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E8R
The two-piece pneumatics seal wiper set E8R combines two functions in one profile: Sealing and wiping of piston rods in pneumatic cylinders. Additional, the seal set will be fixed by the special outline at the outside diameter of the wiping / holding part.
ADVANTAGES ARE
- no corrosion at the wiper element EAR, because no round-wire snap ring is necessary due to the design of the outside diameter
- by the special design in the area of the wiper, dust corners will be avoided
- low friction and a long service life by the specific lip geometry, also on the strength of the use of a special plastic at the wiping resp. holding ring
- in case of single-acting cylinders, only the wiping / holding ring can be used without alteration of the fitting area
- also usable for dry and oil.free air after a initial lubrication
- exchange of the seal set with mounted piston rod is possible
APPLICATION RANGE | |
working pressure: | ≤ 1,6 MPa (16 bar) |
working temperature: | - 20 °C to + 80 °C above + 80 °C see profile E9R (FKM) |
surface speed: | ≤ 1 m/s |
media: | Lubricated air as well as dry air and oil-free air (after initial lubrication) |
MATERIAL
The seal element EBR of the seal/wiper set profile E8R is made of a special NBR-based SFR? elastomer with a hardness of approx. 80 Shore A. This compound has especially well running properties in the semi-frictional area. The wiping / holding ring EAR is made of a highly wear resistant plastic material.
MOUNTING INSTRUCTIONS
The pneumatics seal wiper set profile E8R will be snapped into a bored groove. The wiper / holding part will be held on by the necessary groove for round-wire snap rings according to DIN 7993 (type B). Beforehand, the seal element EBR is pushed into the bore. To avoid damage to the wiper and sealing lip, those should not be drawn over sharp edges during installation. In case the seal / wiper set needs to be exchanged with mounted piston rod, this can be accomplished if a dismantling recess has been provided for (see profile E9R detail X).
For special cases of application (high temperatures, speed, specific pressure, use in water, HFA-, HFB-fluids etc.) please get in contact with our consultancy service.
Do you need support in selecting the right seal or do you have any questions? We will be happy to help you directly!