30304D
| d | 20 | mm | Bore diameter |
| D | 52 | mm | Outside diameter |
| T | 16.25 | mm | Total width |
| B | 15 | mm | Width of inner ring |
| C | 12 | mm | Width of outer ring |
| Cup r (min.) | 1.5 | mm | Chamfer dimension of outer ring (Cup) |
| Cone r (min.) | 1.5 | mm | Chamfer dimension of inner ring (Cone) |
| Cr | 31000 | N | Basic dynamic load rating |
| C0r | 24500 | N | Basic static load rating |
| Grease | 7100 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 10000 | min-1 | Oil-bath lubrication |
| da (min.) | 34 | mm | Diameter of shaft abutment |
| Db (min.) | 49 | mm | Diameter of housing abutment |
| Da (min.) | 37 | mm | Diameter of housing abutment |
| Da (max.) | 43 | mm | Diameter of housing abutment |
| Sa | 2 | mm | Minimum width of space required in housing on large side face |
| Sb | 4 | mm | Minimum width of space required in housing on small side face |
| db (max.) | 26 | mm | Diameter of shaft abutment |
| ra (max.) | 1.5 | mm | Radius of shaft or housing fillet of inner ring |
| ra (max.) | 1.5 | mm | Radius of shaft or housing fillet of outer ring |
| e | 0.81 | Constant | |
| Y0 | 0.41 | Axial load Factors | |
| Y1 | 0.74 | Axial load Factors |
| (approx.) | 0.168 | kg |