| Combine Needle Roller Bearing - NKXR | NKIA | NKIB | NX | NKX |
| Dimension（mm） | Designation | Mass (g) |
Load Rating（kN） | Limiting Speed (rpm) |
||||||||||||
| F w | D | D 1 | D 2 | C | C 1 | C 2 | d w | rs | Radial | Axial | ||||||
| max. | max. | -0.25 | -0.2 | E8 | min. | open | Shielded | Cr | Cor | Cr | Cor | |||||
| 15 | 24 | 28.1 | 29.2 | 23 | 9 | 6.5 | 15 | 0.3 | NKXR15 | NKXR15-Z | 45 | 10.7 | 12.7 | 14.4 | 28.5 | 13000 |
| 17 | 26 | 30.1 | 31.2 | 25 | 9 | 8 | 17 | 0.3 | NKXR17 | NKXR17-Z | 53 | 11.9 | 15 | 15.9 | 33.5 | 12000 |
| 20 | 30 | 35.1 | 36.2 | 30 | 10 | 10.5 | 20 | 0.3 | NKXR20 | NKXR20-Z | 84 | 16.4 | 23.8 | 24.9 | 53 | 10000 |
| 25 | 37 | 42.1 | 43.2 | 30 | 11 | 9.5 | 25 | 0.6 | NKXR25 | NKXR25-Z | 125 | 18.8 | 30.5 | 33.5 | 76 | 8500 |
| 30 | 42 | 47.1 | 48.2 | 30 | 11 | 9.5 | 30 | 0.6 | NKXR30 | NKXR30-Z | 141 | 22.6 | 36 | 35.5 | 86 | 7500 |
| 35 | 47 | 52.1 | 53.2 | 30 | 12 | 9 | 35 | 0.6 | NKXR35 | NKXR35-Z | 165 | 24.3 | 41.5 | 39 | 101 | 6500 |
| 40 | 52 | 60.1 | 61.2 | 32 | 13 | 10 | 40 | 0.6 | NKXR40 | NKXR40-Z | 214 | 26 | 47 | 56 | 148 | 6000 |
| 45 | 58 | 65.2 | 66.5 | 32 | 14 | 9 | 45 | 0.6 | NKXR45 | NKXR45-Z | 260 | 27.5 | 53 | 59 | 163 | 5000 |
| 50 | 62 | 70.2 | 71.5 | 35 | 14 | 10 | 50 | 0.6 | NKXR50 | NKXR50-Z | 288 | 38 | 74 | 61 | 177 | 4800 |