What are X-Rings?

X-Rings (also known as four-lip seals or Quad-Rings) are a rubber seal with a special cross-section. Its cross-section is "X" shaped, which is different from the circular cross-section of the traditional "O-ring". It is an upgraded version of the O-ring, with better sealing performance and stability, and is widely used in various hydraulic and pneumatic systems.

Advantages of X-type structure

Double sealing lip: Two more contact surfaces than O-ring, stronger sealing effect

Reduce friction and wear: Lip design reduces starting resistance, suitable for dynamic sealing

Prevent rolling and twisting: Good cross-section stability to avoid seal failure due to assembly or movement

Longer service life: More resistant to high-frequency reciprocating motion, not easy to aging and damage

Optional materials

X-Rings can be made of a variety of rubber materials, such as:

NBR (nitrile rubber): General oil-resistant and wear-resistant use

FKM (fluororubber): Suitable for high temperature and high corrosion environment

EPDM / Silicone: Suitable for water, steam or food-grade applications

✅ Why choose X-Rings?

Project O-ring X-ring (X-Ring)

Sealing performance Standard Better (multi-lip seal)

Dynamic friction Larger Smaller, more stable

Twisting risk Higher Low, more stable assembly

Service life Normal Longer, more durable

Conclusion:

X-Rings are a higher performance sealing option, especially suitable for working conditions requiring high sealing, low friction and long life. Jinwoseal provides X-ring products of various specifications and materials, supports customization and technical support, and helps customers improve the sealing performance of equipment.