Sealing Excellence, Securing Industry

CFKS DHS Piston Seal 140*153*7/9.5 DHS Oil Seal Double Lip Hydraulic Seal

The CFKS DHS piston seal 140×153×7/9.5 is a double lip DHS oil seal 140 153 7/9.5 designed for hydraulic cylinder piston sealing. It offers reliable oil retention, strong wear resistance, and stable performance under high pressure. This DHS 140*153*7/9.5 hydraulic seal 140-153-7/9.5 is ideal for excavators, construction machinery, and industrial hydraulic systems requiring durable and efficient piston sealing solutions.   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 DHS Oil Seal 140*153*7/9.5  Packing 1 pc per bag

 

The CFKS DHS piston seal 140×153×7/9.5 features a double lip sealing structure designed for hydraulic piston applications. The DHS oil seal provides excellent oil retention, reduced leakage, and stable sealing performance under reciprocating motion and pressure fluctuations.

 

Manufactured from high quality wear resistant materials, this DHS hydraulic seal offers strong abrasion resistance, good elasticity, and reliable extrusion resistance under high pressure. The double lip design improves sealing efficiency and extends service life in demanding hydraulic environments.

With accurate dimensions of 140*153*7/9.5, this DHS piston seal ensures easy installation and secure fitting. It is widely used in hydraulic cylinders, construction machinery, excavators, and industrial hydraulic systems requiring reliable double lip piston 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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