The needle roller and cage assembly is an independent bearing element, where each needle roller is precisely guided and held by the cage. It achieves a bearing design with high load capacity and high rigidity in the smallest structural space. The wide spacing between the two guiding surfaces of the cage ensures precise guidance of the needle roller and cage components. The needle roller and cage components are suitable for use as raceways for shafts and seat holes. Under shafts and seat raceways with high dimensional and geometric accuracy, the highest rotational accuracy can be achieved

The working clearance of the shaft depends on the tolerance of the inner and outer raceways, the difference in the needle roller group, and the working temperature

Centripetal needle roller and cage assembly K, K D-type, this type of bearing only has a set of radial needle rollers and cage components, with a small outer diameter size, suitable for components with particularly limited radial dimensions, and used to withstand radial loads. K. ZW. K… ZWVD type is a double row radial needle roller and cage assembly. Due to the absence of a ring, the matching journal surface and housing hole surface are directly used as rolling surfaces, requiring a surface hardness of HRC60 and a surface roughness Ra value of no more than 0 63um. To meet the requirements of the host, this type of bearing can be machined into a split type for easy assembly and disassembly K. . D represents partition, single column K. ZWVD represents partition, double column

K single row centripetal needle roller and cage assembly

K… ZW double row centripetal needle roller and cage assembly

K… D split single row centripetal needle roller and cage assembly

K… ZWD split double row centripetal roller and cage assembly