Locking Assembly (The expansion sleeve ) is a keyless connection device, whose principle and purpose are to generate a huge clamping force between the inner ring and the shaft, as well as between the outer ring and the wheel hub, through the action of high-strength tensile bolts, in order to achieve keyless connection between the machine parts and the shaft. When subjected to load, torque, axial force, or a combination of the two are transmitted through the combined pressure of the expansion sleeve with the machine parts and shaft, as well as the frictional force generated. Locking Assembly (Expansion sleeves) are widely used in heavy machinery, wind power generation, packaging machinery, printing machinery, CNC machine tools, automation equipment and other fields. Advantages of Locking Assembly: 1. Use Locking Assembly to make the manufacturing and installation of host parts simple. 2. The Locking Assembly has a long service life and high strength. 3. When overloaded, the Locking Ass…