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Clark Seals

Precision Elastomeric Seals for OEMs & Oil & Gas | Custom Design, Engineering & Manufacturing Since 1956

Trusted Seal Engineering Since 1956

Founded in 1956, Clark Seals is a highly specialized seal engineering firm and precision manufacturer of elastomeric seals for original equipment manufacturers and oil and gas drilling and production.

With decades of experience, we deliver innovative sealing solutions that meet the most demanding industrial requirements. Our commitment to quality, engineering excellence, and rapid response sets us apart in the global sealing industry.

Learn More About Us
Clark Seals Manufacturing Facility

Our Core Capabilities

From concept to production, Clark Seals offers comprehensive engineering and manufacturing services to solve your toughest sealing challenges.

Custom Seal Design

Custom seals are individually designed and optimized for each application, ensuring maximum performance and longevity.

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Application Engineering

Full engineering support for new and existing applications, from concept validation to field implementation.

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Problem Seal Analysis

Problem seals can be diagnosed and redesigned within 24 hours, minimizing downtime and improving reliability.

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Precision Manufacturing

Clark Seals Ningbo is the most technically advanced seal factory in the world, ensuring unmatched consistency and quality.

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Our Products

High-performance elastomeric seals engineered for durability, reliability, and precision across industries.

Shaft Seals

Shaft Seals

Precision-engineered shaft seals for dynamic applications requiring long service life and leak-free performance.

  • Available in multiple elastomers
  • Customizable for speed, pressure, and media
  • Used in pumps, motors, and rotating equipment
View Shaft Seal Catalog
Bearing Seals

Bearing Seals

High-integrity bearing seals that protect against contamination and retain lubrication in harsh environments.

  • Multiple lip configurations
  • Effective in dusty and wet conditions
  • Extended bearing life and reduced maintenance
View Bearing Seal Catalog
Custom Seals

Custom Seals

Fully customized elastomeric seals designed to meet unique OEM specifications and performance demands.

  • Prototyping and validation support
  • Materials selected for chemical and thermal resistance
  • High-volume production capability
Request Custom Design
Problem Seal Redesign

Problem Seal Redesign

Rapid analysis and redesign of failed or underperforming seals to improve reliability and reduce costs.

  • 24-hour turnaround for most cases
  • Root cause failure analysis
  • Improved geometry and material selection
Submit a Problem Seal
Quality Certified Seals

Quality Certified Seals

Seals manufactured under ISO 9001 and TS 16949 quality systems, ensuring consistency and traceability.

  • ISO 9001:2015 Certified
  • TS 16949 for Automotive Applications
  • Full documentation and testing reports
View Certifications
Ningbo Manufacturing

CSN Precision Seals

Seals produced at our state-of-the-art facility in Ningbo, China — one of the most advanced seal factories in the world.

  • Automated molding and inspection
  • Advanced testing laboratories
  • Global supply chain integration
Learn About CSN
Elastomeric Materials

Elastomeric Materials

Wide range of rubber compounds including Nitrile, Viton, EPDM, Silicone, and custom blends.

  • High temperature and chemical resistance
  • Low friction and wear formulations
  • Compliant with FDA, NSF, and other standards
Material Selection Guide
Industrial Sealing Solutions

Industrial Sealing Solutions

Complete sealing systems for complex industrial machinery and equipment.

  • Integrated seal and housing designs
  • Multi-lip and labyrinth configurations
  • Field service and technical support
Contact Engineering

Industries We Serve

From agriculture to energy, our seals are trusted in the most demanding environments.

Agriculture & Construction

Seals for tractors, excavators, and heavy machinery exposed to dirt, dust, and vibration.

Appliance

Reliable seals for washing machines, dryers, and household equipment.

Automotive

Precision seals for transmissions, axles, and engine components.

Energy

High-performance seals for oil & gas drilling, production, and refining.

Industrial Equipment

Seals for pumps, compressors, and manufacturing systems.

Outdoor Power

Durable seals for lawn mowers, snow blowers, and power tools.

Process Industries

Chemical-resistant seals for food, pharmaceutical, and chemical processing.

Recreation

Seals for ATVs, boats, and recreational vehicles.

Real-World Case Studies

See how Clark Seals solved critical sealing challenges across industries.

Snow Blower

Improved shaft seal life by 300% in cold, wet conditions.

Prosthetic Knee

Designed ultra-reliable seal for medical device with zero failure rate.

Washing Machine

Eliminated leaks in high-speed drum applications.

Crown Block

Redesigned seal for oil rig equipment operating under extreme loads.

Get in Touch

Contact Clark Seals for engineering support, quotes, or technical questions.

Phone

800.331.8020

918.664.0587

Email

info@clarkseals.com

Address

3824 S 79th East Ave, Tulsa, Oklahoma 74145

Fax

918.664.1467

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