Easy on/easy off keyless bushing.  Locks and unlocks with a single nut fixing.
Trantorque® steel bushes are a solution to the problems of keyed mountings - in effect a keyless bushing suited to critical timing and high-torque applications. The device is a single nut locking bushing with interlocking components that ensure positive release. To select the most suitable bush for your application, choose the bore size appropriate to your shaft diameter and determine that the outside diameter and torque rating will be adequate.

Features
•Easily adjusted or removed
•Infinite positioning for precise timing or synchronisation
•High torque ratings
•Excellent concentricity
•Elimination of keys, keyways, setscrews
•Mounting hubless devices
•Infinite precise radial adjustment
•Retrofit and repair