| Outside diameter | D | 52 | mm |
| Basic dynamic load rating, radial | Cr | 27,000 | |
| Fatigue load limit, radial | Cur | 7,700 | |
| Limiting speed for grease lubrication | nG Grease | 3,550 | |
| Under roller diameter | Fw | 45 | mm |
| Width | B | 20 | mm |
| Basic static load rating, radial | C0r | 59,000 | |
| Limiting speed | nG | 5,900 | |
| Reference speed | nϑr | 4,450 |
| Width, outer ring | C | 20 | mm |
| Minimum chamfer dimension | rmin | 0.80 | mm |
| Manufacturer | Part Number |
|---|---|
| Torrington | FJ-4520 |
| SKF | RHNA455220 (SKF) |
| KOYO | 45BTM5220 |
| NADELLA | DB 45 20 P |
| NADELLA | DB 45 52 20 P |
| NTN | HK4520 (NTN) |
| SKF | HK4520 (SKF) |
| IKO | TLA4520 |
