This type of bearings in the matters needing attention when replace each other!

This type of bearings in the matters needing attention when replace each other! 2019 - 06 - 19 FAG angular contact ball bearing 7308 b way of equipping last've said, readers have asked to SKF 7308 becbp and 7308 bep 7308 b the difference between the universal equipping with FAG, SKF says below this kind of bearing design and the difference with FAG products. SKF will this kind of bearings are divided into two categories, general equipping and basic design of the bearing ( Cannot be used as a general distribution group) For a single bearing configuration mode. 7308 B, B is also in the contact Angle of 40 & deg; Single row angular contact ball bearings. Angular contact ball bearings are separated type design, inside and outside the circle on both sides of the shoulder height is differ, the shoulder processing on one side of which is low to make in into more of the ball bearing. SKF general matched bearing is specially added, when bearing installed close to each other, any combination can be established internal clearance or preload and average load distribution, without having to use gaskets or similar device. General distribution group of bearing model with suffix to said internal clearance ( 钙、CB、CC) (or preload GA, GB, GC) 。 This kind of bearing in the process of ordering, who ordered by a single set of bearing, bearing the total number must show, not only provide the order number of bearing or bearing group. Paired bearings used in when a single bearing load bearing capacity is insufficient, Use serial configuration) When bear joint load or force of the axial load in both directions ( Use the back to back or face-to-face way configuration) 。 The main way of configuration are series, back to back and face to face. When ordering paired bearings, must indicate the number of the bearing group, rather than the number of single bearing. SKF general matched bearing provides three different categories, clearance and preload is as follows: CA: small axial clearance; CB: ordinary axial clearance ( Standard products) ； CC: big axial clearance; GA: light preload; GB: preloaded; GC: heavy preloaded. Specific clearance and preload value shown in table 1 and table 2. SKF and FAG7308B main difference in the two data sheet, carefully to learn! SKF single row angular contact ball bearing is mainly used in the basic design of only one bearing configuration on each position. The width and the projection quantity for common tolerance, therefore not suitable for two single row angular contact ball bearings will be installed. General matched bearing and FAG SKF bearing universal modular design is some difference, SKF belt clearance CA, CB, CC product is equivalent to FAG UA, GA, GB, GC is equivalent to FAG UL product, just SKF will clearance and preload and the segmentation, make a selection will be more reasonable. Two products used in fully understand the working condition, can choose reasonable exchange products. DT, DB, DF products usually can be mutual gm. When using matched bearing, bearing can install on tight to each other, do not need to adjust. By selecting the appropriate category of bearing clearance or preload, and in between shaft and bearing the appropriate tolerance matching, you can get the required clearance or preload. To make the bearing play its performance, and is capable of reliable operation, must be properly adjusted or select the appropriate clearance or preload. If the bearing work clearance is too large, will not be able to make full use of bearing load capacity, but too much preload will lead to increased friction and working temperature rise, and thus shorten the working life of the bearing. Should pay special attention to in back to back and face-to-face bearing configuration, if the axial load is mainly a major role in one direction, for in the absence of bear in the ball bearing, is a bad rolling conditions, and can lead to noise, and damage to oil film and increase cage under stress. 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, 2018. 12. 19