SPHERICAL BODY POLISHING DEVICE AND SPHERICAL BODY POLISHING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a spherical body polishing device capable of improving the sphericity of a spherical body while using two rotating discs.SOLUTION: A first grinder (23) is supported in a radial direction and a thrust direction by a first hydrostatic bearing (24) held in a first body section (21). A second grinder (33) is supported in the radial direction and the thrust direction by a second hydrostatic bearing (34) held in a second body section (31).SELECTED DRAWING: Figure 1