Sliding bearing with micro holes on inner wall thereof

Abstract

The invention discloses a sliding bearing with micro holes on the inner wall thereof, which is prepared through the steps of welding a bearing bush and a bearing lining the surface of which is uniformly provided with micro through holes; and then rolling, wherein the bearing lining is arranged in the bearing bush; the total area of the micro through holes on the surface of the bearing lining accounts for 10 to 20 percent of the surface area of the inner wall of the bearing lining; and the ratio of depth to diameter of the micro through holes on the surface of the bearing lining is 0.05 to 0.2. The sliding bearing disclosed by the invention has the advantages that the micro through holes on the bearing lining form micro grooves on the inner wall of the sliding bearing, and the micro grooves are used for storing the lubricating oil, and when sufficient lubricating oil is stored in the micro grooves, a dynamic pressure oil film is formed between the bearing bush of the sliding bearing and an axle journal rubbing pair, thereby reducing the rubbing wear; the elastic deformation of the bearing lining is enlarged, the rubbing pair is in an elastic hydrodynamic lubrication state, and the bearing is good in abrasion resistance and obvious in lubrication effect; and the bearing is simple in processing and easy to manufacture.

Description

technical field [0001] The invention relates to a sliding bearing, in particular to a sliding bearing with micro-holes on the inner wall. Background technique [0002] Sliding bearings are well known in the prior art. Under liquid lubrication conditions, the sliding surfaces are separated by lubricating oil without direct contact, which can also greatly reduce friction loss and surface wear, and the oil film also has a certain vibration-absorbing ability. A layer of antifriction material cast on the inner surface of the bearing pad to improve the friction properties of the surface forms the bearing liner. The inner wall of the bearing lining must form an oil storage structure to store lubricating oil, reduce friction and wear, and ensure the life of the sliding bearing lining-journal motion pair. The more common bearings on the market now include oil-impregnated bearings, plastic bearings, powder metallurgy bearings, etc., but there are problems such as high cost, difficult...

AI Technical Summary

Problems solved by technology

The more common bearings on the market now include oil-impregnated bearings, plastic bearings, powder metallurgy bearings, etc., but there are problems such as high cost, difficult manufacturing, and insufficient strength.

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