Sliding bearing and sliding bearing assembly
AssigneeDoosan Infracore Co., Ltd.
InventorChung Rae Lee
Life of this patent
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Abstract
The present disclosure relates to a sliding bearing, and more specifically to a sliding bearing in which lubricating properties are improved by providing lubricating-oil-storage locations in the inner circumferential surface and the outer circumferential surface. The sliding bearing of the present disclosure has properties which are particularly advantageous when used under surface-pressure conditions of from 100 to 1,000 kg/cm2 and speed conditions of from 0.005 to 0.1 m/second.
Claims10
A sliding bearing having an inner circumferential surface and an outer circumferential surface is applied to a joint of a machine under a surface pressure of 100 to 1000 kg/cm2 and at a speed within the range of 0.005 to 0.1 m/sec,
- wherein a first lubricant storage, of which the ratio of the area of the first lubricant storage to the inner circumferential surface is from 15 to 60%, is formed on the inner circumferential surface being in contact with a shaft,
- wherein a second lubricant storage, of which the ratio of the area of the second lubricant storage to the outer circumferential surface from 15 to 40%, and connected with the first lubricant storage by connection through-holes thus supplying the lubricant to the first lubricant storage, is formed on the outer circumferential surface,
- wherein the first lubricant storage is composed of a plurality of grooves formed on the inner circumferential surface and the grooves have at least two different shapes and are separated from each other,
- wherein the grooves include at least one of dimple-shaped grooves having a circular groove-forming surface and pocket-shaped grooves having different axial lengths and circumferential lengths.
A sliding bearing having an inner circumferential surface and an outer circumferential surface is used under a surface pressure of 100 to 1000 kg/cm2,
- wherein a first lubricant storage, of which the ratio of the area of the first lubricant storage to the inner circumferential surface is from 15 to 60%, is formed on the inner circumferential surface with rubbing against its facing surface,
- wherein a second lubricant storage, of which the ratio of the area of the second lubricant storage to the outer circumferential surface from 15 to 40%, and connected with the first lubricant storage by connection through-holes thus supplying the lubricant to the first lubricant storage, is formed on the outer circumferential surface,
- wherein the first lubricant storage is composed of a plurality of grooves formed on the inner circumferential surface and the grooves have at least two different shapes and are separated from each other,
- wherein the volume defined by the first lubricant storage and the second lubricant storage is 5 to 30% of the entire volume of the sliding bearing.
Dependencies are inferred from the claim text.