Roundness is a property of a surface of revolution where all points on the surface are equidistant from the axis. The roundness of any profile can only be specified if the same center is found for the measurement. Diameter and roundness are measured by different methods and instruments. For diameter

Roundness measurementRoundness is defined as the condition of a surface of revolution. In the case of cylinders and cones, all points of the surface intersect any plane perpendicular to a common axis.Equipment for measuring roundness 1) Diameter gauge. 2) Circumferential conferring gauge=> the shaf

The roundness meter is a measuring tool that uses the rotary axis method to measure the roundness error of the workpiece. The roundness meter is divided into two types: sensor rotary type and table rotary type. During measurement, the DUT is installed concentrically with the precision shaft, which carries the inductive length sensor or the table for precise circular motion.