This standard specifies the boundary dimensions of deep groove ball bearings, deep groove ball bearings with snap ring groove on outer rings, deep groove ball bearings with snap ring groove and snap ring on outer rings, deep groove ball bearings with dust cap and deep groove ball bearings (bearing replaced in the following) with seal ring with boundary dimension in accordance with GB/T 273.3-1999 "Rolling Bearings-Radial Bearings-Boundary Dimensions".
This standard is applicable to the design and type selection of bearing.
Foreword I
1 Subject Content and Application Scope
2 Normative References
3 Terms and Definitions
4 Symbols (see Figure 1~Figure 11)
5 Structure types
6 Bearing Code
7 Mark
8 Boundary dimension
