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CFKS OUY Oil Seal 55*70*12 PU OUY Hydraulic Seal for Hydraulic Cylinder Hydraulic Cylinder Oil Seal

The CFKS OUY Oil Seal 55 70 12 is a PU hydraulic cylinder oil seal 55×70×12 offering excellent wear resistance 55-70-12 and sealing performance. Designed for excavators and industrial machinery, this OUY hydraulic seal 55*70*12 prevents leakage, protects the system, and extends equipment lifespan.

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Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type 55*70*12 OUY Seal  Packing 1 pc per bag

 

The CFKS OUY Oil Seal 55*70*12 is a premium PU hydraulic oil seal designed for high-pressure and high-load hydraulic applications. Made from durable polyurethane, this OUY hydraulic seal provides exceptional wear resistance, low friction performance, and reliable sealing efficiency in demanding industrial environments. It is widely used in hydraulic cylinders, excavator cylinders, and mechanical equipment.

This hydraulic cylinder OUY oil seal efficiently prevents oil leakage, contamination, and dust intrusion, ensuring long-term system stability. The 55×70×12 structure fits a wide range of cylinder sizes, offering excellent adaptability for excavator systems, industrial hydraulic cylinders, and heavy-duty machinery. With optimized sealing lips and stable pressure resistance, the PU OUY hydraulic seal extends equipment service life and reduces maintenance downtime.

CFKS provides high-quality OUY oil seals designed to meet OEM and aftermarket standards. Featuring high elasticity, anti-extrusion performance, and chemical resistance, this hydraulic cylinder oil seal ensures reliable operation even in harsh working conditions. Ideal for construction machinery, mining equipment, agricultural equipment, and industrial automation systems, it offers a perfect sealing solution for customers seeking durability and high precision.

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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