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Xue Jinyin

Xue Jinyin

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Company News

The advantages and disadvantages of needle and ball?2021-11-10 14:41:25
The advantages and disadvantages of needle and ball?

Advantages of needle roller bearings: 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 greater than 5mm), so the radial structure is compact. When the inner diameter and load capacity are the same as other types of bearings, the outer diameter is the smallest, which is especially suitable for supporting structures with restricted radial installation dimensions. Needle roller bearings are used in different occasions, and the machining accuracy and surface quality should be combined with the bearing ring and purpose. The needle roller bearing is a bearing unit composed of a radial needle roller bearing and a thrust bearing component.


Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling element and cage. Strictly speaking, it is composed of six parts: outer ring, inner ring, rolling element, cage, seal, and lubricating oil.