Square Cut O-Rings

Request A Quote

Square Cut O-Rings are exactly like normal O-Rings, except that their cross-sections are square instead of circular. This design increases their working pressure, and form fit more snugly in some spaces.

Square Cut O-Rings have been largely phased out by elastomeric sealing manufacturers since the invention of the Quad Ring, or commonly also called a Q Ring or X-Ring.  Square O-Rings are still available from some manufcturers, but they typically require tooling charges and/or large quantity orders to produce them.

The Quad Ring has replaced the Square Cut in most cases.  The four-lobed design not only provides lower friction than the Square Cut O-Ring, but also, due to its square cross section, it resists spiral twist.  When the Quad Ring is squeezed upon installation, they seal with the 4 small contact surfaces on the top and bottom.  This also creates a lubricant reservoir formed between the sealing lips that improves performance when startup pressures are exerted.

If your application uses a Square Cut O-Ring, consider switching to the Quad Ring.  The Quad Ring offers many advantages over the Square Cut.  The AS568A sizing is completely interchangeable with O-Rings, Quad Rings and Square Cut O-Rings.

Ask Us A Question

 

If you have any questions, please fill out the form below and a Rocket Seals technical expert will get in touch with you shortly.

Yes, sign me up.

Need O-Rings Fast?

 

Rocket Seals is the leading distributor for O-Rings.

Request your quote and have it ship the same day.

Request A Quote