SPHERICAL SLIDE BEARING, AND MANUFACTURING PROCESS THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a light-weight spherical surface bearing, whose inner race has an outer circumference of sufficient hardness.SOLUTION: A spherical surface bearing comprises: an inner ring having an inner circumference for defining a bearing hole and a spherical outer circumference; and a housing for holding said inner ring slidably. Said outer circumference is a continuous surface having no seam. A cavity part is formed between the outer circumference and the inner circumference of said inner ring. There is formed a communication hole for causing said cavity part to communicate with the outside of said inner ring.SELECTED DRAWING: Figure 2