| Bore diameter | d | 20 | mm |
| Width | B | 15 | mm |
| Basic static load rating, radial | C0r | 3,350 | |
| Limiting speed | nG | 16,100 |
| Outside diameter | D | 52 | mm |
| Basic dynamic load rating, radial | Cr | 12,700 | |
| Fatigue load limit, radial | Cur | 212 | N |
| Reference speed | nϑr | 11,600 |
| Minimum diameter shaft shoulder | da min | 27 | mm |
| Maximum fillet radius | ra max | 1 | mm |
| Maximum diameter of housing shoulder | Da max | 45 | mm |
| Minimum chamfer dimension | rmin | 1.10 | mm |
| Shoulder diameter inner ring | d1 | 31.60 | mm |
| Shoulder diameter outer ring | D1 | 41.50 | mm |
| Manufacturer | Part Number |
|---|---|
| SKF | 1304 (SKF) |
| ISO | 20BS03 |
| RIV Officine di Villar Perosa | 5BJ |
| Fiat | 679559 |
| Volvo | 181369 |
| Federal Bearings | 1304SA |
| NSK | 1304 TNG (NSK) |
| SKF | 1304-E TN9 (SKF) |
| RHP | 1304TNH (RHP) |
| Koyo | 1304 (KOYO) |
| Fischer Bearings | P304 |
| SKC | 3000306 |
| GPZ Bearings | 1304 |
| MGM Bearings | 1304 |
| NSK | 1304 (NSK) |
| RHP | 1304 |
| Marlin-Rockwell Corp. | 1304E |
| Steyr-Daimler-Puch | 1304E/TG |
| NTN | 1304 (NTN) |
| Renault | 7702304 |
| Fafnir | L304 |
| Rover | 2187 |
| Fiat | 26795990 |
| Fiat | 679599 |
| Renault | 8021962 |
