齿轮基节检查仪
403-005	仪器工作原理 利用一个与齿廓相切的测量面以 及一沿齿面摆动的测量触头量得最小距离从而反映出基节偏差值。
	Operating principle By way of a measuring face tageut with flauk profile and a measuring contact jigging along the tooth facem the minimun distance can be measured to show the batpitch deviation.
用于检查直齿及斜齿的外齿合圆柱齿轮的基节偏差，并使用高精度的测微表指示。仪器结构紧凑，操作方便。可适用于各工厂计量室及车间。	This tester is suitable to measuring the bapitch deviation of straight and helical circular gear, the accuracy value has been indicated. This tester is available to meter rooms and workshops with compact structure, simple and easy operation.
主要技术参数 Main technical parameter
被测齿轮模数 Measuring gear module	1-16mm
仪器指示表测量范围 Tester indicating	±0.05mm
	任意20 分度内 ±0.02mm 任意50 分度内 ±0.05mm
仪器的示值误差，分度值 Error indicating and dividing	±0.002mm ±0.003mm
前后对块工作面重合度误差 Correcting block error	±0.0005mm