Introduction of Needle Roller Bearings
2022-08-26
Needle roller bearings are equipped with thin and long rollers (the length of the rollers is 3~10 times the diameter, and the diameter is generally not more than 5mm), so the radial structure is compact, and its inner diameter and load capacity are similar to other types of bearings. At the same time, the outer diameter is the smallest, which is especially suitable for the support structure with limited radial installation size. Needle roller bearings can choose bearings without inner rings or needle roller and cage assemblies according to different applications. At this time, the journal matching the bearing The surface and the surface of the housing hole are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure the same load capacity and running performance as the bearing with a ring, the hardness, machining accuracy and surface quality of the surface of the shaft or the raceway of the housing hole should be the same as that of the bearing ring. Purpose Combination needle roller bearing is a bearing unit composed of radial needle roller bearing and thrust bearing components. It has a compact structure, small volume, high rotation accuracy, and can bear a certain axial load while bearing a high radial load. And the product structure is diverse, adaptable and easy to install. Combined needle roller bearings are widely used in machine tools, metallurgical machinery, textile machinery and printing machinery and other mechanical equipment, and can make the mechanical system design very compact and flexible.
The bearings we produce are mainly used for: automobile parts, motorcycle parts, textile machinery, packaging machinery, food machinery, other machinery, etc
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