Sealing Excellence, Securing Industry

CFKS X-rings Nbr Fkm X Ring Quad Sealing Lock Quad Ring for Hydraulic and Pneumatic Systems

These X-Rings (also known as Quad Rings) are high-performance sealing solutions designed for use in hydraulic and pneumatic systems. Made from premium NBR (Nitrile Rubber) or FKM (Viton), they provide superior sealing, reduced friction, and enhanced stability compared to traditional O-rings. Ideal for dynamic and static applications, X-Rings ensure longer service life and reliable sealing in high-pressure environments.

Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type X-Ring   Packing 1 pc per bag

 

1. What Is an X-Ring? Superior Quad Ring Sealing Design
X-Rings, also called Quad Rings, feature a unique four-lobed profile that provides a more stable seal than standard O-rings. This design reduces the risk of rolling, twisting, or leakage under pressure. Perfect for use in hydraulic cylinders, pneumatic actuators, and sealing grooves, the X-Ring delivers excellent sealing performance for both dynamic (reciprocating or rotary) and static applications. Their versatile design makes them ideal for replacing conventional O-rings in demanding environments.

 

2. Premium Material Options: NBR and FKM for Optimal Compatibility
These quad seals are available in NBR (Nitrile Rubber) for general industrial use and FKM (Fluorocarbon/Viton) for high-temperature and chemical-resistant applications.

NBR X-Rings offer great resistance to oil, fuel, and abrasion, making them ideal for general-purpose hydraulic equipment.

FKM X-Rings are best suited for harsh chemical exposure, elevated temperatures, and long-term durability in hydraulic and pneumatic systems.

Both types of materials provide excellent elasticity and sealing capability under high pressure.

3. Enhanced Performance for Hydraulic and Pneumatic Applications
Unlike traditional round O-rings, X-Rings provide multiple sealing surfaces, which improve efficiency and minimize wear over time. The quad-lobe design also reduces friction and extends service life, making these seals ideal for pumps, valves, air cylinders, compressors, and other high-speed equipment. They are an excellent choice for minimizing leakage and improving system reliability, even in harsh industrial conditions.

 

 

 

Frequently Asked Questions (FAQ)

Why does my CFKS oil seal fail prematurely? Common causes and prevention tips2025-06-26T15:44:39+08:00

Premature oil seal failure can result from improper installation, poor shaft finish, incorrect material selection, or excessive pressure. To prevent this, ensure the shaft surface is smooth and within tolerance, use correct tools during installation, and choose seals made from materials compatible with your media and temperature.

How to correctly install a CFKS industrial oil seal to avoid leakage2025-06-26T16:04:32+08:00

Always clean the shaft and bore before installation. Use appropriate seal drivers to avoid deformation. Lubricate the lip before fitting to reduce friction during the first rotation. Ensure the seal is seated evenly and not tilted to avoid leaks.

What to do when your CFKS hydraulic seal is leaking under pressure2025-05-20T16:33:14+08:00

Check if the pressure exceeds the seal’s rated limit. Examine for wear, hardening, or improper installation. Replace the seal if damaged, and consider upgrading to a high-pressure CFKS seal variant. Also, verify that the housing and shaft are properly aligned.

How to choose the right CFKS oil seal for extreme operating environments2025-05-20T16:34:39+08:00

For high temperatures, aggressive chemicals, or abrasive environments, choose CFKS seals made of FKM, PTFE, or high-performance elastomers. Consider using seals with protective dust lips or metal casing. Our team can recommend the best fit for your application.

 

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