NA-M series

The NA-M series is a single row solid ring needle roller bearing with an inner ring and a cage. M is the suffix identification of the outer ring with lubrication groove and lubrication hole. The inner ring has dual gear edges and the outer ring has dual gear edges and a cage. The radial section is compact and can withstand pure radial loads. It is suitable for industrial scenarios with medium and low speeds and requires convenient grease filling. It is commonly used for radial support of general transmission equipment such as motors, pumps, valves, gearboxes, and textile machinery.

Model Basic Dimensions Basic rated dynamic load Weight Type
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
RNA493M 5 11 10 2.42 1.95 0.0046 NA-M series
RNA494M 6 12 10 2.7 2.32 0.0053 NA-M series
RNA495M 7 13 10 2.7 2.4 0.0059 NA-M series
RNA496M 8 15 10 3.5 3.1 0.0073 NA-M series
RNA497M 9 17 10 4.1 3.3 0.0093 NA-M series
RNA498M 10 19 11 5.7 4.6 0.0126 NA-M series
RNA499M 12 20 11 6 5.7 0.0136 NA-M series
RNA4900M 14 22 13 8.4 9.2 0.0165 NA-M series
RNA4901M 16 24 13 8.9 10.2 0.0181 NA-M series
RNA4902M 20 28 13 10 12.6 0.0215 NA-M series
RNA4903M 22 30 13 10.8 14.3 0.0235 NA-M series
RNA4904M 25 37 17 19.3 23 0.0555 NA-M series
RNA4905M 30 42 17 21.8 28.2 0.064 NA-M series
NA495M 5 13 10 2.7 2.4 0.0073 NA-M series
NA496M 6 15 10 3.5 3.1 0.0091 NA-M series
NA497M 7 17 10 4.1 3.3 0.0112 NA-M series
NA498M 8 19 11 5.7 4.6 0.015 NA-M series
NA499M 9 20 11 6 5.7 0.0167 NA-M series
NA4900M 10 22 13 8.4 9.2 0.024 NA-M series
NA4901M 12 24 13 8.9 10.2 0.0265 NA-M series