The solid collar needle Roller Bearing
has compactstructure, small radial size and large load carrying capacity. It is suitable for the parts of which the radialoverall size is limited. It is also wide applied to thesituation where the shaft or housing has the swinging motion.In general, the needle roller bearing only withstands theradial load, not the axial load. When the shaft has axial load, itcan be used in combination with other bearings.However, it does not limit the axial shift of shaft or housing.The limiting rotational speed of needle roller bearing is lower.In high rotational speed of main machine, the needle rollerbearing with cage shall be chosen as far as possible.In compassion with other types of Needle Roller Bearings
, under the situation of same radial size, the needle roller bearing has the large load carrying capacity and high rigidity but has highfriction torque.This kind of bearing has many series with different structure
and size. It is requested that the hardness, processing accuracy and surface roughness of shaft journal surface and
rolling surface of outer housing be same as those of the collarof bearing. As for the needle roller with G2 class, the diameter varies within 2μm in group. Except the full complement needle Roller Bearings
, they have the rigid cages, which can correctly guide the parallel axis line of needle roller.