Guangrifang oil cup is made of oil-resistant and corrosion-resistant materials to ensure its durability and safety; the inside of the oil cup is designed with oil-absorbing felt or similar structures, which can effectively absorb and store lubricating oil, and absorb it through contact with the guide rail. Lubricating oil is evenly applied on the surface of the guide rail to reduce friction and wear. Guangrifang oil cup is designed with a structure that is easy to install and disassemble, making it convenient for users to maintain and replace. At the same time, its sealing performance is good, which can prevent lubricating oil from evaporating and external impurities from entering.