1. What is O-Ring Squeeze?

O-Ring Squeeze (S) is a dimensionless parameter that quantifies the compression of an o-ring within a gland, calculated as the ratio of the cross-section reduction to the original cross-section diameter.

2. How Does the Calculator Work?

The calculator uses the O-Ring Squeeze formula:

Where:

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

Explanation: This formula calculates the proportional compression of the o-ring, which is critical for ensuring proper sealing performance.

3. Importance of O-Ring Squeeze Calculation

Details: Proper o-ring squeeze is essential for creating effective seals. Too little squeeze may cause leakage, while too much can lead to excessive wear or failure.

4. Using the Calculator

Tips: Enter cross-section diameter and gland depth in millimeters. Both values must be positive, and gland depth should not exceed cross-section diameter.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal o-ring squeeze percentage?
A: Typically, 15-30% squeeze is recommended for static seals, though this may vary based 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: Can this calculator be used for dynamic seals?
A: While the formula is the same, dynamic applications often require different squeeze ranges and additional considerations for friction and wear.

Q4: What units should be used for measurements?
A: Millimeters are standard for these calculations, though any consistent unit system can be used as long as both measurements are in the same units.

Q5: How does material hardness affect squeeze calculations?
A: Softer materials may require higher squeeze percentages to achieve adequate sealing, while harder materials may perform with less squeeze.