| Combine Needle Roller Bearing - NKIB | NKIA | NX | NKX | NKXR |
| Dimension(mm) | Designation | Mass (g) |
Load Rating（kN） | Limiting Speed (rpm) |
|||||||
| Radial | Axial | ||||||||||
| d | F | D | B | r min. | Cr | Cor | Cr | Cor | |||
| 12 | 16 | 24 | 16 | 0.3 | NKIB5901 | 40 | 7.6 | 8.3 | 2.7 | 3.45 | 24000 |
| 15 | 20 | 28 | 18 | 0.3 | NKIB5902 | 50 | 10.6 | 13.6 | 2.9 | 4.2 | 22000 |
| 17 | 22 | 30 | 18 | 0.3 | NKIB5903 | 56 | 11 | 14.6 | 3.15 | 4.9 | 21000 |
| 20 | 25 | 37 | 23 | 0.3 | NKIB5904 | 103 | 21 | 25.5 | 4.9 | 7.4 | 17000 |
| 25 | 30 | 42 | 23 | 0.3 | NKIB5905 | 130 | 23.6 | 31.5 | 5.4 | 9.3 | 15000 |
| 30 | 35 | 47 | 23 | 0.3 | NKIB5906 | 147 | 25 | 35.5 | 5.9 | 11.2 | 13000 |
| 35 | 42 | 55 | 27 | 0.6 | NKIB5907 | 243 | 31.5 | 50 | 7.4 | 14.9 | 11000 |
| 40 | 48 | 62 | 30 | 0.6 | NKIB5908 | 315 | 43 | 67 | 9.2 | 19.4 | 9500 |
| 45 | 52 | 68 | 30 | 0.6 | NKIB5909 | 375 | 45 | 73 | 9.6 | 21.4 | 8500 |
| 50 | 58 | 72 | 30 | 0.6 | NKIB5910 | 380 | 47 | 80 | 10.1 | 24.3 | 8500 |
| 55 | 63 | 80 | 34 | 1 | NKIB5911 | 550 | 58 | 100 | 12.1 | 29.5 | 7500 |
| 60 | 68 | 85 | 34 | 1 | NKIB5912 | 590 | 60 | 108 | 12.4 | 32 | 7000 |
| 65 | 72 | 90 | 34 | 1 | NKIB5913 | 635 | 61 | 112 | 12.8 | 34 | 6500 |
| 70 | 80 | 100 | 40 | 1 | NKIB5914 | 980 | 84 | 156 | 16.8 | 44.5 | 6000 |