These gears are designed to fit shafts ranging from 4 mm to 10 mm in diameter. They are stocked with face widths ranging from 5 to 8 mm. Their sizes range from 14 to 120 teeth.
The Fairloc® system consists of two slots that are machined into the hub, one orientated radially the other angularly, to create a transverse wedge which 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. As the socket head cap screw is tightened the cantilevered section clamps the shaft securely. The screw can be tightened and released repeatedly without marring the shaft or affecting its torque transmitting abilities.
Complete technical specifications are contained in catalog Q420, which is available to free upon request from Quality Transmission Components, Division of Designatronics, Inc., 125 Railroad Avenue, Garden City Park, NY 11040-5016. Phone: 516-437-6700 Fax: 516-328-3343.