CURVED TRENCH BALL BEARING

摘要

Disclosed is a curved trench ball bearing, which is composed of an outer ring (1), a group of steel balls (2), a group of cages (3) and an inner ring (4). The outer ring (1) and the inner ring (4) are provided with trenches in which the steel balls are inlaid, wherein at least one trench is an "S"-curved circular arc trench which is connected end to end, and the other trench can be a linear circular arc trench or an "S"-curved circular arc trench; and the number of peaks and the number of valleys of the S-curved circular arc trench are both equal to the number of the group of steel balls or are an integral multiple of the number of the steel balls. By means of this structure, a bearing can achieve the displacement of reciprocating rectilinear motion while rotating, thereby simplifying a mechanical structure of a kneading roller.