Sealing Excellence, Securing Industry

CFKS Dkbi Wiper Seals 85*99*8/11 Hydraulic Cylinder Dust Oil Seals

CFKS 85*99*8/11 DKBI Oil Seal offers dual-lip dust and oil protection for hydraulic cylinders. 85×99×8/11 Ideal for excavators and machinery, ensuring clean, efficient, and long-lasting sealing performance 85-99-8/11.  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 85*99*8/11 DKBI Seal  Packing 1 pc per bag

 

The CFKS DKBI Oil Seal is a dual-lip hydraulic wiper seal designed to provide superior dust and oil control in demanding hydraulic applications. Made from high-quality PU or NBR, it prevents contamination and protects cylinder components from dirt, moisture, and oil leakage.

This DKBI Wiper Seal combines excellent elasticity and wear resistance with a robust dual-lip design, ensuring effective sealing and extended service life. Its integrated dust lip efficiently removes debris from the piston rod surface, while the inner lip retains lubrication, reducing friction and system wear.

Ideal for hydraulic cylinders, excavators, construction machinery, and industrial equipment, the CFKS DKBI Hydraulic Oil Seal delivers consistent performance in harsh working environments, extending equipment lifespan and ensuring smooth operation.

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.

Go to Top