The Freudenberg-NOK AS568-387 SIMRIZ SZ134 is a durable sealing solution designed for industrial use. With an inner diameter of 18 inches and an outer diameter of 18-3/8 inches, this seal has a thickness of 3/16 inches, ensuring a tight fit. Made from high-quality materials, the SIMRIZ SZ134 is engineered to perform in various environmental conditions, making it suitable for hydraulic and pneumatic applications. This product adheres to industry standards, ensuring compatibility with existing systems. The SIMRIZ SZ134 offers excellent wear resistance, providing a long-lasting sealing solution.