Sealing Excellence, Securing Industry

CFKS Hydraulic LBH Rod Wiper Seal 31.5*39.5*5/6.5 Polyurethane LBH Dust Seal for Excavator

CFKS hydraulic 31.5-39.5-5/6.5 LBH rod wiper 31.5 39.5 5/6.5 seal 31.5×39.5×5/6.5 is made from wear-resistant polyurethane. Designed to 31.5*39.5*5/6.5 prevent dust and contaminants from entering hydraulic cylinders in excavators and industrial equipment. 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 LBH Seal  Packing 1 pc per bag

 

The CFKS hydraulic LBH rod wiper seal 31.5*39.5*5/6.5 is designed to effectively protect hydraulic cylinders by preventing dust, dirt, mud, and other contaminants from entering the system. The LBH profile is specifically engineered for rod sealing applications, ensuring reliable wiping performance under harsh working conditions.

Made from high-quality polyurethane (PU) material, this LBH dust seal offers excellent wear resistance, high elasticity, and superior resistance to abrasion and impact. It maintains stable wiping performance during continuous reciprocating motion and helps extend the service life of internal hydraulic seals.

CFKS LBH rod wiper seals are widely used in excavators, loaders, hydraulic presses, and construction machinery, providing dependable protection for hydraulic rods operating in demanding 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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