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Types and Characteristics of NSK Rolling Bearings---Needle Roller Bearings
Source: this site     Release time:2021-12-16

NSK needle roller Bearing has many structural forms. The bearing is equipped with multiple long and slender needle rollers, so the ratio of the diameter of the inscribed circle of the needle roller to the outer diameter of the bearing is small, and it has a relatively large radial load. ability.
There are many types of needle roller bearings, and many have no inner ring. According to the direction of the load, they can be divided into radial bearings and thrust bearings. Among them, radial bearings include: outer ring needle roller bearings with outer ring stamped from steel plates, solid needle roller bearings with car-made outer rings, bolt type and retaining ring type roller needle roller bearings for special purposes, and various types with or without inner ring. Needle roller bearings without cages and other structural forms. Needle roller bearings with cages mainly use steel stamping cages.

Needle Roller and Cage Assembly
NSK Needle Roller and Cage Assembly are easy to install and use, and the needle rollers will not fall off when they are assembled. The design space occupied is small, but it has a large carrying capacity. Due to the unique structure of the cage, the needle rollers can be accurately guided, the lubrication is ideal, and it can be used at high speeds. The needle roller has a convexity, which can alleviate the stress concentration at the end of the needle roller caused by the small installation error and the deformation of the shaft, and prolong the service life of the bearing.

Drawn Cup Needle Roller Bearing
NSK Drawn Cup Needle Roller Bearings (with cage type and full complement needle roller type) have a unique outer ring structure, and are among the many bearings in rolling bearings, including : The outer ring has a thin wall and a large load capacity; it is made of a strictly selected special alloy steel plate, which has a high limit load; the cage is surface-hardened, and has strong wear resistance; high limit speed, easy installation, etc.

Solid Needle Roller Bearing
Solid Needle Roller Bearings have high precision, occupy small design space and have strong bearing capacity. Its application is very extensive. The ferrule is made of vacuum degassed bearing steel or carburized steel which has been strictly selected. After heat treatment, it is subjected to fine grinding. In the outer ring with firm double rib, there are several high-precision needle rollers with certain convexity. The cage is light in weight and tough enough to guide large diameter needle rollers precisely and smoothly.

Thrust Bearing
Thrust needle roller bearings are available in metric and inch sizes.
The cage in the thrust needle roller and cage assembly is made by precision stamping and surface hardening of two half-cage interlocking steel plates. High precision needle rollers are assembled into the cage, making it high strength and wear resistance. The needle roller is completely retained by the cage, which can bear a large axial load and rotate smoothly at the same time. Moreover, the assembly space is small, and it is easy to replace the original thrust washer (general term for shaft washer and seat washer, the same below). The needle roller and cage assembly is equipped with several thrust washers with different thicknesses, so the thickness of the thrust washers can be selected according to the assembly conditions around the bearing.

Bearing for Bolt Type Needle Roller Bearing
Bearing for Bolt Type Needle Roller Bearings withstand shock loads.

Retaining Ring Needle Roller Bearing
Retaining Ring Needle Roller Bearings have thick outer ring wall, convex needle rollers, high load capacity, and can withstand shock loads. This type of bearing is non-separable and easy to use, and is widely used in rollers, cams, rocker arms, etc.

Drawing cup needle roller clutch Bearing
With a unique drawn cup structure, it is a very compact one-way clutch bearing. It has the characteristics of light weight, small section size and large moment capacity. This type of bearing has precise action, small friction torque when overrunning, and is easy to install. In addition, there are FCP/FCU series products for plastic bearing housings.

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