Simple gauge for shaft center hole depth measurement

摘要

The content of this study is that it is simple and convenient to measure the depth of the central hole of the shaft.For the depth measurement of the shaft center hall, the spacer (10), the shell (11) noted in the previous specification (10), the rod (12) inserted in the previous case (11), the spring (14) transmitting the external force and the supporting rod (16) of the previous spring (14) are used The utility model is composed of a ball (15) which is stable in the central hole (5) of the axis (4).Therefore, the measurement error is small and easy to measure.