356-4147: 145.91mm Outer Diameter U-cup Seal

The Hydraulic Hammer U-Cup Seal is to prevent hydraulic fluid from escaping between the piston and cylinder walls. As the piston moves back and forth rapidly within the cylinder due to hydraulic pressure, the U-Cup Seal provides a tight seal, maintaining hydraulic efficiency and preventing contamination of the hydraulic fluid. Attributes: • Low friction for efficient piston movement • High-pressure sealing capability • Groove Diameter: 145.04mm • Groove Width: 16.125mm • Fits rod diameter of 125mm Applications: The Hydraulic Hammer U-Cup Seal is used to ensure a secure seal within the hydraulic hammer, preventing hydraulic fluid leaks that could compromise its functionality and performance.