INA滚针轴承是进口轴承中体积小具有高负荷能力的滚动轴承；可带内圈或不带内圈供应
单面或双面密封的ＩＮＡ滚针轴承可以有效的防止脏物的侵入．基本上此轴承是在已填脂下提供，运转温度为－３０至＋１２０，使用的润滑剂为高性能锂基脂KP2K.由于有足够储存润滑脂的空间,故可有较长的再润滑间隔期.内圈较外圈宽1MM,因此在少许的轴向位移下密封仍能保持功能.内圈上有一润滑油孔
| RNA4900RS | RNA4900.2RS | 14 | 22 | 13 |
| RNA4901RS | RNA4901.2RS | 16 | 24 | 13 |
| RNA4902RS | RNA4902.2RS | 20 | 28 | 13 |
| RNA4903RS | RNA4903.2RS | 22 | 30 | 13 |
| RNA4904RS | RNA4904.2RS | 25 | 37 | 17 |
| RNA4905RS | RNA4905.2RS | 30 | 42 | 17 |
| RNA4906RS | RNA4906.2RS | 35 | 47 | 17 |
| RNA4907RS | RNA4907.2RS | 42 | 55 | 20 |
| RNA4908RS | RNA4908.2RS | 48 | 62 | 22 |
| RNA4909RS | RNA4909.2RS | 52 | 68 | 22 |
| RNA4910RS | RNA4910.2RS | 58 | 72 | 22 |
| NA4900RS | NA4900.2RS | 10 | 14 | 13 |
| NA4901RS | NA4901.2RS | 12 | 16 | 13 |
| NA4902RS | NA4902.2RS | 15 | 20 | 13 |
| NA4903RS | NA4903.2RS | 17 | 22 | 13 |
| NA4904RS | NA4904.2RS | 20 | 25 | 17 |
| NA4905RS | NA4905.2RS | 25 | 30 | 17 |
| NA4906RS | NA4906.2RS | 30 | 35 | 17 |
| NA4907RS | NA4907.2RS | 35 | 42 | 20 |
| NA4908RS | NA4908.2RS | 40 | 48 | 22 |
| NA4909RS | NA4909.2RS | 45 | 52 | 22 |
| NA4910RS | NA4910.2RS | 50 | 58 | 22 |