Dial Indicator Gauge
This measuring instrument has a circular graduated face and a pin which activates a rotating pointer to measure variation in movement in thousands of an inch.
A dial indicator is used to measure shaft runout, shaft thrust, gear backlash, flywheel face runout, flywheel housing concentricity, and valve seat concentricity.
See also: Height Gauge, Micrometer, Total Indicated Reading.
Subjects: Mechanical Engineering Tools