NK,RNA ,NKS Needle Roller Bearings Without Inner Ring
| shaft diameter | bearing designation | boundary dimensions | basic load rating | limiting speed | ||||
| FW | D | C | rS | oil | ||||
| dynamic | static | |||||||
| mm | mm | Min. | N | rpm | ||||
| 5 | +NK 5/10 TN | 5 | 10 | 10 | 0.15 | 2350 | 1920 | 39000 |
| +NK 5/12 TN | 5 | 10 | 12 | 0.15 | 3000 | 2650 | 39000 | |
| 6 | +NK 6/10 TN | 6 | 12 | 10 | 0.15 | 2600 | 2280 | 37000 |
| +NK 6/12 TN | 6 | 12 | 12 | 0.15 | 3350 | 3150 | 37000 | |
| 7 | +NK 7/10 TN | 7 | 14 | 10 | 0.3 | 2850 | 2650 | 34000 |
| +NK 7/12 TN | 7 | 14 | 12 | 0.3 | 3650 | 3600 | 34000 | |
| 8 | +NK 8/12 TN | 8 | 15 | 12 | 0.3 | 3950 | 4100 | 32000 |
| +NK 8/16 TN | 8 | 15 | 16 | 0.3 | 5100 | 5800 | 32000 | |
| +NKS 8 TN | 8 | 16 | 13 | 0.3 | 5000 | 4700 | 32000 | |
| 9 | +NK 9/12 TN | 9 | 16 | 12 | 0.3 | 4500 | 5000 | 31000 |
| +NK 9/16 TN | 9 | 16 | 16 | 0.3 | 5900 | 7100 | 31000 | |
| 10 | +NK 10/12 TN | 10 | 17 | 12 | 0.3 | 4750 | 5500 | 29000 |
| +NK 10/16 TN | 10 | 17 | 16 | 0.3 | 6200 | 7800 | 29000 | |
| +NKS 10 TN | 10 | 19 | 13 | 0.3 | 5800 | 6000 | 29000 | |
| 12 | NK 12/12 | 12 | 19 | 12 | 0.3 | 6400 | 7100 | 27000 |
| NK 12/16 | 12 | 19 | 16 | 0.3 | 9000 | 11000 | 27000 | |
| +NKS 12 TN | 12 | 22 | 16 | 0.6 | 9600 | 10400 | 26000 | |
| 14 | NK 14/16 | 14 | 22 | 16 | 0.3 | 10100 | 11500 | 25000 |
| NK 14/20 | 14 | 22 | 20 | 0.3 | 12800 | 15600 | 25000 | |
| +NKS 14 | 14 | 25 | 16 | 0.6 | 14400 | 13800 | 24000 | |
| RNA 4900 | 14 | 22 | 13 | 0.3 | 8500 | 9200 | 25000 | |
| 15 | NK 15/16 | 15 | 23 | 16 | 0.3 | 10700 | 12700 | 24000 |
| NK 15/20 | 15 | 23 | 20 | 0.3 | 13600 | 17200 | 24000 | |
| +NKS 15 | 15 | 26 | 16 | 0.6 | 14400 | 14000 | 23000 | |
| 16 | NK 16/16 | 16 | 24 | 16 | 0.3 | 11300 | 13900 | 23000 |
| NK 16/20 | 16 | 24 | 20 | 0.3 | 14400 | 18800 | 23000 | |
| +NKS 16 | 16 | 28 | 16 | 0.6 | 15700 | 15800 | 22000 | |
| RNA 4901 | 16 | 24 | 13 | 0.3 | 9400 | 10900 | 23000 | |
| RNA 6901 | 16 | 24 | 22 | 0.3 | 16000 | 21600 | 23000 | |
| 17 | NK 17/16 | 17 | 25 | 16 | 0.3 | 11900 | 15000 | 23000 |
| NK 17/20 | 17 | 25 | 20 | 0.3 | 15100 | 20400 | 23000 | |
| 18 | NK 18/16 | 18 | 26 | 16 | 0.3 | 12500 | 16200 | 22000 |
| NK 18/20 | 18 | 26 | 20 | 0.3 | 15800 | 22000 | 22000 | |
| +NKS 18 | 18 | 30 | 16 | 0.6 | 16800 | 17700 | 21000 | |
| 19 | NK 19/16 | 19 | 27 | 16 | 0.3 | 13000 | 17400 | 22000 |
| NK 19/20 | 19 | 27 | 20 | 0.3 | 16500 | 23600 | 22000 | |
| 20 | NK20/16 | 20 | 28 | 16 | 0.3 | 13000 | 17500 | 21000 |
| NK20/20 | 20 | 28 | 20 | 0.3 | 16400 | 23800 | 21000 | |
| NKS 20 | 20 | 32 | 20 | 0.6 | 23000 | 25000 | 20000 | |
| RNA4902 | 20 | 28 | 13 | 0.3 | 10600 | 13600 | 21000 | |
| RNA6902 | 20 | 28 | 23 | 0.3 | 17300 | 25500 | 21000 | |
| 21 | NK21/16 | 21 | 29 | 16 | 0.3 | 13500 | 18700 | 21000 |
| NK21/20 | 21 | 29 | 20 | 0.3 | 17100 | 25500 | 21000 | |
| 22 | NK22/16 | 22 | 30 | 16 | 0.3 | 14000 | 19900 | 20000 |
| NK22/20 | 22 | 30 | 20 | 0.3 | 17700 | 27000 | 20000 | |
| NKS 22 | 22 | 35 | 20 | 0.6 | 24500 | 28000 | 18000 | |
| RNA4903 | 22 | 30 | 13 | 0.3 | 11000 | 14600 | 20000 | |
| RNA6903 | 22 | 30 | 23 | 0.3 | 18600 | 29000 | 20000 | |
| 24 | NK24/16 | 24 | 32 | 16 | 0.3 | 15000 | 22300 | 18000 |
| NK24/20 | 24 | 32 | 20 | 0.3 | 19000 | 30500 | 18000 | |
| NKS24 | 24 | 34 | 20 | 0.6 | 26000 | 31000 | 17000 | |
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