Technical Seals – O-Rings According to PN-90/M-73060 Standard

O-Rings According to ISO – Technical Seals with Circular Cross-Section

The PN-90/M-73060 standard specifies technical seals with a circular cross-section – O-rings according to ISO dimensions and markings (type "OI" rings). These seals are designed for both dynamic and static sealing applications in hydraulic and pneumatic systems.

What Is an O-Ring Seal?

An O-ring is a torus-shaped seal with a circular cross-section. Various elastomers are used in manufacturing O-rings, such as NBR, EPDM, VMQ, FPM, and HNBR. These rubber sealing rings offer excellent flexibility and elasticity, making them ideal for agricultural and construction machinery, industrial transmissions, and engines. They can be used in both moving and stationary applications, particularly in hydraulic and pneumatic drives and controls.

A properly selected ISO-compliant circular seal effectively prevents fluid leaks and protects machinery components from contamination (dirt, moisture, metal particles). Power Rubber offers high-quality O-rings that meet the PN-90/M-73060 standard.

PN-90/M-73060 Standard for O-Ring Seals

O-ring seals manufactured according to the PN-90/M-73060 standard are used in clamped sealing applications in hydraulic and pneumatic systems. The hardness of the seals varies depending on the sealing pressure and the width of the sealing gap.

Example of O-ring designation:

20x2 FKM 70 S PN-90/M-73060

• Inner diameter D = 20 mm

• Cross-section diameter d = 2 mm

• Material type: FKM

• Hardness Shore A: 70

• Execution class: S (special application)

• Standard: PN-90/M-73060

Looking for O-rings compliant with PN-90/M-73060? Contact Power Rubber for expert suppor