The existence of mechanical product accessories has a significant impact on the performance, reliability, and user experience of mechanical products. They not only enable mechanical products to fulfill their designed functions, but also improve their performance level. Suitable accessories can improve transmission efficiency, transmission accuracy, and stability, while enhancing the durability and safety performance of mechanical products. By selecting high-quality accessories, maintenance and replacement costs can be reduced, and the service life of mechanical products can be extended. Good accessory design can also simplify maintenance processes, improve usability, and make mechanical products more suitable for specific work environments and task requirements, thereby enhancing the flexibility and applicability of mechanical products.