• Categories:Industry news
• Author:
• Origin:
• Time of issue:2022-05-26 18:19
• Views:

(Summary description)Needle roller bearings are equipped with thin and long rollers (the length of the roller 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 the same as other types of bearings. The smallest diameter, especially suitable for supporting structures with limited radial installation size. Needle roller bearings can choose bearings without inner rings or needle roller and cage assemblies according to different applications. The surface of the hole is 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 rings, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be the same as those of the bearing ring. Needle bearing is a bearing unit composed of radial needle roller bearing and thrust bearing components. It has a compact structure, small volume and high rotation accuracy. It 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.