| Under roller diameter | Fw | 30 | mm |
| Width | B | 20 | mm |
| Basic static load rating, radial | C0r | 39,500 | |
| Limiting speed | nG | 8,600 | |
| Reference speed | nϑr | 6,300 |
| Outside diameter | D | 37 | mm |
| Basic dynamic load rating, radial | Cr | 22,000 | |
| Fatigue load limit, radial | Cur | 5,100 | |
| Limiting speed for grease lubrication | nG Grease | 5,200 |
| Width, outer ring | C | 20 | mm |
| Minimum chamfer dimension | rmin | 0.80 | mm |
| Manufacturer | Part Number |
|---|---|
| SKF | RHNA303720 |
| KOYO | 30BTM3720 |
| NTN | HK3020 (NTN) |
| SKF | HK3020 (SKF) |
| Torrington | FJ-3020 |
| IKO | TLA3020 |
