The RWR 4 x 4.25 x 1 9400 Rod Wear Ring by Freudenberg-NOK is engineered for high-performance hydraulic rod applications. With outer dimensions of 4 inches and an inner diameter of 4.25 inches, along with a thickness of 1 inch, this wear ring ensures a precise fit and minimizes friction. Constructed from high-quality materials, it offers excellent wear resistance, enhancing the longevity of your hydraulic systems. This wear ring complies with industry standards, making it a reliable choice for maintaining the efficiency and performance of your machinery.