NK series

The NK series is a single row light series needle roller bearing without an inner ring and a dual gear edge solid ring. The core unit is composed of a dual gear edge solid outer ring and a needle roller holder assembly. The design without an inner ring makes the radial section extremely compact. It relies on a quenched and finely ground journal as the inner raceway and only bears pure radial loads. It is suitable for general industrial scenarios with medium low speed, medium heavy load, and limited radial installation space. It is a mainstream radial support accessory for motors, transmissions, automation equipment, light industrial 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)
NK80/35 80 95 35 78.1 194.2 0.445 NK series
NK85/25 85 105 25 76.4 145.1 0.435 NK series
NK85/35 85 105 35 102 209.9 0.61 NK series
NK90/25 90 110 25 77.4 150 0.456 NK series
NK90/35 90 110 35 103 216.7 0.64 NK series
NK95/26 95 115 26 79.7 158.9 0.495 NK series
NK95/36 95 115 36 106.9 230.5 0.69 NK series
NK100/26 100 120 26 82.5 168.7 0.525 NK series
NK100/36 100 120 36 109.8 244.2 0.725 NK series
NK105/26 105 125 26 84.7 177.5 0.545 NK series
NK105/36 105 125 36 112.8 257.9 0.76 NK series
NK110/30 110 130 30 105.9 239.3 0.66 NK series
NK110/40 110 130 40 133.4 323.6 0.88 NK series
NK120/40 120 140 40 113 268 0.91 NK series
NK130/40 130 150 40 116 283 0.98 NK series
NK145/32 145 170 32 111 238 1.12 NK series
NK145/42 145 170 42 153 360 1.49 NK series
NK155/32 155 180 32 114 252 1.2 NK series
NK155/42 155 180 42 156 380 1.59 NK series
NK165/32 165 190 32 117 265 1.42 NK series