Needle roller bearings (needle bearing) is a cylindrical roller with roller bearings, relative to its diameter, roller both thin and long. This is called needle roller. Despite having a smaller cross-section, has a higher load bearing capacity, thin and long needle bearing mounted roller (roller diameter D≤5mm, L / D≥2.5, L is the length of the roller), so radial structure is compact NA4922 needle roller bearings, the diameter size and load capacity with other types of bearings, minimum diameter, especially for radial mounting dimensions restricted support structure. Depending on different occasions, can be used without an inner ring of the bearing or needle roller and cage assemblies NA4920 needle roller bearings, then journal surface and the surface of the bearing shell holes match directly as the bearing, the outer rolling surface, in order to ensure the load capacity and operating performance and have the ring bearing the same NA4822 needle roller bearings, shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be similar bearing ring raceway. Such bearings can only bear radial load. Governance and needle strength, rich experience, the majority of consumer recognition, is the best choice for you to buy the needle bearing. Governance and needle roller bearings specializing in bearing design, with a sophisticated production equipment and perfect detection means to produce the type of needle roller bearings for supporting cooperation between domestic and foreign customers, "Quality is the survival of the enterprise, integrity is based enterprise development" is my Factory essence of corporate culture. NA4920 needle roller bearings, needle roller bearings, needle roller provided by LINQing municipal governance and needle roller bearings plant. Linqing municipal and needle roller bearings plant (www.zhgzzc.com) strong, credible, in other industries, Liaocheng accumulated a large number of loyal customers. The company better work attitude and constantly improving governance and innovative ideas will lead you hand needle and into the brilliant, for a better future!