Sealing Excellence, Securing Industry

CFKS OK Type Piston Seal 95*89*7.8 Combination Oil Seal for Hydraulic Cylinder Piston

CFKS OK 95*89*7.8 Oil Seal ensures reliable piston sealing for hydraulic cylinders. 95-89-7.8 High wear resistance, dual sealing design, and perfect fit for industrial and excavator systems 95×89×7.8 . Find your sealing solution with CFKS — contact us for a quote.

Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type 95*89*7.8 OK Seal  Packing 1 pc per bag

 

The CFKS OK 95×89×7.8 Type Piston Seal is a high-performance combination oil seal designed for hydraulic cylinder pistons. Made from durable NBR or PTFE materials, this OK Oil Seal provides excellent resistance to oil, heat, and wear, ensuring long service life and reliable performance in heavy-duty hydraulic systems.

This OK 95-89-7.8 Piston Oil Seal integrates sealing and dust-proof functions to prevent fluid leakage and contamination. Its precise structure ensures stable operation under high pressure, while the combination lip design offers superior sealing efficiency in both dynamic and static conditions. Ideal for industrial machinery, construction equipment, and hydraulic cylinders.

The CFKS OK 95*89*7.8 Combination Seal is widely used in hydraulic and pneumatic cylinders, excavators, loaders, and other industrial equipment requiring effective sealing performance. Its robust design allows it to operate in harsh environments, providing long-lasting protection and efficiency for hydraulic systems.

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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