olling can be divided according to the shape of the rolling element

n the work of bearing rolling friction. Rolling is a high degree of standardization of parts interchangeability, less lubricant consumption, mostly use grease lubrication, easy maintenance, reliable, static friction torque dynamic friction torque approaching, good starting performance at moderate speeds higher carrying capacity . However, high speed, low life sound bigger. Can be divided according to the direction of rolling bearing radial bearings and thrust bearings (see figure). Radial bearings mainly bear radial force, but also can withstand small axial force; thrust bearings can withstand axial force. Radial thrust bearings can support radial and axial forces. Rolling can be divided according to the shape of the rolling element
Rolling
Ball Taper bearing  roller bearings and needle roller bearings. High speed, load is small, requiring high precision rotation should use ball bearings; load is large roller bearings should be selected; loading large radial dimensions should be selected when they restricted needle bearing. Radial bearing rings of the inner and outer ring, inner ring and the shaft sleeve and often with the shaft rotates, the outer ring mounted in the bearing bore. Rolling rolling along the raceway rings, separated by the cage, to avoid friction between. Thrust bearings are divided into a tight circle and live ring in two parts. Tight circle and sleeve tight, live ring bearing in the bearing housing. Rings and rolling body with high strength, good wear resistance bearing steel, surface hardness after quenching should reach HRC60 ~ 65. Cage mostly made of mild steel stamping, and some copper alloy, bakelite cloth or plastic. Basic types listed in the table produced in China basic types of rolling bearings. Various types of rolling bearings is divided into B, C, D, E, G5 a precision. B is the highest accuracy level. G is the general accuracy level, the most common. High speed