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Dynamic Seals U-cup N8

The U-cup N8 is a two-piece, single-acting sealing element and is available in polyurethane (TPU) with a integrated POM Back-up ring. U-cup seals are active sealing elements and as the system pressure increases, the force on the sealing lips also increases.

The U-cup N8 are used primary for hydraulic applications and has a particularly robust profil. The second sealing lip counters the stick-slip tendency. The integrated Back-up ring on the back of the seal prevents gap extrusion also at higher pressures. TPU makes these seals suitable as primary and secondary seals, due to the excellent abrasion resistance.

The standard TPU compound has a hardness of 93 Shore A. Compounds in a different hardness and/or color are available upon request.

U-cup N8

U-cup N8
Fields of application
static
dynamic
single acting
double acting
Linear
Rotating
oszilating
Main use predominantly for hydraulic applications at high pressure
Materials polyurethane, POM

Technical values

Materials TPU
Pressure up to 50 MPa
Temperature -30°C / +100°C (material dependent)
Speed up to 0,5 m/s
Maximum values temperature, speed and pressure are simultaneously not applicable! The values vary in dependence of material and media. For technical queries please contact our application consultants – we have the right solution for you. 
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More U-cups

Further to U-cup N7
Further to U-cup N7
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Mr. Thomas Stegmaier
Your contact person

Engineering - General sealing topics, special constructions

Mr. Thomas Stegmaier
Do you have any questions, ideas, or suggestions? We are more than happy to provide you with advice and assistance. In person, over the phone, or digitally
 Mr. Thomas Stegmaier
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