Measure the Cylindricity (CYLt)

A cylinder is a geometric body, consisting of two parallel opposing circular surfaces (base and upper surface) and a rectangular shell surface, which is vertical to the circular surfaces. Cylindricity is the deviation of a measured cylinder from geometrically ideal cylinders. The toleranced element is the cylinder surface.

The tolerance zone is limited by two coaxial cylinders at distance t in the cylinder shape tolerance.

Technical drawing: Measuring cylindricity