roughness must load average roughness Ra request, to ensure the tightness change the normal ( Grinding) 。 FAG of ultra-precision spindle single row angular contact ball bearings, overall dimensions have been standardized, can be used interchangeably with other similar products on the market. And has the most mature and most comprehensive in the world for the kinds of high precision machine tool spindle bearing, represents the highest technical level of performance. Can offer the market almost all the design of the main shaft bearing, can meet the requirements of the vast majority of applications. Ultra-precision spindle with angular contact ball bearing contact character such as shape, surface quality and lubricant has the following advantages: low and high precision low excellent high speed performance low price, high stiffness good seismic performance of ultra-precision spindle with angular contact ball bearing tolerance value to see the table below. The inner ring tolerance ( Tolerance grade P4S) The bearing diameter tolerance ( P4S - tolerance level K5） Bearing outside diameter tolerance ( P4S - tolerance level K5） Hk united bearing focus bearing industry informationization service nearly 20 years, with many excellent bearing enterprise grows together, also witnessed China's bearing production technology from low to high development process. We will adhere to continue, the steadfast work, don't, don't give up, for the benign development of Chinese bearing industry do render some. Hk united bearing network bearing engineers, 2019. 06. 11