Bearing

Abstract

The invention relates to a bearing comprising an outer bearing ring, a rolling body, a retainer, a seal cover and an inner bearing ring, wherein the outer wall of the outer bearing ring is inwards sunken to form an eccentric groove; a check ring is coated in the eccentric groove. The bearing is simple in structure and convenient to install. By utilizing the bearing, the phenomenon that the outer ring can run as the bearing is in operation is effectively prevented.

Description

technical field [0001] The invention specifically relates to a bearing. Background technique [0002] In the past, many machine parts (such as casings, end covers, etc.) made of cast iron materials (such as power, motors, water pumps, etc.) had defects such as rough surface, bulky, rusty, and complicated manufacturing processes. Since the reform and opening up, science and technology have continued to develop, and these parts have basically been replaced by aluminum alloy die-casting parts. Aluminum alloy die-casting parts have the advantages of light weight, beautiful and smooth appearance, no rust, simple manufacturing process, and high production efficiency; However, when the machine works for a long time, the temperature of the machine rises, and the parts produce thermal expansion. Since the thermal expansion coefficient of the aluminum alloy material is greater than the thermal expansion coefficient of the bearing steel, the inner diameter of the bearing is larger than...

AI Technical Summary

Problems solved by technology

[0002] In the past, many parts (such as casings, end covers, etc.) of machines (such as power, motors, water pumps, etc.) cast from cast iron materials had defects such as rough surface, bulky, rusty, and complicated manufacturing processes.

Since the reform and opening up, science and technology have continued to develop, and these parts have basically been replaced by aluminum alloy die-casting parts. Aluminum alloy die-casting parts have the advantages of light weight, beautiful and smooth appearance, no rust, simple manufacturing process, and high production efficiency; However, when the machine works for a long time, the temperature of the machine rises, and the parts produce thermal expansion. Since the thermal expansion coefficient of the aluminum alloy material is greater than the thermal expansion coefficient of the bearing steel, the inner diameter of the bearing is larger than the outer diameter of the bearing in the hot state; Therefore, when using ordinary bearings in a hot state, there will be a phenomenon that the bearings run out of the outer ring

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