Tollok locking assemblies, also known as bushings, part of the Techdrives range, connect all sorts of hubs, sprockets, pulleys and gears to shafts without keyways, splines, circlips or collars. The connection is backlash free without fretting and can easily be dismantled and re-used. Locking bushes are also known as locking assemblies, locking elements, friction joints and bushings.
Locking bushes use precision cones to transmit forces. Clamping screws draw the cones together. As they ride over each other, the outer cone expands and grips the hub. Similarly the inner cone contracts to grip the shaft. When fully mounted the Tollok makes a backlash-free and torsionally rigid connection between hub and shaft.
A wide range of locking bush models suit different requirements. The choice depends on the mounting dimensions, the level of torque required and whether the connection needs to be self-centring.