Sealing waterproof structure of deep groove ball bearing

Abstract

The invention relates to a sealing waterproof structure of a deep groove ball bearing. The sealing waterproof structure of the deep groove ball bearing comprises an inner ring, an outer ring, a steel ball, a retainer and a sealing device. An inner groove and an outer groove which are used for accommodating the steel ball and allowing the steel ball to slide therein are formed in the inner ring and the outer ring correspondingly. The inner groove and the outer groove are each a combined groove which is composed of two arcs, wherein the curvatures of the arcs are larger than the curvature of the steel ball, and the two sides of each arc are symmetrical. The sealing device comprises a first sealing ring and a second sealing ring, wherein the first sealing ring is arranged on one sides of the inner ring and the outer ring, and the second sealing ring is arranged on the other sides of the inner ring and the outer ring. A vacuum airtight environment is formed through the inner ring and the outer ring, dust and water vapor are prevented from entering the bearing, and thus the sealing effect of the deep groove ball bearing is effectively ensured.

Description

Technical field [0001] The invention relates to the technical field of deep groove ball bearings, in particular to a sealed and waterproof structure of deep groove ball bearings. Background technique [0002] Deep groove ball bearing is a type commonly used in rolling bearings. It is basically composed of inner ring, outer ring, a set of steel balls and cage. The structure of deep groove ball also includes sealed deep groove ball, which is mainly stamped by steel plate material. A good dust-proof seal cover will form a simple sealing effect between the inner and outer rings, but only play a simple role in preventing dust from entering the bearing raceway. The waterproof effect is poor and the lubricating grease is easily exposed. Once the bearing enters the water during operation, It will reduce grease lubrication, increase bearing wear, and ultimately lead to a significant reduction in bearing life and even damage, which will cause production accidents. Summary of the invention...

AI Technical Summary

Problems solved by technology

[0002] Deep groove ball bearing is a type commonly used in rolling bearings at present. It is basically composed of an inner ring, an outer ring, a set of steel balls and a cage. The deep groove ball structure also includes sealed deep groove balls, which are mainly stamped from steel plates. A good dust-proof sealing cover forms a simple sealing effect between the inner and outer rings, but it only serves to prevent dust from entering the bearing raceway. The waterproof effect is poor, and the lubricating grease is easily exposed. Once the bearing enters water during work, It will reduce the grease lubrication and increase the wear of the bearing, which will eventually lead to a great reduction in the life of the bearing or even damage, which will cause production accidents

Images