Shaft Seals (Oil Seals)

Shaft Seals (Oil Seals)
Radial Shaft Seal Details

Elring radial lip seals with PTFE-sealing lips are ready-to-install sealing elements achieving their sealing effect through radial pressure acting on the shaft. Sealing action in the installation groove is achieved by press-fit according to DIN 3760. Elring radial lip seals with PTFE-sealing lips are primarily used for sealing rotary shafts. The basic design of the seal comprises an inner and outer angular ring, an elastomer secondary seal, the PTFE-sealing lip and the protective lip (for type HN 2580). The necessary radial contact pressure
is achieved through proper selection of PTFE-compounds, sealing lip design as well as special manufacturing technology.

The outer angular ring and the sealing lip are connected by an axially pre-loaded elastomer sealing disc or a temperature- and chemically resistant solid connection for special application requirements.

To cover a maximum range of applications, standard series have been developed. Type HN 2580 is primarily used for non-pressurized service and/or low excessive pressures, while type HN 2390 is primarily used with pressurized media.

Benefits

outstanding chemical resistance against aggressive media,

suitable for high temperature ranges from –60 to +200°C,

suitable also for use under low-lube or dry operating conditions,

suitable also for use with non-hardened shafts,

high wear-resistance of the sealing lip compound,

special types with low loss rates for friction-optimized designs,

suitable for high circumference speeds

low break-away forces after extended down times,

anti-adhesive behavior of the sealing lip,

special types suitable for use in the food and pharmaceutical industries.

Innovations in plastics – for over 40 years we have been one of the technology leaders for seals and engineering design elements. For our customers around the world we develop and produce solutions that stand the test of practical application: from PTFE and PTFE-compounds, thermoset and other high-performance plastics as well as PTFE-composite components including plastics or metals. As single, custom solutions, up to dimensions of 3,000 mm, or from an extensive portfolio of standard series. Our products can be found in virtually any industry as well as in medical technology. Our merger with Venus and the integration of the Venus product portfolio now puts us in a position to offer you PTFE processing capabilities that rank among the most extensive in the world. Benefit from our expanded capacities to deliver complete solutions from the semi-finished product through to the functional solution custom-tailored to your needs. Your previous points of contact are ready to serve you with additional options and greater flexibility. Together, we’ll make the best of plastics for you. PTFE plays a key role in this – a compound with unique properties for engineering applications, even under extreme conditions.