Cross-section | Profile designation | Application | Operating pressure < MPa | Temperature °C (depending on material) | Glide speed < m/s | Design information | Product details |
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| ZGR | Hydraulics | 35 | -20 to 100 | 0,5 | | |
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Show general overview | Load overview |
General
Profile ZGR is a double-acting rod seal and is mainly used in cylinders and spindles. The ZGR profile has a central elastomer body with a special fabric vulcanised into the running surface. This fabric reinforcement ensures that the lubricant film under the seal is maintained even after a long period of use under high pressure. This significantly reduces the breakaway torque during start-up as well as wear. To prevent gap extrusion, the profile is additionally reinforced on both sides of the inner diameter with polyacetate-based support rings. This profile can also be used in water hydraulics. Set code SN250 = support ring slotted, set code SN254 = endless support ring
Medium
Can be used in mineral oil, HFA, HFC and HFB fluids as well as water
Material
Standard materials:
- Seal ring: NBR compound
- Tread: special NBR fabric
- Backing rings: POM (polyacetate)
Advantages
- very robust design
- insensitive to pressure peaks
- wide media compatibility for its field of application
Installation instructions
To prevent damage to the seal, it must not be pulled over sharp edges. The seal set can be installed in closed grooves by means of a snap-in assembly. For special applications (high temperature, speed, specific pressure load or use in HFA, HFC and HFB fluids etc.) please contact our application engineering department.
Other
When used in HFA, HFC and HFB fluids, please note the temperature application limits of -5°C and +60°C.