Bearing with eccentric combination of rolling needles and deep groove balls

Abstract

The invention relates to the field of rolling contact bearings provided with rolling balls and rolling needles, in particular to a bearing with the eccentric combination of rolling needles and deep groove balls. The bearing with the eccentric combination of the rolling needles and the deep groove balls comprises an inner ring (1), an outer ring (4), rolling balls (5), a solid retainer (6), a rolling needle retainer (7) and rolling needles (8), wherein the solid retainer (6) embedded with the rolling balls (5) and the rolling needle retainer (7) embedded with the rolling needles (8) are in foreand after series connection, an inner round hole is inserted with the inner ring (1), and the outer circumference is sleeved with the outer ring (4). The bearing with the eccentric combination of therolling needles and the deep groove balls is characterized in that a center shaft (12) of the outer circle of the inner ring (1) and a center shaft (11) of an inner hole are parallel with each otherbut are not on the same straight line, and the center shaft of the outer circle of the inner ring (1) and a center shaft of the outer ring (4) are superposed on the same straight line. The bearing with the eccentric combination of the rolling needles and the deep groove balls has the advantages of simple structure, low manufacturing cost, capability of improving the working precision of an entiremachine and reducing the cost, and wide application range.

Description

technical field [0001] The invention relates to the field of rolling contact bearings with balls and needle rollers, in particular to a bearing with an eccentric combination of needle rollers and deep groove balls. Background technique [0002] Rolling bearings are components that support rotating shafts and are widely used in machines or components. The combined needle roller and deep groove ball bearing can be axially positioned in a small radial space, and can bear heavy radial load and light axial load. The radial load is partly borne by the needle roller bearing, and the ball bearing The bearing part is used to bear the axial load. The combined structure of needle roller and deep groove ball makes the ball bearing compact in structure and high in rotation accuracy, so the combination of needle roller and deep groove ball bearing is widely used in transmission engineering and various machine tools and other mechanical equipment. However, due to the limitation of proces...

AI Technical Summary

Problems solved by technology

However, due to the limitation of processing technology, the current combined needle roller and deep groove ball bearings all adopt a concentric structure in which the centerlines of the inner and outer rings are on the same straight line. Occasionally, it is difficult to meet the requirements, and the rotating shaft that works with the bearing has to be in an eccentric state. Compared with the bearing, the eccentric shaft is more difficult to process, and it is difficult to achieve a high-precision eccentric range.

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