Engineering Tools

O-ring Gland Calculator

Define bore/shaft and cross-section family, select nearby AS568 dash sizes, then analyze nominal checks with machinable tolerance range behavior.

Suggestion results use nearest nominal ID and one size up/down. Review against your approved standards list before release.

Recommended Workflow

  1. Choose units, seal type, service type, and cross-section family.
  2. Enter bore or shaft diameter and run Suggest Standard Sizes.
  3. Select the best AS568 candidate, then review/adjust groove geometry and tolerances.
  4. Run Analyze Gland, review warnings, and export results if needed.
  5. Complete report metadata and generate the report package as the final release step.

Context: values shown are starting-point engineering guidance and should be validated against your release standard, hardware stack-up, and application duty.

1. Setup & Size Family

3. Gland Geometry & Tolerances

Default analysis uses nominal O-ring dimensions and only stacks machined gland tolerances.

Diameter at groove bottom for the selected seal geometry.

Manufacturing half-range on groove diameter.

Axial groove width used for gland fill checks.

Manufacturing half-range on groove width.

Draft/taper angle shown in section preview callouts.

Corner break radius note for static style detailing.

4. Final Step: Report Metadata

Run analysis first, then finalize report fields and generate the release report.