U-cup seal U-N1

lippedelastomerNBR

Product overview
One-piece, single-acting U-cup sealing element available in NBR and polyurethane (TPU). U-cup seals are active sealing elements: as system pressure increases, the force on the sealing lips increases, improving contact with the mating surface.

Application and suitability
The U-cup N1 features a symmetrical profile and is suited for both hydraulic and pneumatic systems. TPU versions offer high abrasion resistance and can be used as primary and secondary seals depending on system requirements.

Fields of application

• static
• dynamic
• single acting
• double acting
• linear
• rotating
• oscillating

Main use
hydraulic and pneumatic applications

Materials
elastomers (NBR), polyurethane (TPU)

Characteristics / technical specifications

• Materials available: TPU, NBR
• Maximum working pressure (TPU): up to 40 MPa
• Maximum working pressure (NBR): up to 15 MPa
• Temperature range (material dependent): -30°C to +100°C
• Maximum speed: up to 0.5 m/s
• Standard TPU hardness: 93 Shore A
• Standard NBR hardness: 90 Shore A
• TPU: high abrasion resistance; suitable for primary and secondary sealing
• Seal type: one-piece, single-acting, symmetrical U-cup profile
• Notes: Maximum values for temperature, speed and pressure are not simultaneously applicable and vary depending on material and medium