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GCR
The HPU rod seal profile GCR is a symmetric compact seal, that may be mounted without a back-up ring. Due the radial interference, the sealing lip intensively removes any liquid lip. The sealing performance is excellent, even at low pressures or pressureless movement of the rod. On the other hand the highly impact ULTRATHAN material is also able to master high pressures without any difficulties.
ADVANTAGES ARE
- very high wear resistance
- insensitive to shock loads and high pressure
- resistant against gap extrusion
- low compression set
- faultless in pressure-free environment
- qualified for very hard operating conditions
- easy installation
APPLICATION RANGE | |
working pressure: | ≤ 40 Mpa (400 bar) |
operating temperature: | – 35 up to + 110 °C |
surface Speed: | ≤ 0,5 m/s |
medium: | Hydraulic oils (mineral oil-based) Mainly for the sealing of plungers and cylinders corresponding to ISO 6020/II (compact cylinders); also suitable for applications in mobile hydraulics. |
MATERIAL
PU008 is a resistant-to-wearmaterialwith a hardness of approx. 93 Shore A. Its main advantages compared to other polyurethane materials usual in the trade are: High heat stability, good behave against hydrolysis and low compression set values.
MOUNTING INSTRUCTIONS
To ensure a faultless function, the GCR should have an axial clearance (see measure table). To avoid damages at the sealing lip, the seal should not to be pulled over sharp edges. In normal cases the GCR may be installed into closed grooves. Where extremely width of the profile or relations of the diameter are existing assembly tools may be required. Normally the fit should be H8/f7. A larger gap size at the back of the seal is possible when lower pressures are obtaining.
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!