| Bearing number | 6921N |
| Size (mm) | 105x145x20 |
| Bore Diameter (mm) | 105 |
| Outer Diameter (mm) | 145 |
| Width (mm) | 20 |
| d | 105 mm |
| D | 145 mm |
| B | 20 mm |
| C | 20 mm |
| a | 3.3 mm |
| b | 1.9 mm |
| r min. | 1.1 mm |
| r1 min. | 0.5 mm |
| D1 | 142.6 mm |
| Weight | 0.803 Kg |
| Basic dynamic load rating (C) | 42,5 kN |
| Basic static load rating (C0) | 42 kN |
| (Grease) Lubrication Speed | 4200 r/min |
| Bore Type | Cylindrical Bore |
| Enclosure | Open |
| Configuration | Single Row |
| Bore Size | 105 mm |
| Outside Diameter | 145 mm |
| Width | 20 mm |
| Fillet Radius/Chamfer | 1.1 mm |
| r1 | 0.5 mm |
| Groove Width | 1.9 mm |
| Groove Diameter | 142.6 mm |
| a (max) | 3.3 mm |
| Dynamic Load Rating | 42,500 N |
| Static Load Rating | 42,000 N |
| Limiting Speed - Grease | 4,300 rpm |
| Limiting Speed - Oil | 5,300 rpm |
| Factor fo | 16.4 |
| Radial Clearance | 0.015 to 0.041 mm |
| da (min) | 111 mm |
| Da (max) | 139 mm |
| Dx (min) | 152 mm |
| ra (max) | 1 mm |
| Cy (max) | 4.7 mm |
