Needle roller bearings are bearings with cylindrical rollers with a diameter smaller than the length. Improved roller/raceway shape prevents stress peaks and extends the service life of bearings.
Provide needle roller bearings in different designs, series, and sizes to meet various working conditions and applications.
| Model | Fully loaded needle hole diameter | Outside diameter | width | Basic rated dynamic load | Limiting Speeds |
|---|---|---|---|---|---|
| [mm] | [mm] | [mm] | (kN) | 【r/min】 | |
| NK 12/16 | 12 | 19 | 16 | 9.13 | 12 |
| RNAO 12X22X12 TN | 12 | 22 | 12 | 9.52 | 10 |
| NK 14/16 | 14 | 22 | 16 | 10.2 | 12.5 |
| NK 14/20 | 14 | 22 | 20 | 12.8 | 16.6 |
| RNA 4900 | 14 | 22 | 13 | 8.8 | 10.4 |
| RNA 4900 RS | 14 | 22 | 13 | 7.37 | 8.15 |
| RNA 4900.2RS | 14 | 22 | 13 | 7.37 | 8.15 |
| NK 15/16 | 15 | 23 | 16 | 11 | 14 |
| NK 15/20 | 15 | 23 | 20 | 13.8 | 18.3 |
| RNAO 15X23X13 | 15 | 23 | 13 | 8.25 | 11.2 |
| NK 16/16 | 16 | 24 | 16 | 11.7 | 15.3 |
| NK 16/20 | 16 | 24 | 20 | 14.5 | 20 |
| RNA 4901 | 16 | 24 | 13 | 9.9 | 12.2 |
| RNA 4901 RS | 16 | 24 | 13 | 8.09 | 9.65 |
| RNA 4901.2RS | 16 | 24 | 13 | 8.09 | 9.65 |
| RNA 6901 | 16 | 24 | 22 | 16.1 | 23.2 |
| NK 17/16 | 17 | 25 | 16 | 12.1 | 16.6 |
| NK 17/20 | 17 | 25 | 20 | 15.1 | 22 |
| RNAO 17X25X13 | 17 | 25 | 13 | 10.1 | 14.6 |
| NK 18/16 | 18 | 26 | 16 | 12.8 | 17.6 |
| NK 18/20 | 18 | 26 | 20 | 16.1 | 23.6 |
| NK 19/16 | 19 | 27 | 16 | 13.4 | 19 |
| NK 19/20 | 19 | 27 | 20 | 16.5 | 25.5 |
| NK 20/16 | 20 | 28 | 16 | 13.2 | 19.3 |
| NK 20/20 | 20 | 28 | 20 | 16.5 | 25.5 |
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