Check out Hypocycloid Gear 3D model on CGTrader for $2. High-quality Polygon mesh mesh by VSJP1000: 90000 polys, 45000 vertices.
STL (Stereolithography, filesize: 15.6 MB), OBJ (OBJ, filesize: 28.5 MB), 3MF (3D Manufacturing File, filesize: 2.8 MB), STP (STEP, filesize: 1.16 MB), IGE (IGES, filesize: 1.55 MB), OTHER (Other, filesize: 3.62 MB), DAE (Collada, filesize: 16.4 MB)