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CFKS LBI Hydraulic Piston Oil Seal 35*43*5/6.5 PU Oil Resistant LBI Oil Seal

CFKS LBI hydraulic 35-43-5/6.5 piston oil seal 35×43×5/6.5 is an oil resistant PU hydraulic seal 35 43 5/6.5 designed for piston sealing applications. This LBI oil seal 35*43*5/6.5 provides excellent wear resistance, stable oil retention, and smooth operation under pressure. Widely used in hydraulic cylinders and industrial machinery, it ensures reliable sealing performance and long service life in demanding hydraulic systems.  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 LBI Oil Seal   Packing 1 pc per bag

 

The CFKS LBI hydraulic piston oil seal 35*43*5/6.5 is a high-performance LBI oil seal designed for hydraulic piston sealing applications. This LBI hydraulic seal provides reliable oil retention and stable sealing performance in dynamic hydraulic systems.

Manufactured from high-quality polyurethane (PU) material, this hydraulic piston seal offers excellent oil resistance, wear resistance, and high elasticity. The optimized sealing profile ensures effective contact with the cylinder wall, reducing leakage and improving overall hydraulic efficiency.

CFKS LBI hydraulic oil seals are widely used in hydraulic cylinders, construction machinery, industrial equipment, and fluid power systems. With precise dimensions and durable PU construction, this piston oil seal ensures long service life, smooth piston movement, and dependable sealing performance in demanding operating environments.

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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