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CFKS OK Hydraulic Oil Seal 63*44.7*7 Pressure Assisted PTFE OK Piston Seal

CFKS OK 63 44.7 7 hydraulic oil seal 63*44.7*7 is a PTFE OK piston seal 63×44.7×7 designed with a pressure assisted structure for high-pressure hydraulic systems. This hydraulic seal 63-44.7-7 provides low friction, excellent wear resistance, and reliable oil retention during piston movement. Commonly used in hydraulic cylinders and industrial equipment, it ensures smooth operation, reduced leakage, and long service life in demanding hydraulic applications.  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 63*44.7*7 OK Seal  Packing 1 pc per bag

 

The CFKS OK hydraulic oil seal 63*44.7*7 is a high-performance OK piston seal designed for hydraulic piston sealing applications. Featuring a pressure-assisted sealing structure, this PTFE hydraulic seal provides excellent oil control and reliable sealing performance under high-pressure operating conditions.

Manufactured from premium PTFE material, this OK piston seal offers low friction, excellent wear resistance, and outstanding chemical stability. The pressure-assisted design allows the seal to respond effectively to system pressure, ensuring tight sealing and reduced leakage during dynamic piston movement.

CFKS OK hydraulic piston seals are widely used in hydraulic cylinders, industrial machinery, construction equipment, and fluid power systems. With precise dimensions and durable PTFE construction, this hydraulic oil seal delivers long service life, smooth operation, and consistent sealing performance in demanding applications.

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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