Jul 17: CFKS Expert Hydraulic Seals: Precision Sealing Solutions for Demanding Applications
Jul 16: CFKS Deepens Industry Expertise with High-Performance Washing Machine Seals
Jul 15: Understanding Bonded Seals: Structure, Function, and Applications
Jul 11: CFKS Expands Its Hydraulic Sealing Portfolio with High-Performance TG Oil Seals for Rotary Shaft Applications
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CFKS Rubber Seals Oring Box Repair Seal O-Ring Kit Set
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CFKS Rubber Seals Oring Box Repair Seal O-Ring Kit Set

CFKS Manufacturer Customised FKM O-Ring High Quality Food Grade O-Ring Different Sizes FKM O-Ring Rubber
Rubber Seal O-Ring Box Repair Seal O-Ring Rubber O-Ring Kit Repair Box For Excavator 30 Sizes of O-Ring Kits

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Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type Oil Seal  Packing 1 pc per bag

 

O-Rings are among the most widely used and cost-effective sealing solutions across various industrial sectors. Designed in a torus shape (a circular cross-section), O-Rings create a secure seal between two or more parts to prevent the leakage of liquids or gases under pressure. Whether in static or dynamic conditions, O-Rings offer simple yet highly effective sealing performance, making them essential components in thousands of mechanical systems.

CFKS O-Rings are manufactured using high-quality elastomers such as Nitrile Rubber (NBR), Fluorocarbon (FKM/Viton®), Ethylene Propylene Diene Monomer (EPDM), Silicone (VMQ), and other specialty compounds. Each material is selected for its superior resistance to oil, chemicals, extreme temperatures, and wear. Our O-Rings meet international standards including AS568 (inch sizes), DIN (metric), JIS, and GB. We offer a full range of hardness options, colors, and custom sizes to meet diverse industry requirements. These O-Rings provide reliable sealing in operating temperatures ranging from -60°C to +250°C, depending on the material.

With exceptional durability and sealing efficiency, CFKS O-Rings are used in a wide array of industries and equipment. Typical applications include hydraulic and pneumatic cylinders, automotive engines and brake systems, pumps and valves, industrial compressors, food processing machinery, and general-purpose sealing kits. Their ease of installation, reusability, and cost-effectiveness make O-Rings the preferred choice for OEMs, MRO operations, and global machinery manufacturers.

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.

 

Bonded Seal (2) BS Seal (2) Cassette Oil Seal (2) Combi Oil Seal (2) Construction Seal (10) Coupling Spider (2) DAS/ODI Piston Seal (2) DH Seal (2) DKBI Seal (1) DK Seal (2) DLI Seal (1) DWI Seal (1) EC Cup Seal (3) GA Seal (1) Glyd Ring (2) Guide Ring (4) High Pressure Water Seal (2) Hydraulic Oil Seal (24) Mechanical Seal (2) O-Ring/O-Ring Kit (2) OK Seal (1) OUY Seal (1) Piston Seal (7) Power Transmission Parts (2) Rod Seal (4) Rotary Shaft Oil Seal (8) Split Oil Seal (2) Spring Energized Seal (2) Stainless Steel Oil Seal (2) TC/TG Seal (95) TCV/TCN (4) UN/USH/UPH Rod Seal (4) VA/VS Seal (2) Wiper Seals/Dust Seal (9) X-Ring (2)

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