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CFKS A1 Oil Seal 35*43*4/7 A1 Type Oil Seal Hydraulic Piston Seal

CFKS A1 Oil Seal 35*43*4/7 is a high-performance polyurethane hydraulic piston seal designed for leak prevention, low friction, and strong wear resistance. 35-43-4/7 Ideal for hydraulic cylinders and industrial machinery requiring reliable A1 type sealing 35×43×4/7. 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 A1 Oil Seal  Packing 1 pc per bag

 

The CFKS A1 Oil Seal 35*43*4/7 is a precision-engineered hydraulic piston seal designed for high-pressure reciprocating systems. Manufactured from premium polyurethane materials, the A1 oil seal delivers superior sealing performance, reduced friction, and outstanding durability in demanding hydraulic applications.

This A1 type oil seal is optimized for hydraulic pistons, providing reliable sealing to prevent oil leakage and enhance operational efficiency. Its unique lip structure ensures excellent compression, wear resistance, and stability under continuous motion, making it suitable for cylinders in industrial machinery, construction equipment, and automation systems.

CFKS hydraulic A1 oil seals offer long service life, stable performance at varying temperatures, and excellent compatibility with hydraulic oils. They are widely used in hydraulic cylinders, mechanical actuators, agricultural equipment, and engineering machinery, providing customers with low-maintenance and cost-effective sealing solutions.

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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