638
| d | 8 | mm | Bore diameter |
| D | 28 | mm | Outside diameter |
| B | 9 | mm | Width |
| r (min.) | 0.3 | mm | Chamfer dimension |
| Cr | 5050 | N | Basic dynamic load rating |
| C0r | 1970 | N | Basic static load rating |
| Grease | 28000 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 34000 | min-1 | Oil-bath lubrication |
| da (min.) | 10 | mm | Diameter of shaft abutment |
| Da (max.) | 26 | mm | Diameter of housing abutment |
| ra (max.) | 0.3 | mm | Radius of shaft or housing fillet |
| (approx.) | 0.0283 | kg |