Rotor Measurement and Comparator Tools

Measuring your rotors and stators allows you to monitor wear on your equipment, giving you confidence in the performance of your power sections.


Our rotor measurement and comparator tools are designed as a simple and accurate way to measure the rotor dimensions of downhole motors. A single rotor measurement tool provides direct measurement of rotor major diameters for downhole motors ranging from 2⅞-in. outside diameter (OD) to 11¼-in. OD, while a series of rotor comparator tools provides direct measurement of the rotor lobe height over the same range.

  • Stator and Rotor Measuring Tools Spec Sheet