National Engineering Company (MENCO) offers Mecaloc Keyless Shaft Hub Locking Elements and Shrink Discs from Mayr GmbH and Co KG Germany. These shaft hub locking devices, once mounted, offer a perfect interference fit, with the case of a slide fit during assembly and disassembly to give a backlash free torque transmission.
When the locking screws are tightened, a radial pressure is produced through the taper wedge cross-section of the device to expanded into the hub and to shrink on to the shaft to cause a frictional locking between the shaft and the hub.
Mecaloc locking devices offer the most advanced solution in the field of locking elements of transmission of synchronous motion with the high power that can be transmitted by a friction coupling. Mecaloc prevents the axial movement of the drive components and will find ideal application to lock timer pulleys, gears, cams, pinions, flywheels, gearboxes, couplings, clutches, brake discs and a whole lot of components in the kinematic chain that have been designed for the transmission of mechanical power.