Smooth limit gauge is a special measuring tool without marking, it can not determine the actual size of the workpiece, can only judge the workpiece qualified or not. Because the gauge structure is simple, easy to manufacture, convenient to use, and can ensure the interchangeability of the workpiece in production, it is widely used in batch mass production. Smooth limit gauges are mainly divided into three categories: plug gauge, ring gauge and snap gauge.
    Plug gauge It is a smooth limit gauge used for aperture inspection, and the measuring surface is an outer cylinder, a sphere, etc.Among them, the plug gauge size having the minimum limit size of the detected aperture is the hole pass gauge, and the one having the maximum limit size of the detected aperture is the hole stop gauge.
    Ring gauge It is a smooth limit gauge for shaft diameter inspection, and its measuring surface is an inner torus.Among them, the ring diameter with the maximum limit size of the inspected shaft diameter is a pass gauge for shaft, and the one with the minimum limit size of the inspected shaft diameter is a stop gauge for shaft.

    Snap gaugeIs a smooth limit gauge used for shaft diameter inspection, the measuring surface is two parallel inner surfaces.Among them, the distance between two measuring surfaces with the maximum limit size of the inspected shaft diameter is a pass gauge for the shaft, and the one with the minimum limit size of the inspected shaft diameter is a stop gauge for the shaft.

    We focus on micro precision, is a professional precision parts size pneumatic measurement equipment manufacturer, if you Billion leride Equipment interested, welcome to click on our online customer service for consultation, or directly call the national unified service hotline 400-682-7787 . We look forward to your call!