Fairloc® is the better way to fasten rotating components to a shaft. Its unique design is superior to comparable fasteners for high-torque applications. It is easy to adjust, compact in size, reduces misalignment, and won't mar the shaft.
Fairloc® uses two slots machined into the hub; one oriented radially and the other angularly. Unlike some similar designs, the hub remains in one piece. The slots create a transverse wedge that remains attached to the solid portion of the hub on one side. The resultant cantilevered clamping section has a tapped hole to accept a cap screw which passes through a clearance hole in the solid portion of the hub, and into a threaded hole in the transverse wedge section. Turning the cap screw clamps the cantilevered wedge section securely against the shaft. The screw can be tightened and released repeatedly without marring the shaft or affecting its torque transmitting abilities.
Stock Drive Products/Sterling Instrument (SDP/SI) manufactures thousands of small mechanical parts that feature the Fairloc® Hub including precision gears, couplings and pulleys. Apply the Fairloc® concept to your design.
Established in 1950, SDP/SI is the company that engineers and OEMs depend on for high-quality components, subassemblies, and engineering expertise. When a standard part won't meet your requirements, we can provide alternative solutions through custom design and manufacturing. By providing design, development, manufacturing, assembly and testing in one location, we can ensure that the end product will meet your expectations. For prototype to large production runs, you can rely on SDP/SI.