Gauge for checking radius and spherical surface

摘要

A gauge has a support for a workpiece which has a spherical section of a selected radius which is to be gauged. The gauge has a cradle which is swingable to advance a spherical surface with a known radius into engagement with an indicator which provides an indicator reading. The workpiece is clamped on the cradle for axial movement into engagement with the indicator to a position where the indicator reading is repeated. The spherical surface is moved to have all points thereof engaged by the indicator so that any changes in the reading can be noted. When the reading remains constant, the spherical surface is gauged to be the one desired of the predetermined radius.