This is a design of the V-Belt and Pulley Assembly which can be used for industrial purposes. It is used in a lot of industrial applications such as milling and conveyors because of its low cost, ease of installation, and a wide range of sizes. It can rotate at higher speeds than flat belts because of the difference in the size of the pulleys.
SLDPRT (SolidWorks, filesize: 443 KB), FBX (Autodesk FBX, filesize: 293 KB), STP (STEP, filesize: 364 KB), STL (Stereolithography, filesize: 269 KB)