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Scrapers GHK

The RM scraper ring, or GHT/RM, is a component used in hydraulic and pneumatic applications to protect seals and other internal parts from dirt, dust, and moisture.

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Details

The RM scraper ring, or GHT/RM, is a component used in hydraulic and pneumatic applications to protect seals and other internal parts from dirt, dust, and moisture. It features a single-lip profile and is made with an elastomeric material (such as NBR or FKM) vulcanized onto a shaped metal ring. This metal ring provides strength and structural support, while the elastomeric part ensures good sealing and adaptability to small imperfections on the contact surface.

Main features:

  • Function: Prevents the ingress of external contaminants, protecting seals and other internal parts from damage.
  • Design: Single-lip profile, which provides good adaptability to small shaft imperfections.
  • Material: Made of an elastomeric material (typically NBR or FKM) vulcanized onto a metal ring.
  • Installation: Generally housed in open grooves, which facilitate installation, especially for small diameters.
  • Applications: Widely used in hydraulic and pneumatic systems, particularly to protect pistons and rods from contamination.

Advantages:

  • Effective protection: Prevents the ingress of dirt, dust, water, and other harmful elements.
  • Easy installation: Thanks to the open groove, installation is quick and easy, even for small diameters.
  • Good adaptability: The elastomeric material adapts well to minor surface irregularities.
  • Strength: The metal ring provides strength and long-term durability.

Technical features

Metal Insert Spring Compound Min./Max. Temperature (°C) Speed (m/s) Pressure (MPa)
Fe DC04, AISI 304, AISI 316 NBR -25 / +100 2 -
Fe DC04, AISI 304, AISI 316 FKM (Viton) -20 / +200 2 -
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