X-Ring / Quad Ring

X-Ring, also known as Quad Ring, is a four lipped seal with a specially developed sealing profile. The four lipped design provides two sealing surfaces in comparison to a standard O-ring.

As a X-ring manufacturer and supplier, we can supplier X-rings in NBR, FKM, EPDM, SILICONE, etc. Please contact us for more details.


X-Ring can be used in the same groove dimensions as O-Ring but because of the reduced friction resistance can result in longer service life in certain applications.

X-Ring is used predominantly for dynamic sealing functions. The use is always limited by the pressure to be sealed and the velocity.

Typical applications for X-Rings include:

  • Dynamic Seal – Reciprocating pistons, rods, plungers

  • Dynamic Seal – Oscillating, rotating or spiral movements on shafts, spindles, rotary transmission leadthroughs

  • Radial-static seal – Bushings, covers, pipes

  • Axial-static seal – Flanges, plates, caps

Why consider  X-Rings

X-Rings work good in the applications where O-Rings twist

X-Rings provide lower friction than O-Rings and Square Rings

X-Rings are interchangeable with O-Ring sizes and glands design

X-Rings are available in USA AS568 standard sized NBR Buna-N and FKM.