Universal K-series needle roller assembly

The universal K series needle roller assembly is a centripetal needle roller unit (commonly known as "chicken cage bearing", complying with JB/T 7918 standard) consisting only of needle rollers and retaining frames without inner/outer rings. It relies on quenched and finely ground shaft necks and bearing seat holes as raceways, with extremely compact radial space and strong load-bearing capacity per unit area. It is suitable for pure radial heavy load and thin design, and is widely used in space sensitive transmission scenarios such as gearboxes, motors, and agricultural 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）
K105X113X30 105 113 30 72 197 0.176 Universal K-series needle roller assembly
K110X117X24 110 117 24 56 158 0.216 Universal K-series needle roller assembly
K110X117X34 110 117 34 77.5 235 0.172 Universal K-series needle roller assembly
K110X118X30 110 118 30 78 219 0.205 Universal K-series needle roller assembly
K115X123X27 115 123 27 63 170 0.217 Universal K-series needle roller assembly
K115X125X34 115 125 34 95 241 0.2 Universal K-series needle roller assembly
K120X127X24 120 127 24 59 174 0.33 Universal K-series needle roller assembly
K120X127X34 120 127 34 81 260 0.165 Universal K-series needle roller assembly
K125X133X34 125 133 34 87 260 0.222 Universal K-series needle roller assembly
K125X133X35 125 133 35 86 260 0.275 Universal K-series needle roller assembly
K125X135X35 125 135 35 100 265 0.275 Universal K-series needle roller assembly
K130X137X24 130 137 24 61 186 0.35 Universal K-series needle roller assembly
K130X137X34 130 137 34 84.5 277 0.17 Universal K-series needle roller assembly
K135X143X35 135 143 35 91 290 0.24 Universal K-series needle roller assembly
K135X150X38 135 150 38 145 325 0.3 Universal K-series needle roller assembly
K145X153X26 145 153 26 74 225 0.59 Universal K-series needle roller assembly
K145X153X28 145 153 28 80.5 247 0.262 Universal K-series needle roller assembly
K145X153X36 145 153 36 98 325 0.252 Universal K-series needle roller assembly
K150X160X46 150 160 46 147 470 0.3 Universal K-series needle roller assembly
K155X163X26 155 163 26 75 236 0.57 Universal K-series needle roller assembly