Rolling bearing sealing element and rolling bearing sealing structure

Abstract

The invention discloses a rolling bearing sealing structure, belonging to a rolling bearing. Aiming at the disadvantage of difficult manufacture of the existing sealing element, the structure of the invention is characterized in that at least one end of the two ends of an inner ring is provided with an exposed inclined surface; the inner edge of the sealing element forms at least two parallel annular sealing bulged ribs; each sealing bulged rib is provided with at least a notch; the notches on the two adjacent sealing bulged ribs are staggered at a certain angle on the circumference; and the annular sealing bulged ribs contact with the exposed inclined surface so that the sealing match of the sealing element and the inner ring is realized. The invention has the advantages that the dimension of the annular sealing bulged ribs is small; the requirements of low operation friction, low abrasion, low temperature rise, high limit rotating speed and good sealing property are realized; the notches on the two adjacent sealing bulged ribs are staggered at a certain angle on the circumference, thus the routes of the dust entry and the grease leakage are prolonged and the reliable sealing is realized; and the sealing element structure that the notches are formed on the sealing bulged ribs is conveniently manufactured through a mould.

Description

Technical field [0001] The invention belongs to a rolling bearing, in particular to a structure that realizes the sealing of the rolling bearing by improving the structure of the seal. Background technique [0002] The existing rolling bearings are mainly composed of an inner ring, an outer ring, and rolling elements and seals in between. The seals are usually stationary relative to the outer ring and rotate relative to the inner ring when rotating. [0003] Faced with the demanding market requirements and the actual production situation, some manufacturers, on the one hand, in order to test the comprehensive effect of the static bearing of the bearing, on the other hand, in order to pursue "absolute sealing", each set of bearings is tested for sealing: at one end of the bearing Assemble the seal, the other end is not equipped with a seal and upwards, put a piece of paper under the bearing, pour kerosene into the bearing, and place it horizontally for hours to see if there is any l...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defect that the existing seals are not easy to manufacture, and provide a rolling bearing seal and a rolling bearing sealing structure

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