NCCER Millwright Mastery 2026 – Gear Up for Your Mechanical Marvel Journey!

The mechanical squeeze for an O-ring in static applications is typically recommended to be within the range of 20-30 percent of the O-ring's cross-sectional diameter. This level of squeeze ensures an effective seal by allowing the O-ring to deform adequately and fill the gaps between the mating surfaces. It balances the need for a tight seal while preventing excessive compression that could lead to deformation or damage to the O-ring material over time.

An O-ring that is compressed within this optimal range can maintain its flexibility and resilience, allowing it to perform effectively under pressure and temperature variations without compromising its sealing properties. This level of squeeze is also important for preventing leakage and ensuring long-term reliability in various applications.