DESCRIPTION:

additional to the machined seals Stepseal®2K and rim seal for housings to ISO 7425/2 (rubber energised plastic seals) the u-Cup type ru6 has been developed as an injection molded seal of polyurethane material to fit in the same ISO housings.

The integrated nbr O-ring (only available for series ru62 - ru64) improves the performance at low pressure and low

temperature applications. Polyurethane (Zurcon®Z20) is a proven material for u-cups due to their good mechanical

properties. 

TYPE RU6:

The u-Cup type ru6 can be installed as a single seal for low to medium duty applications; for sealing systems, the u-Cup ru6 shall be installed mainly as a secondary seal together with the Turcon®Stepseal®2K as primary seals.

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METHOD OF OPERATION:

The sealing effect of the u-Cup ru6 comes from the intrusive preload of the seal body and from the compression of the seal lip and the O-ring during installation. in operation conditions, the radial contact forces are superimposed by the system pressure.

Due to the special design and the integrated O-ring the ru6 u-Cups have an excellent sealing behavior with and without pressure activation. The short sealing lip gives better friction values compared to common u-Cups.

OPERATING CONDITIONS: 

Pressure: Max. 25 MPa (as single element)

Speed: up to 0.5 m/s Temperature: use in mineral oils: -35 °C to +110 °C

Media: Mineral oil-based hydraulic fluids.

ADVANTAGES:

• Very good low pressure salability
• Simple installation
• Lower friction compared with common u-Cups
• Installation in ISO 7475/2 grooves
• Very low compression set due to O-ring