Check out Cylindrical gear - paired - z20 m2 D44 d12 3D print model 3D model on CGTrader for $3. High-quality mesh by RTT-Studio. 3D Print Ready.
SLDPRT (SolidWorks, filesize: 271 KB), FBX (Autodesk FBX, filesize: 591 KB), STP (STEP, filesize: 973 KB), IGE (IGES, filesize: 1.33 MB), STL (Stereolithography, filesize: 2.3 MB)