https://sdp-si.com/fairloc
Our Fairloc® Integral Fastener is a clamping device placed right on the hub of timing pulleys, gears, couplings and more. Using set screws to clamp components can sometimes mar or damage your shaft. Fairloc® helps to prevent that because it camps components without the use of set screws. It also allows for quick and easy adjusting and readjusting of components on shafts.