Design
8 articles in design
O-Ring Groove Design: Dimensions & Compression
Complete engineering guide to O-ring groove design. Static and dynamic groove dimensions, surface finish requirements and worked examples.
Backup Rings vs O-Rings: Anti-Extrusion Support
Understand the difference between O-rings and backup rings, how to determine when extrusion risk justifies adding support, and how to select the right backup ring material and profile for your application.
X-Rings vs O-Rings: Friction, Wear & When to Switch
Compare X-rings (quad rings) and standard O-rings in reciprocating service. Specific data on friction reduction, lubrication retention, groove compatibility, and when the cost premium is justified by longer service life.
O-Ring vs Gasket vs Seal: What is the Difference?
Engineering guide comparing O-rings, gaskets, and seals. Covers definitions, geometries, sealing mechanics, pressure limits, material options, cost trade-offs, and application-specific decision criteria.
O-Ring Compression Rate: Design & Performance
How to calculate and specify O-ring compression rate. Static seal 15–25%, dynamic 10–20%. Groove design formulas and worked examples.
High-Pressure O-Ring Design: Backup Rings, Extrusion Prevention & Groove Sizing
Engineering guide to high-pressure O-ring design. Prevent extrusion, select hardness and material, and size grooves for pressures up to 1,000 bar.
O-Ring Tolerance Guide: ISO 3601-1 & AS568 Classes
Engineering guide to O-ring tolerances. ISO 3601-1 N/S/CS grades, AS568 Class 1 and 2, tolerance stack analysis for groove design.
O-Ring Hardness Guide: Shore A 70 vs 90 & Selection
Engineering guide to O-ring hardness selection. Shore A durometer, sealing force, compression set, and how to choose hardness for static and dynamic seals.