The RHI&A C45-KLEE030X55 is a keyless shaft-hub locking device designed for secure and precise connections. It facilitates high torque transmission and ensures excellent concentricity between a shaft and a hub. The device comprises an inner ring, an outer ring, and a set of tapered screws. Upon tightening the screws, the inner ring expands and the outer ring contracts, creating a robust frictional connection. It is suitable for a 30mm shaft diameter, features an outer diameter of 55mm, and has an overall length of 30mm. This locking device can transmit a maximum torque of 240 Nm and withstand an axial force of 20 kN.