U Cup Seal

A u cup is an o ring formed into a u shaped channel.

U cup seal.

When compressed between mating surfaces an o ring blocks the passage of liquids or gases. Rubber cup seals also called u cup and lip seals from marco rubber are used for hydraulic pneumatic and other dynamic applications. U cups are a lip seal named for the cross section s distinctive u shape. Contents introduction 1 seal selection 2 profiles 3 part numbering 4 specifying a seal 5.

The u shape energizes the sealing lips as the application pressure increases. 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. This brochure will take you through a variety of u cup related sealing products and materials while giving you some basic guidelines of sealing principles and theories to help you design for your unique needs. Loaded u cups non loaded u cups hydraulic or pneumatic u cups mfp.

Hsu 626 straight lip u cups. 6226 epdm u cup seals. Dual rod and piston seals sometimes called u ring u seals or unloaded u cups are universal seals used in hydraulic applications. Enable the u cup to have a longer life expectancy.

Order o rings online quick and easy since 2007 from the o ring store llc. Liquid or air pressure inflates the u cup and affects a seal. They are used in static and dynamic applications to seal the rod and piston. An o ring is a solid rubber seal shaped like a dough nut or torus.

Mfp offers a wide range of u cup designs and produces them from a broad range of materials. This brilliant design has been modified to create several unique configurations. The u cup is ideal for use on linear moving shafts and piston heads because unlike an o ring the shape does not try to roll with the movement and create friction. U cup seals or u ring seals are commonly used in linear applications to seal the rod or piston.

Speak with a product expert. Hru 666 block vee u cups.