Automatic Micro Motor Shaft Surface Marking Machine (Polygon mesh 3D model) is available on CGTrader for $169. Original author: Lovano. Specs: 1293875 polys, 3881619 verts.
SLDPRT (SolidWorks, filesize: 56.3 MB), OBJ (OBJ, filesize: 90.9 MB), STL (Stereolithography, filesize: 61.7 MB), STP (STEP, filesize: 23.1 MB), IGE (IGES, filesize: 89.8 MB)