Common materials
In the standard construction, our Oil Seals are made from oil and grease resistant rubber based on NBR (Perbunan).
This material has very good running properties and excellent wear resistance. For high shaft speeds, large radial tolerances and good chemical resistance a range of other rubber materials is available.
| Rubber Type | Material Code ISO 1629 | Heat resistance |
|---|---|---|
|
NBR | -35°C / + 100°C |
|
Polyacrylate
|
ACM | -20°C / + 180°C |
|
FPM | -30°C / + 180°C |
Silicone
|
MVQ | -50°C / + 150°C |
|
PTFE | -80°C / + 200°C |
|
-20°C / + 90°C |
| Elastomer | Min. temp. | Motor Oil |
Gearbox oil |
A.T.F.- oil |
Hypoid oil | Grease | Fuel | Water | Logen | Brake fluids |
|---|---|---|---|---|---|---|---|---|---|---|
| NBR | -35 | +100 | +80 | +100 | +80 | +90 | +90 | +70 | +70 | - |
| ACM | -20 | +130 | +120 | +130 | +120 | * | * | - | - | - |
| MVQ | -50 | +150 | +130 | * | * | * | * | - | - | - |
| PFM | -30 | +180 | +150 | +170 | +150 | * | * | +100 | +100 | * |
- = For these media the elastomer is not resistant
* = Within these groups, there are media which can be sealed by the elastomer in question, although these media could have a disadvantageous influence on the elastomer.