1. What is O-Ring Squeeze Calculation?

The O-Ring Squeeze calculation determines the compression ratio of an o-ring in its gland, which is crucial for ensuring proper sealing performance and preventing leakage in various industrial applications.

2. How Does the Calculator Work?

The calculator uses the O-Ring Squeeze equation:

Where:

• \( S \) — O-Ring Squeeze (unitless)
• \( CS \) — Cross-section diameter (mm)
• \( GD \) — Gland depth (mm)

Explanation: This equation calculates the compression ratio by comparing the difference between the o-ring's cross-section and the gland depth relative to the original cross-section size.

3. Importance of O-Ring Squeeze

Details: Proper o-ring squeeze is essential for creating effective seals. Too little squeeze may cause leakage, while excessive squeeze can lead to premature failure, extrusion, or high friction.

4. Using the Calculator

Tips: Enter cross-section diameter and gland depth in millimeters. Both values must be positive numbers, with gland depth typically less than cross-section diameter.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal o-ring squeeze percentage?
A: Typically 10-30% for static seals and 8-16% for dynamic seals, depending on material and application.

Q2: How does temperature affect o-ring squeeze?
A: Temperature changes can affect material properties and thermal expansion, which may alter the effective squeeze in operation.

Q3: What units should I use for measurements?
A: Millimeters are standard for o-ring dimensions in most industrial applications.

Q4: Can this calculator be used for all o-ring materials?
A: While the calculation is universal, different materials have different compression set characteristics that should be considered.

Q5: What if my calculated squeeze is outside recommended ranges?
A: You may need to adjust gland dimensions or select a different o-ring size to achieve optimal sealing performance.