McDowell & Company

MCD Metric O-Rings: Precision Sealing Solutions for Global Standardization

Metric O-Rings are sealing components designed and manufactured to metric dimensions, adhering to international standards. These precision sealing solutions are crucial for maintaining the integrity and efficiency of various systems, particularly in applications requiring compatibility with metric-designed equipment and global standardization.

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Metric O-Rings Material Properties

  1. Dimensional Accuracy
    • Manufactured to precise metric specifications
    • Ensures compatibility with metric-designed equipment
  2. Material Variety
    • Available in a wide range of elastomeric materials (e.g., NBR, EPDM, FKM, Silicone)
    • Material properties depend on the chosen elastomer
  3. International Standardization
    • Conforms to ISO 3601 and DIN 3771 standards
    • Facilitates global interchangeability and sourcing
  4. Size Range
    • Typically available from 1mm to over 1000mm internal diameter
    • Cross-sections ranging from 1mm to 10mm and beyond
  5. Customization
    • Can be custom-made to non-standard metric sizes
    • Allows for precise fitting in unique metric applications

Industries Served by Metric O-Rings

  1. Automotive:  Metric O-Rings are extensively used in European and Asian automotive manufacturing, ensuring compatibility across global supply chains.
  2. Industrial Manufacturing: Many industrial equipment manufacturers, especially in Europe and Asia, rely on metric O-Rings for standardization in their machinery.
  3. Aerospace:  The aerospace industry, particularly in international collaborations, utilizes metric O-Rings to maintain global consistency in aircraft components.
  4. Hydraulics and Pneumatics:  Metric O-Rings are widely used in hydraulic and pneumatic systems designed to metric standards.
  5. Medical Devices:  Many medical device manufacturers, especially those serving global markets, use metric O-Rings to ensure international compatibility.

End Applications for Metric O-Rings

  • European Automotive Systems: Metric O-Rings provide precise sealing in fuel systems, engine components, and transmissions of vehicles designed to metric standards.
  • International Aerospace Projects: In collaborative aerospace projects, metric O-Rings ensure consistent sealing across components manufactured in different countries.
  • Global Industrial Equipment: Metric O-Rings are used in industrial machinery, pumps, and valves designed for international markets.
  • Metric Hydraulic Cylinders: In hydraulic systems built to metric specifications, these O-Rings provide reliable sealing in cylinders and valves.
  • Medical Imaging Equipment: Metric O-Rings offer precise sealing in globally distributed medical imaging devices and diagnostic equipment.
  • International HVAC Systems: In HVAC equipment designed for global markets, metric O-Rings ensure proper sealing and easy maintenance worldwide.

Contact us now for your Metric O-Rings needs.

Frequently Asked Questions (FAQs)

1. How do metric O-Ring sizes differ from AS568 (inch) sizes?

Metric O-Rings are specified by inner diameter and cross-section in millimeters, while AS568 sizes use a dash number system based on inch measurements.

2. Can MCD provide custom metric O-Ring sizes?

Yes, we offer custom metric O-Ring solutions, including non-standard sizes to meet specific application requirements.

3. Are metric O-Rings interchangeable with inch-sized O-Rings?

While some sizes may be close, direct interchangeability is not guaranteed. It’s best to use the size and standard specified in the original design.

4. What industries primarily use metric O-Rings?

Metric O-Rings are widely used in European and Asian manufacturing, as well as in industries with significant international collaboration or global supply chains.

5. How do I specify a metric O-Ring?

Metric O-Rings are typically specified by their inner diameter (ID) and cross-section (CS) in millimeters, e.g., 10 x 2 mm means 10mm ID and 2mm CS.

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