MYNOV is a single sign-on solution.
Access multiple NOV applications and services with one login.Register here Sign in
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.