Spherical roller bearing specification table header letters are what is the meaning of 5Code D, D, B, R, Da, Da, C022205CJ 2552181304743What do you mean?
However, the specific principles and sources are unknown.Another: other, for example, through mechanical calculation, calculation of ferrule thickness and roller diameter, quantity, and so on, has gone beyond my personal understanding of the scope.To tell the truth, I have in the design, test and production experience (I just sell the bearing, you ask Claudia, go climbing). Sorry, I can't help you in these fields
This is the double row self-aligning roller bearingIt is worth noting that this judgment stems from the actual large number of contact bearings.The bearing type has five numbers, and the first digit from left to left indicates that the bearings are self-aligning.Among them, 21, 22, 23 and 24 are radial bearings, and are double row rolling bodies.These are also stated in GB/T272 (ISO355).
D: inside diameter of bearing.D: outer diameter of bearings.B: bearing width size.R: the radius of the chamfer.Da: the maximum outer diameter of the shaft shoulder of the bearing.Da: minimum diameter of seat bore for mounting outside diameter of bearing.C0: rated load of bearings.
