Sealing Excellence, Securing Industry

CFKS UR Rod Seal 120*136*18 PU Seal Hydraulic Seal UR Type Piston Rod Seal

CFKS UR Oil Seal 120*136*18 — high-performance 120×136×18 PU hydraulic rod seal for piston rods. 120-136-18 Provides excellent sealing, oil resistance, and durability in heavy-duty hydraulic applications. 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 120*136*18 UR Oil Seal  Packing 1 pc per bag

 

The CFKS UR Rod Seal 120*136*18 PU Seal is designed for hydraulic cylinders and piston rods, providing superior sealing performance and durability. Manufactured from high-quality polyurethane, this UR type hydraulic seal ensures excellent resistance to pressure, abrasion, and oil leakage, extending the lifespan of your hydraulic system

This UR Oil Seal features a flexible U-shaped lip design that offers a tight, low-friction seal under both high and low pressure. The polyurethane (PU) construction enhances resilience, temperature resistance, and wear protection, making it ideal for heavy-duty applications such as excavators, forklifts, and hydraulic presses.

Widely used in hydraulic cylinders, piston rods, and mechanical equipment, the CFKS UR hydraulic rod seal prevents fluid leakage and contamination. It ensures stable performance and reliability across construction machinery, agricultural equipment, and industrial hydraulic systems.

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.

MESSAGE

Go to Top