| Under roller diameter | Fw | 30 | mm |
| Width, outer ring | B | 12 | mm |
| Basic static load rating, radial | C0r | 18,200 | |
| Limiting speed | nG | 8,600 | |
| Reference speed | nϑr | 6,600 |
| Outside diameter | D | 37 | mm |
| Basic dynamic load rating, radial | Cr | 12,100 | |
| Fatigue load limit, radial | Cur | 2,440 | |
| Limiting speed for grease lubrication | nG Grease | 5,200 |
| Minimum chamfer dimension | rmin | 0.80 | mm |
| Minimum width to base of drawn cup with closed end | Ct min | 9.30 | mm |
| Manufacturer | Part Number |
|---|---|
| NTN | BK3012 |
| SKF | BK3012 |
| SKF | RBNA303712 |
| IKO | TLAM3012 |
| KOYO | 30MKM3712 |
