The bushing is made of high-quality 6061-T6 aluminum alloy and has undergone T6 heat treatment. It has high strength, light weight, excellent corrosion resistance and wear resistance, ensuring long-lasting durability and no rust or deformation. Made using high-precision CNC turning and milling composite technology, the knurling is uniform and precise, tight and non-slip. Strict tolerance control ensures superior positioning accuracy and structural stability. It is suitable for fitness equipment, massage guns and industrial automation equipment. It is a key component for shaft positioning, connection fixation and limit buffering. Easy to install and can be connected via press-fit or threaded docking. Non-standard sizes can be customized to meet diverse industrial connection needs.