Keyless Locking Elements

These keyless locking elements are commonly used in pulley assemblies, to clamp hubs onto shafts without keyways or set screws, using a self-centring, taper-ring mechanism that transmits high torque. This provides precise, easily adjustable, and reusable shaft fixing across a range of hub sizes. The self-centring action during tightening helps ensure the hub runs true on the shaft, reducing vibration compared to a poorly centred keyed fitting.