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ROTARY SEALS | STANDARD SHAFT SEALS |

SA2

Temperature / Media

Media

Maximum temperature depending on the materials

ACM

AEM

EPDM

FKM

HNBR

NBR

VMQ

Mineral oils

Oils for motors

+130°C

+130°C

–

+170°C

+130°C

+100°C

+150°C

Oils for gearboxes

+120°C

+130°C

–

+150°C

+110°C

+80°C

+130°C

Oils for hypoid gears

+120°C

+130°C

–

+150°C

+110°C

+80°C

–

ATF oils

+120°C

+130°C

–

+170°C

+130°C

+100°C

–

Hydraulic oils

+120°C

+130°C

–

+150°C

+130°C

+90°C

–

Greases

–

+130°C

–

–

+100°C

+90°C

–

Fire-resistant

fluids

HFA group - Emulsion with

more than 80% water

–

–

–

–

+70°C

+70°C

+60°C

HFB group - Opposite

solution (water in oil)

–

–

–

–

+70°C

+70°C

+60°C

HFC group - Polymer

aqueous solution

–

–

+60°C

–

+70°C

+70°C

–

HFD group - Water-free

synthetic fluids

–

–

–

+150°C

–

–

–

Other fluids

EL + L heating oil

–

–

–

–

+100°C

+90°C

–

Air

+150°C

+150°C

+150°C

+200°C

+130°C

+100°C

+200°C

Water

–

–

+150°C

+100°C

+100°C

+90°C

–

Water for washing

–

–

+130°C

+100°C

+100°C

+90°C

–

Temperature range

Min.

-25°C

-40°C

-45°C

-20°C

-30°C

-30°C

-60°C

Max.

+150°C

+150°C

+150°C

+200°C

+150°C

+100°C

+200°C

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TECHNICAL DATA

Speed

0

0

20

40

60

80 100 120 140 160 180 200

5

10

15

20

25

30

35

40

500

1000

1500

2000

2500

3000

3500

4500 4000

5000

6000

7000

9000

15000

30000

8000

10000

Shaft diameter (mm)

FKM / VMQ

ACM / AEM / HNBR

NBR

PTFE

The shaft seals with an additional protective

lip are limited to a speed of 8 m/sec.

Linear speed calculation:

s (m/s) =

[shaft Ø (mm)  x  speed (rpm)  x   π]

 

60,000

Pressure

The standard shaft seals are generally used

in unpressurised environments, or for pressures

between 0.02 and 0.05 MPa maximum.

Higher pressures are acceptable, following testing, for standard

NBR or FKM shaft seals used on a shaft diameter less than 30

mm.

0

0,05

0,1

0,15

0,2

10

20

30

Shaft diameter (mm)

1 m/s

1,5 m/s

2 m/s

2,5 m/s