1. Strong bearing capacity: able to bear large vertical and horizontal loads to ensure the safety of the bridge. 2. Low friction coefficient: the friction coefficient of the unidirectional sliding surface is small, which enables the bearing to slide smoothly in the allowed direction, reducing energy loss and adverse effects on the bridge structure. 3. Good durability: made of high-quality materials such as rubber and steel, with good corrosion resistance and aging resistance and long service life. 4. Convenient installation: the structural design is reasonable, which is convenient for on-site installation and debugging.