Radial shaft seals

Rotary seals with PTFE sealing lips are ideally suited for sealing rotating shafts. With outstanding chemical resistance to corrosive media also suitable for use in low-lube and oil-free conditions.

Standard ranges
HN 2390

Operating limits for type HN 2390

Max. peripheral speed:m/s 20
Temperature range:°C –60 to +200
Max. pressure:bar 10
Vacuum:bar to 10-4
Center offset:mm ≤ 0.1
Concentricity tolerancemm ≤ 0.05
 HN 2390 reiopt.

Operating limits for type HN 2390 Friction opti-mized (FO)

Max. peripheral speed:m/s 30
Temperature range:°C –60 to +200
Max. pressure:bar 3
Center offset:mm ≤ 0.1
Concentricity tolerancemm ≤ 0.05
 HN 2580

Operating limits for type HN 2580

Max. peripheral speed:m/s 30
Temperature range:°C –60 to +200
Max. pressure:bar 0.5
Center offset:mm ≤ 0.2
Concentricity tolerancemm ≤ 0.1
To cover a wide range of application requirements, standard ranges have been developed. Type HN 2390 and HN 2390 friction-optimized are used with pressurized media. Type HN 2580 is primarily used for pressureless service and/or with pressures slightly above atmospheric.
Special types
Mit Schutzlippe With protection sealing lip for use in dirty conditions, e.g. construction sites, and underfloor assemblies of screw and rotating compressors. Doppellippe gegensinnig Dual lip, counter-rotating, for separating two media, e.g. for centrifuges and decanters. Picture-1_120 Dual lip, rotating in same direction, with or without hydrodynamic return feed spiral groove, good sealing performance, higher operational reliability, e.g. for pumps, screw-type and rotating compressors.
Gehäuseloser Wellendichtring Shaft sealing ring without housing. Small and special dimensions/geometries available. Dichtlippe negativ Sealing lip, negative. Small clearances, for food processing and medical technology, e.g. for mixers/blenders, meat processing machines and cutters. Hochdruckausführung High-pressure version. Good pressure and temperature resistance, e.g. for machine tools and rotary transmis-sions.