U Cup Seal Groove Design

An o ring secures them to the rod or piston preventing leaks at low pressure and as the seal wears.

U cup seal groove design.

Lip seal with straight cut scraper lip design 6 10 bpp o ring energized u cup per lip seal with beveled lip design 6 14 sl dual compound dual lip seal 6 24 us symmetrical u cup seal 6 27 series description light load u cup with 6 18 8500 light load u cup with scraper lips 6 18 an6226 symmetrical army navy an specification 6 30 catalog eps. Interference fit in the groove. U cup has an id smaller than the groove for which it is intended. It assures improved sealing performance due to the following features.

Heel of the u cup. Also known as type b seals loaded lip seals and polypaks these u cups are wider than our other o ring loaded u cup seals for better stability and fit in wider grooves. The design is suited for situations where space is limited. Squeeze in this area would result in an extremely high loading of the sealing lips and can result in increased friction heat seal wear and likely premature seal failure.

The seal is most commonly used in pneumatic applications as a rod or piston seal. Developed from the standard symmetrical u cup. The sealing effect of a u cup symmetric seal is obtained thanks to the lip pre compression due to installation and to the pressure effect on the lips. The thin flexible lip design reacts to low pressure and provides an extremely smooth steady movement with less break away force required because of the inherent low friction.

Parker s 8400 profile u cup is a light load symmetrical lip seal for use in either rod or piston sealing applications. Hydraulic sealing solutions for fluid power applications have become a priority in our continued product offering. Fluid power seals sizes readily available in a multitude of materials to provide optimal compatibility with the various hydraulic fluids encountered in service. Homogenous u cups block vees are a non loaded single material u cup.

These seals are suitable for closed groove installation. The seal design and the polyurethane properties give efficient fluid sealing reduced friction values and low wear rate. These u cup seals create less friction than o ring loaded u cups so they wear more slowly also known as lip seals u cups have a sealing lip on both the inside and outside edges so they can be used for rod and piston sealing. U cup is a specialized piston seal design.

P figure 8 u cup.