PTFE Rotary Shaft Seals - Standard Types

PTFE shaft seals are often the perfect choice when the operational parameters cause premature failure of traditional sealing products.

High speed lip seal applications that involve high pressures often rely upon PTFE  shaft seals to deliver long term, reliable and efficient performance. 

Where marginal or oil free conditions exist, dry running rotary seals manufactured from advanced PTFE compounds can often present the only reliable solution.   Several standard ranges of PTFE rotary seals are available from stock to cover peripheral speeds up to 30 m/s and pressures up to 10 Bar.

Rotary Shaft Seal HN 2390

PTFE Rotary Shaft Seal HN 2390

Thanks to its high wear and pressure resistance, this standard design is suitable for a wide range of applications, such as pumps, blowers, and compressors.

Properties

  • Good sealing performance with pressurized media
  • Suitable for dry runs and lubricated applications
  • Also suitable for soft shafts

Operating limits

Max. circumferential speed: 20 m/s
Temperature range: –60°C to +200°C
Max. pressure: 10 bar
Vacuum: to 10–3 mbar
Center offset: ≤ 0.1 mm
Concentricity tolerance: ≤ 0.05 mm

Stock list

Designation example: rotary shaft seal with PTFE lip seal for shaft diameter d1 = 75, locating hole d2 = 100 and width w = 10:
RWDR HN 2390 75 x 100 x 10

d1 mmd2 mmw mmPart no.
10227682.314
12247681.431
15307677.558
17357657.433
18307674.494
20307787.280
20357679.410
22357654.671
25357680.311
25427779.954
25477659.606
28407677.329
28477836.257
30427786.632
30477779.962
32478677.957
35477779.970
35508779.032
35628384.771
40528682.691
40558387.266
40608677.345
40628779.261
40658109.380
42608781.991
42628785.385
45628678.899
48658261.920
50728779.989
55728678.007
60758678.430
60808677.337
62808778.826
65858779.997
709010678.341
7010010783.390
7510010658.502
8010010680.583
8511010677.612
9011010679.771
9012012682.616
10012012778.834
10013012778.176
10513012677.779
11013012783.811
11014012653.837
12015012676.071

Rotary Shaft Seal HN 2390 Friction-optimized (FO) - Low Friction Rotary Seal

PTFE Rotary Shaft Seal friction optimized

Compared with the standard version of type HN 2390, the friction-optimized special type has a significantly lower friction coefficient.

Properties

  • Also suitable for soft shafts
  • Lower generation of frictional heat
  • Suitable for high circumferential speeds
  • Small clearances
  • Long service life

Operating limits

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

Stock list

Designation example: rotary shaft seal with PTFE lip seal for shaft diameter d1 = 70, locating hole d2 = 78 and width w = 6:
RWDR HN 2390 special type friction-optimized (FO) 70 x 78 x 6

d1 mmd2 mmw mmPart no.
8185779.210
10227781.703
12227681.741
20285786.357
20305786.322
22305781.681
22357786.888
25325682.713
30375682.721
30405781.711
30457681.776
35455781.738
37475780.375
40475682.438
40505780.383
45555780.367
50605675.280
50626780.146
55636682.748
55808782.858
60808205.840
65756841.110
65858677.574
70786682.756
8010010922.692
10012010786.152

Rotary Shaft Seal HN 2580

PTFE Rotary Shaft Seal HN 2580

Standard version for pressureless applications and/or pressures slightly above atmospheric. This version features a highly flexible sealing lip and an additional protective lip. Suitable applications include transmissions/gearboxes, machine tools, and pumps.

Properties

  • Also suitable for soft shafts
  • Highly flexible sealing lip
  • Good friction behavior
  • Predefined width of contact surface
  • Suitable for dry runs and lubricated applications

Operating limits

Max. circumferential speed: 30 m/s
Temperature range: –60°C to +200°C
Max. pressure: 0.5 bar
Center offset: ≤ 0.2 mm
Concentricity tolerance: ≤ 0.1 mm

Stock list

Designation example: rotary shaft seal with PTFE lip seal for shaft diameter d1 = 80, locating hole d2 = 100 and width w = 10:
RWDR HN 2580 80 x 100 x 10

d1 mmd2 mmw mmPart no.
10227205.800
12247205.380
15307205.810
18307205.430
20357205.440
25427205.450
30477205.460
35478205.470
35508205.480
40558205.510
40628205.570
45628205.590
48658086.070
50728205.610
55728205.620
60808205.630
65858205.660
709010205.680
8010010205.700
8511010205.750
9011010205.770
10013012205.780
11014012205.790

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ElringKlinger Engineered Plastics
Headquarter Germany Bietigheim-Bissingen
Phone: +49 (0)7142 583-0
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