Hardware Recommendations - Static O-Ring Gland Design
The O-Ring gland (also known as O-Ring groove) is a very important design feature for manufacturing both efficient and cost-effective O-Rings.
The most important consideration for gland design is that it allows for proper and complete compression between the groove and the mating surface. While the shape of the O-Ring relies and depends on the application, shape is generally unimportant. The groove can be a variety of shapes; anything from triangular, rectangular, or dovetail.
One general guideline for good O-Ring application and design is to maintain the ideal range of squeeze percentage. This can vary for static O-Rings, anywhere from ~10% - 35%.