Inside Diameter Micrometer

The inside diameter micrometer is a type of internal dimension measuring instrument that uses the principle of a screw pair to read the distance between the two spherical measuring surfaces at both ends of the main body. It is mainly used to measure internal dimensions such as hole diameters and slot widths.

Structural features:

Measuring head design:
It has two measuring contact points that act simultaneously on the inner wall of the measured workpiece. The measuring head is usually spherical, allowing good contact with the inner surface of the measured object. It is suitable for measuring relatively regular circular hole diameters.

Measuring range:
Common measuring ranges include 5–30 mm, 25–50 mm, 50–75 mm, and 75–100 mm, which can meet the measurement requirements for internal holes of different sizes

Mechanical Processing Industry:
It is used to measure the internal hole diameters and slot widths of various mechanical parts, such as the center holes of shafts, the internal holes of gears, and the inner diameters of bearing housings, ensuring that the dimensional accuracy of the parts meets design requirements.

Automotive Manufacturing Industry:
In the production of key components such as automotive engines and transmissions, it is used to measure the internal hole dimensions of parts such as cylinder blocks, cylinder heads, and crankshafts, ensuring engine assembly accuracy and performance.

Aerospace Industry:
inside diameter micrometer it is used for high-precision measurement of the internal hole dimensions of aerospace components, such as the root internal holes of aircraft engine blades and the internal holes of wing structural components, ensuring part quality and flight safety.

Mold Manufacturing Industry:
It is used to measure the inner diameters of mold cavities and the outer diameters of core pins, ensuring mold precision and forming quality.