Double-row full-ball self-aligning ball bearing with large self-aligning angle

Abstract

The invention discloses a double-row full-ball self-aligning ball bearing with a large self-aligning angle, and belongs to the technical field of bearings. The double-row full-ball self-aligning ball bearing with the large self-aligning angle solves the problems that an existing self-aligning ball bearing is small in self-aligning angle range, and cannot meet special working condition needs of low starting torque and a large operating angle. The double-row full-ball self-aligning ball bearing comprises an outer ring, an inner ring, two dustproof covers and a plurality of rolling bodies, wherein the middle cross section of the outer radial surface of the inner ring and the cross section of the inner radial surface of the outer ring are in the shape of circular arc; a curvature center of the inner radial surface of the outer ring is consistent with that of the middle of the outer radial surface of the inner ring; two ring-shaped roller paths which are arranged side by side are arranged in the circumferential direction on the outer radial surface of the inner ring; the two ring-shaped roller paths are symmetrically arranged with respect to the radial central line of the inner ring; the plurality of rolling bodies are tightly arranged in the two ring-shaped roller paths separately; the dustproof cover is a ring-shaped plate; and the two dustproof covers are fixedly arranged at the two ends of the outer ring symmetrically, and are positioned between the outer ring and the inner ring. According to the double-row full-ball self-aligning ball bearing disclosed by the invention, the self-aligning angle of the bearing is effectively increased.

Description

technical field [0001] The invention relates to a double-row full-spherical self-aligning ball bearing with a large self-aligning angle, which belongs to the technical field of bearings. Background technique [0002] The self-aligning ball bearing is a bearing whose outer ring raceway is a spherical surface, and the curvature center of the outer ring raceway surface is consistent with the center of the bearing, and has self-alignment. It mainly bears radial load, and can bear small axial load at the same time, allowing the inner and outer rings to work normally under the condition of small relative inclination. It is suitable for components whose bearing seat holes cannot strictly guarantee the coaxiality, including precision instruments , Low-noise motors, automobiles, motorcycles, aircraft and other industries. At present, the self-aligning angle range of domestic self-aligning ball bearings is generally 0-3°; in foreign countries, it is generally 0-4°, and the maximum se...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing self-aligning ball bearing has a small range of self-aligning angles and cannot meet the requirements of special working conditions with low starting torque and large operating angle, and further provides a double-row full-length ball bearing with a large self-aligning angle. Ball self-aligning ball bearings

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