The general-purpose rolling bearing code is a product symbol that uses letters and numbers to indicate the structure, size, tolerance level, technical performance and other characteristics of the rolling bearing or its sub-components (ie parts).

The following bearing outline dimension standards are quoted in this code method. Where the bearing code is marked with the standard number, the external dimensions of the bearing meet the requirements of the standard.

   GB/T273.1 Rolling bearings - Tapered roller bearing outline dimensions scheme

   GB/T273.2 Rolling bearings - Outline dimensions of thrust bearings

   GB/T273.3 Rolling bearings - Radial bearing outline dimensions scheme

   GB/T276 Rolling bearings - Dimensions of deep groove ball bearings

   GB/T281 Rolling bearings - Outline dimensions of self-aligning ball bearings

   GB/T283 Rolling bearings - Outline dimensions of cylindrical roller bearings

   GB/T285 Rolling bearings - Dimensions of double row cylindrical roller bearings

   GB/T288 Rolling bearings - Spherical roller bearing dimensions

   GB/T292 radial bearing angular contact ball bearing dimensions

   GB/T293 Rolling bearings - Outline dimensions of angular contact ball bearings on the inner ring with lock

GB/T294 radial bearing four-point contact ball bearing dimensions

   GB/T296 Rolling bearings - Dimensions of double row angular contact ball bearings

   GB/T297 Rolling Bearings - Tapered Roller Bearing Dimensions

   GB/T299 rolling bearings double row tapered roller dimensions

   GB/T300 Rolling Bearings Four-row Tapered Roller Bearing Dimensions

   GB/T301 Rolling bearings - Outline dimensions of flat-bottomed thrust ball bearings

   GB/T3882 Outer Spherical Ball Bearings and Eccentric Sleeves Outline Dimensions

   GB/T4663 Rolling bearings - Outline dimensions of thrust cylindrical roller bearings

   GB/T5859 Rolling bearings - Outline dimensions of thrust spherical roller bearings

   GB/T6362 Rolling bearings Two-way thrust angular contact ball bearings