Generic conveyor belt, ready to modify at will, has too many details to texture to your liking, there are different file formats, please check if they are the ones you require.
OBJ (OBJ, filesize: 83.8 MB), 3DS (3D Studio, filesize: 11.5 MB), MAX (Autodesk 3ds Max, filesize: 118 MB), RFA (Autodesk Revit, filesize: 6.56 MB)