A U-Cup Seal, also known as a U-ring seal, is used to provide a positive seal between the piston and cylinder, to prevent fluid leakage. It helps to effectively prevent the leakage of hydraulic fluid from the high-pressure side to the low-pressure side of the cylinder, ensuring proper functioning and performance.Attributes:• Reduce the vibration caused between the parts• Suitable to fit with the shaft of diameter 57.1mmApplications:A U-Cup Seal is used to create a tight sealing for the piston and cylinder in a Hydraulic Unit.