Knuckle bearing sealing structure

Abstract

The invention relates to a knuckle bearing sealing structure. The sealing structure comprises a bearing outer ring and a bearing inner ring. A seal ring is located between the bearing outer ring and the bearing inner ring. An elastic nonmetal ring sheet serves as the seal ring. The inner side of the bearing outer ring is provided with a sealing groove corresponding to the seal ring. The outer edgeof the seal ring is embedded into the sealing groove. The inner edge of the seal ring makes spherical elastic contact with the inner ring. By adopting the knuckle bearing sealing structure, along with rotation of a bearing, the seal ring slides relative to the spherical surface of the inner ring and is abraded; the contact area of the seal ring and the spherical surface of the inner ring is increased continuously, and the sealing effect is gradually optimized; meanwhile, the seal ring is firmly fixed to the interior of the sealing groove, so that the sealing structure is simple and compact, the seal ring is firm in mounting and is not likely to fall off; and thus, the product quality is ensured.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a joint bearing sealing structure. Background technique [0002] With the advancement of science and technology, more and more technical equipment is developing in the direction of heavy load and maintenance-free, so higher requirements are put forward for the supporting joint bearings. The sealed spherical plain bearing in the prior art has a complex and uncompact sealing structure, and occupies a large effective sliding contact area, which is not conducive to the improvement of the bearing capacity and service life of the bearing. When using the skeletonless sealing ring, there are technical problems such as the sealing ring is not firmly fixed, the sealing ring is easy to fall off, the sealing effect is not good, and the quality is unstable. Contents of the invention [0003] The purpose of the present invention is to provide a joint bearing sealing structure with a simple...

AI Technical Summary

Problems solved by technology

The sealed spherical plain bearings in the prior art have a complex and uncompact sealing structure, and occupy a large effective sliding contact area, which is not conducive to the improvement of the bearing capacity and service life of the bearing

When the skeletonless sealing ring is used, there are technical problems such as the sealing ring is not fixed firmly, the sealing ring is easy to fall off, the sealing effect is not good, and the quality is unstable.

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