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）
NA4902M 15 28 13 10 12.6 0.035 NA-M series
NA4903M 17 30 13 10.8 14.3 0.039 NA-M series
NA4904M 20 37 17 19.3 23 0.0785 NA-M series