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U-Cups Loaded - PolyPaks ®

High Performance Loaded U-Cup Seal 

The O-Ring loaded U-cup is a single direction piston seal, meaning it can only seal if the pressure is coming from one direction. Since the sealing method is single directional, two loaded U-cups must be installed for dual direction hydraulic piston applications.

The lip designed is a straight lip design, so the loaded U-cup has good seal ability but also proves to be excellent at contamination removal away from the sealing lip. Overall, the shape of the loaded U-cup is a large rectangle that greatly adds to the stability of the seal. Also like most polyurethane seals, the loaded U-cup features an O-Ring energizer, which is designed to activate the seal at lower pressures.

AS568 O-RING INCH SIZES

AS568 is the Aerospace Size Standard for O-rings from the Society of Automotive Engineers. The O-Ring Store LLC manufactures and supplies the complete range of standard AS568 sizes in a wide range of elastomeric O-ring materials. Link to the Compounds and O-Ring sizes, grouped by cross-section and listed numerically by inside diameter. AS568 O-Rings To make it easy you can search for all compounds by size, just use "AS568-010" in the search box.

METRIC O-RINGS - STANDARD, EUROPEAN, AND JAPANESE SIZES

The O-Ring Store LLC manufactures and supplies a complete range of Metric O-Rings in ISO3601 International Organization for Standardization, British Standard BS1806 O-ring sizes (imperial) -replaced by ISO3601 standard, British Standard BS4518 Metric O-ring Sizes and Japanese Standard JIS B 2401 (P, G and V) O-ring sizes. Link to the Compounds and O-Ring sizes, grouped by cross-section and listed numerically by inside diameter. Metric O-Rings To make it easy you can search for all compounds by size, just use the cross section X inside diameter x "2.00X024" in the search box.

We are a family owned and operated Distributor and Manufacturer of O-Rings, O-Ring Kits, OSK™ O-Ring Service Kits, Hydraulic Seals, Adhesives, Lubricants, Braided Packings, Coatings, O-Ring Cord, Lathe Cut, Oil and Shaft Seals, Gaskets, Retaining Rings, Molded Packings, Seals, and Molded Rubber Products.

We serve many industries, including manufacturing, chemical processing, defense, power generation, agricultural, water treatment and filtration, hydraulics, fluid power, heavy truck, automotive, aerospace, oil and gas, medical and life sciences, food and beverage, electronics and industrial controls, refineries, and supply chain suppliers. Each industry and each customer have unique requirements that make them special. We love sharing customer stories and applications at our weekly store meeting.