| 摘要 |
PURPOSE: A bush bearing is provided to prevent a damage of a surface of a subject by removing an edge portion while forming an oil groove. CONSTITUTION: A bush bearing comprises a hollow cylindrical shape body(100), a plurality of oil grooves(110), and an oil inflow hole(120). The oil groove is formed in the inner circumference of the body along an axial direction of the body. An axial length of the oil groove is shorter than a length of the body. The oil inflow hole penetrates the outer circumference and inner circumference of the body, thereby making the oil flow into.
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