| Bore diameter | d | 20 | mm |
| Width | B | 15 | mm |
| Basic static load rating, radial | C0r | 7,900 | |
| Limiting speed | nG | 19,800 |
| Outside diameter | D | 52 | mm |
| Basic dynamic load rating, radial | Cr | 16,900 | |
| Fatigue load limit, radial | Cur | 540 | N |
| Reference speed | nϑr | 14,400 |
| Minimum diameter shaft shoulder | da min | 27 | mm |
| Maximum fillet radius | ra max | 1.10 | mm |
| Maximum diameter of housing shoulder | Da max | 45 | mm |
| Minimum chamfer dimension | rmin | 1.10 | mm |
| Shoulder diameter inner ring | d1 | 30.30 | mm |
| Caliber diameter outer ring | D2 | 44.40 | mm |
| Manufacturer | Part Number |
|---|---|
| Marlin-Rockwell Corp. | 304-SF |
| Torrington | T7304 |
| Isuzu | 00090-177 |
| Mitsubishi | 00552-06304 |
| NTN | 6304Z (NTN) |
| Federal Bearings | 1304F |
| Hyatt | 7604 |
| Norma-Hoffmann Bearings | 304P |
| Bearings Company of America | 304S |
| SKC | 5950227 |
| RIV Officine di Villar Perosa | 5BPL20 |
| GPZ Bearings | 60304 |
| Fischer Bearings | 6304P |
| FLT | 6304Z |
| GMN | 6304Z |
| KOYO | 6304Z |
| MGM Bearings | 6304Z |
| NSK | 6304 Z (NSK) |
| Neuweg Fertigung GmbH | 6304Z |
| RHP | 6304Z |
| Steyr-Daimler-Puch | 6304Z |
| ZKL-ZVL | 6304Z |
| SKF | I-112843 |
| UBCO | M020P |
| SKF | 6304-Z/QE6 (SKF) |
| Hoover | 7304 |
| Fafnir | 304KD |
| SKF | 6304-Z (SKF) |
| Volvo | 19454 |
| White Motor | 393089 |
| Fiat | 28040060 |
| Someca Tractor | 28040060 |
| SKC | 3015047 |
| DAF-Truck | 355447 |
| Talbot | 3612702000 |
| Faun | 37205069065 |
| Kaessbohrer | 6.691.085.100 |
| Kaessbohrer | 6.691.085.100.0 |
| Volvo | 6607535 |
| Peugeot | 3612702000 |
| Faun | 5069065 |
| Isuzu | 9-00090-113-0 |
| Mazda | 9-606-1304 |
| Zetor | 93010551 |
| Yamaha | 93306-30404 |
| Zetor | 971105 |
| Mazda | 9960-61-304 |
| Mazda | 9960-61-3040 |
| Steyr-Daimler-Puch | 000625106304 |
| Isuzu | 00090-113 |
| ZF | 0635333091 |
| Honda | 96120-63040 |
| White Motor | 3D0243 |
| Honda | GB6304Z |
