Single seal

The single sealed needle roller bearing is a derivative of the standard needle roller bearing that integrates a single-sided sealing structure. It is divided into two core categories: stamped outer ring/solid outer ring, and no inner ring/with inner ring. The sealing side achieves dust and grease leakage prevention, and the opening side can be easily refilled, balancing sealing protection and maintenance flexibility. It is suitable for industrial scenarios with mild sealing requirements such as dust and humidity that require regular lubrication. It is the mainstream choice in the fields of engineering machinery, automotive parts, conveying equipment, agricultural machinery, etc.

Model Basic Dimensions Basic rated dynamic load Weight Type
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
NA6909U 45 68 40 66.6 127 0.52 Single seal
NA6910U 50 72 40 70.8 142 0.53 Single seal
NA6911U 55 80 45 89.4 171 0.73 Single seal
NA6912U 60 85 45 93.4 186 0.785 Single seal
NA6913U 65 90 45 97.4 200 0.845 Single seal
NA6914U 70 100 54 124 281 1.4 Single seal
NA6915U 75 105 54 128 299 1.48 Single seal
NA6916U 80 110 54 132 317 1.57 Single seal
NA6917U 85 120 63 168 448 2.36 Single seal
NA6918U 90 125 63 172 471 2.48 Single seal
NA6919U 95 130 63 177 493 2.6 Single seal