Sealing Excellence, Securing Industry

CFKS V-Ring Water Seal NBR Rubber V-Seal VA Rotary Shaft Seal VA Seals Piston Rod V Type seal

CFKS Guide Rings and Wear Rings are essential components for hydraulic cylinders, preventing metal-to-metal contact while guiding piston and rod movement. Available in fabric-resin composite and PTFE materials, they offer superior wear resistance and low friction for high-performance hydraulic systems.

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

 

1. Product Overview & Applications
The CFKS V-Ring Seal (VA type) is an elastic axial shaft seal that sits directly on the shaft and rotates with it. Its main function is to protect against external contaminants such as water, dirt, and dust while also preventing lubricant leakage. It is widely applied in water pumps, electric motors, gearboxes, compressors, hydraulic cylinders, and piston rods, ensuring long-term equipment reliability.

 

2. Material & Performance Advantages
Manufactured from premium NBR rubber, the CFKS VA V-Seal offers excellent resistance to oil, wear, and low temperatures. It is especially suited for dynamic sealing in rotary applications, where flexibility and durability are critical. For demanding working conditions, FKM VA Seals can also be offered, providing outstanding high-temperature and chemical resistance.

3. Features & Benefits

Axial sealing design ensures tight and reliable protection against dust, water, and oil.

Simple installation — mounted directly on the shaft without additional housing.

Low friction & energy efficiency, reducing heat generation and shaft wear.

Versatile applications in piston rod seals, rotary shafts, pumps, compressors, and industrial machinery.

Available in a wide range of sizes and materials (NBR, FKM) to meet various industrial needs.

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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