Traditional shaft-hub connections are unsatisfactory in many applications, mainly where frequent start-stop rotations are involved. Over time, keyway engagement becomes less accurate due to mechanical wear.
The locking assembly produced by REACH bridges the gap between the shaft and the hub and distributes the power transmission over the entire surface, while with the key connection, the transmission is only concentrated in a limited area.
Keyless locking devices, also known as locking assemblies or keyless bushings, achieves non-keyed connection between a machine part and a shaft by generating a huge clamping force between the inner ring and the shaft, and between the outer ring and the hub through the action of high-strength tensile bolts. The resulting zero backlash mechanical interference fit is suitable for high torque, thrust, bending, and/or radial loads, and unlike other installation techniques, it does not wear or impact even under high cyclic fluctuations or reverse loads.

Features
Easy assembly and disassembly
Overload protection
Easy adjustment
Precision location
High axial and angular positioning accuracy
Ideal for applications involving acceleration and deceleration
Zero backlash

Parameter Name	Parameter Value
Type	locking device
Product applications	transmission for shafts
Other characteristics	zero-backlash for high torque keyless
Torque (Nm)	77 - 77 0 - 0