In order to meet the installation requirements, the NAV needle bearing adopts a split wide inner ring for easy assembly and disassembly. The inner ring is equipped with clamping rings on both sides, which can play a complete set and matching role. Its performance is the same as the 3000 model.

Solid ring needle roller bearing has compact structure, small radial size, large load capacity, and is applicable to parts with limited radial contour size. It is also widely used in the case of shaft or shell swing. Solid ring needle roller bearing can only bear radial load, not axial load. When there is axial load, the needle roller bearing with cage should be selected as far as possible. Compared with other types of needle roller bearings, the needle roller bearing with cage should be selected as far as possible under the condition of the same radial size and the high speed of the main engine. Compared with other types of needle roller bearings, the needle roller bearing has the largest load under the same radial size, and its rigidity is higher, but its friction torque is also larger.

This type of bearing has a variety of structures and size series. It is required that the rolling surface hardness, machining accuracy and surface roughness of the journal or shell should be the same as that of the bearing ring. The diameter variation of the assembled G2 grade needle roller is within 2um. Except for the fully loaded needle roller bearing, the steel cage is used to correctly guide the parallel axis of the needle roller.

The solid ring needle roller bearing is composed of one or two rings and a needle roller group with a cage. It has smaller volume and higher bearing capacity. Therefore, this kind of bearing can meet the requirements of light weight, small space occupation and large transmission power. Bearing with or without inner ring can be used according to different applications.