Engineering construction: In the fields of construction and engineering, expansion joint sleeves are commonly used to connect transmission shafts, hydraulic systems, and other components of construction machinery and equipment to achieve various construction functions.

Locking assembly is a keyless coupling device, which works by using high-strength tension bolts to generate a huge clamping force between the inner ring and the shaft, and between the outer ring and the wheel hub, in order to achieve keyless coupling between the components and the shaft. Widely used in heavy machinery, wind power generation, packaging machinery, printing machinery, CNC machine tools, automation equipment and other fields.