Seal bearing

Abstract

The invention relates to a seal bearing which comprises a bearing outer ring, a bearing inner ring, rolling bodies, a seal element and an electric conducting component, wherein the rolling bodies are arranged in a rolling path of the bearing outer ring and the bearing inner ring; the seal element is arranged between the bearing inner ring and the bearing outer ring; the outer ring of the seal element is provided with an outer lip; the inner ring of the seal element is provided with an inner lip; the outer lip is arranged in a seal groove of the bearing outer ring; the inner lip is arranged in a seal groove of the bearing inner ring; an electric conduction groove is arranged between the bearing outer ring and the rolling bodies; and the electric conducting component is arranged in the electric conducting groove. The seal bearing provided by the invention has the advantages that the seal element and the bearing are in surface contact, which adapts to the seal requirement in the rotation process; a ventilation groove enables the air outside to enter the bearing, thus negative pressure can not be generated in the bearing; and the electric conducting component can guide the static current generated in the inner ring to the outer ring, further the static electricity generated in the rotation of the bearing is guided out, the static electricity is prevented from accumulating in the bearing, and the safety and reliability of the bearing are improved.

Description

technical field [0001] The invention relates to a bearing, especially a sealed bearing. Background technique [0002] Bearing seals are the key components for the normal operation of bearings in harsh environments. They protect the bearings from erosion and pollution, so that the bearings can prolong their life under good clean and lubricated conditions. [0003] Bearings are subject to high loads, strong impacts and the intrusion of hydrated rust in use. Under polluted working conditions, it is very easy for debris to enter the bearing, and these debris will damage the raceway and cause stress concentration. In addition, if the lubrication is not uniform, the metal surface will be in hard contact, causing microscopic "peeling" damage. This leads to stress concentration in the contact area, both of which lead to tearing of the metal surface at the stress concentration point and ultimately shorten bearing life, so bearing seals are required to prevent the ingress of impuriti...

AI Technical Summary

Problems solved by technology

However, when the bearing rotates with the shaft at high speed, it is easy to generate static electricity. The insulation between the inner ring and the outer ring of the ordinary bearing has poor conductivity, and it is impossible to eliminate the static electricity generated by the bearing during high-speed rotation. When the static electricity accumulates to a certain extent, it will generate Sparks, there is a possibility of fire, there is a safety hazard

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