What Is a Needle Bearing?

Needle bearings are roller bearings with cylindrical rollers. Relative to their diameter, the rollers are thin and long. This roller is called a needle roller. Although it has a small cross section, the bearing still has a high load bearing capacity. Needle roller bearings are equipped with thin and long rollers (roller diameter D5mm, L / D2.5, L is the roller length) The radial structure is compact. When the inner diameter size and load capacity are the same as those of other types of bearings, the outer diameter is the smallest. It is especially suitable for support structures with limited radial installation dimensions.

In addition to the listed in the catalog, it can be used for general engineering bearings, such as: open stamped outer ring

Installation of full complement needle roller bearings, usually with an auxiliary sleeve

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Needle roller bearings have large bearing capacity and are suitable for supporting structures with restricted installation dimensions.

Needle roller bearings are equipped with thin and long rollers (roller length is 3 to 10 times the diameter, straight

Needle bearing

Diameter is generally not greater than 5mm), so the radial structure is compact, and its inner diameter and load capacity are the same as those of other types of bearings, and its outer diameter is the smallest, which is especially suitable for support structures with limited radial installation dimensions. Needle roller bearings are used according to different applications. The machining accuracy and surface quality should be combined with bearing rings and applications. Needle roller bearings are bearing units that combine radial needle roller bearings and thrust bearing components. ^[1]