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The U-Cup seal is one of several seals required to seal a cylinder rod on a hydraulic cylinder.
The U-Cup seal is designed to replace Chevron Packing. These assemblies combine U-Cup Rod Seals with spacers to fill the original Chevron Packing grooves. Both U-Cup Seal Assemblies and Chevron Packing meet the same functional sealing specifications. Seal effectiveness is increased as internal pressure increases against the inner surface of the lips.
The U-Cup Seal is used on all hydraulic cylinder seals.