YDTech® manufacturer of precision K(KK/KKS,K/KS, KBK/KZK) needle roller(ball)bush and retainer cage assemblies; supplier of loose needle roller(ball) and maintain aircraft components(K,AXK KZK, D, ZW, ZWD) in china.

needle roller and cage assemblies are offered in single or double row, solid or split cage, metric and inch sizes; as well as in connecting rod bearings for special applications.

needle roller and cage assemblies are an excellent choice for applications that require a very rigid bearing arrangement as well as a high load carrying capacity. If the shaft and housing bore can serve as raceways, needle roller and cage assemblies require minimal radial space.

needle and keep components, is actually no collar of needle roller bearing, this kind of bearing used for transmission, motorcycle, automobile connecting rod of large and small. due to the high temperature in the cylinder, so the bearing to high temperature.

there are single-row K-type and double-row K...ZW-type for this kind of bearings. special dissectible structure of single row K...D-type and double row K...ZW-type can be adopted for supporting in the concave neck of crankshaft when complete assembly can not be carried out. various structural styles, such as lathed & punched type, M & K type etc. are available for choice and use on different occasions, and it can also be designed according to the special structural requirements of customers.

needle roller and cage assemblies that are mounted immediately adjacent to each other must incorporate rollers of the same gauge. This will enable both assemblies to share the load equally.

axial needle roller and cage assemblies comprise plastic or metal axial cages with integrated needle rollers and have a very small axial section height. they can support high axial forces in one direction. radial loads must be supported by separate means. Axial needle roller and cage assemblies require hardened and ground axial running surfaces for use as raceways.

needle roller and cage assemblies are offered in single or double row, solid or split cage, metric and inch sizes; as well as in connecting rod bearings for special applications. single and double row bearings are available with or without ribs, and with or without inner rings. thrust bearings are offered in single row roller and cage assemblies.

axial needle roller and cage assemblies (K series)