boundary dimensions and bearing number codes standardized and have been listed here ... standardization there are many standard bearing dimensions which are not presently ... boundary dimensions for radial bearings excluding tapered roller bearings are ... attached tables related specifications bearing numbers are comprised of a basic ... number followed by supplementary codes the makeup and order of bearing ... indicates general information about a bearing such as its fundamental type boundary ... dimensions series number bore diameter code and contact angle the supplementary ... codes derive from prefixes and suffixes which ... indicate a bearing s tolerances internal clearances and ... related specifications 5.2 bearing numbers rolling bearing part numbers ... indicate bearing type dimensions tolerances internal ...
boundary dimensions and bearing number codes table 5.2 bearing number composition ... basic number supplementary prefix code special application/material heat ... treatment code 4t et e f h m 5s hl 4t tapered roller ... bearings et tapered roller bearings carburized alloy steel bearings ... stainless steel bearings high speed steel bearings plated ... bearings ceramic rolling element bearings hl high lubrication roller bearings ... bearing series code basic numbers dimension series code ... series bore diameter number bore code diameter mm contact angle code code 1 ... contact angle deep groove ball bearings type code 6 68 69 60 62 63 78 79 70 72 ... 560 2,360 2,500 angular contact ball bearings a standard contact angle 30° b standard ...