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 43/20 | 43 | 53 | 20 | 27.5 | 55 |
| NK 43/30 | 43 | 53 | 30 | 40.2 | 90 |
| NKS 43 | 43 | 58 | 22 | 39.1 | 61 |
| NK 45/20 | 45 | 55 | 20 | 32 | 57 |
| NK 45/30 | 45 | 55 | 30 | 46.5 | 93 |
| NK 45/30 TN | 45 | 55 | 30 | 45.7 | 108 |
| NKS 45 | 45 | 60 | 22 | 40.2 | 64 |
| NK 47/20 | 47 | 57 | 20 | 29.2 | 61 |
| NK 47/30 | 47 | 57 | 30 | 41.8 | 98 |
| RNA 4908 | 48 | 62 | 22 | 50 | 71 |
| RNA 4908 RS | 48 | 62 | 22 | 42.5 | 58.5 |
| RNA 4908.2RS | 48 | 62 | 22 | 42.5 | 58.5 |
| RNA 6908 | 48 | 62 | 40 | 76.5 | 125 |
| NK 50/25 | 50 | 62 | 25 | 41.5 | 73.5 |
| NK 50/35 | 50 | 62 | 35 | 57 | 110 |
| NK 50/35 TN | 50 | 62 | 35 | 58.3 | 137 |
| NKS 50 | 50 | 65 | 22 | 42.9 | 72 |
| RNAO 50X62X20 | 50 | 62 | 20 | 25.5 | 60 |
| RNAO 50X65X20 | 50 | 65 | 20 | 34.1 | 62 |
| RNA 4909 | 52 | 68 | 22 | 52 | 78 |
| RNA 4909 RS | 52 | 68 | 22 | 45 | 64 |
| RNA 4909.2RS | 52 | 68 | 22 | 45 | 64 |
| RNA 6909 | 52 | 68 | 40 | 81.5 | 137 |
| NK 55/25 | 55 | 68 | 25 | 45 | 85 |
| NK 55/35 | 55 | 68 | 35 | 60 | 122 |
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