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Precision Work, Connects the World

Wenzhou Ouhai Standardized Parts Co., Ltd is devoted to exploring and improving lean manufacturing. We deliver high-precision mechanical components trusted by industries worldwide.

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About Jinggong China

Wenzhou Ouhai Standardized Parts Co., Ltd is a leading manufacturer of precision mechanical components based in China. With a strong commitment to innovation and quality, we serve global markets with reliable, high-performance solutions.

Manufacturing Facility

Our Mission

We are devoted to exploring and improving lean manufacturing processes to deliver superior products that meet international standards.

Our goal is to become a world-famous brand enterprise by consistently providing precision-engineered components that connect machines and industries across the globe.

Digital Manufacturing & Lean Production
Advanced Inspection Equipment for Quality Assurance
Global Distribution & Customer Support

Production Equipment

State-of-the-art machinery ensures consistent precision and high-volume output.

Digital Manufacturing

Integrated digital systems optimize efficiency and traceability in every production phase.

Quality Control

Advanced inspection tools ensure every product meets strict quality benchmarks.

Our Product Series

Precision-engineered mechanical components designed for reliability, durability, and seamless integration in industrial applications.

LMZ-I Plum Coupling

LMZ-I Plum Coupling

Flexible jaw coupling with excellent vibration damping and misalignment compensation.

  • High torsional stiffness
  • Zero backlash
  • Maintenance-free operation
Z1 POWER LOCK

Z1 POWER LOCK

Keyless locking device for secure shaft-to-hub connections without stress concentration.

  • High torque transmission
  • Easy installation and removal
  • No keyway stress points
Z2 POWER LOCK

Z2 POWER LOCK

Enhanced keyless locking assembly with improved clamping force and axial load capacity.

  • Higher torque rating than Z1
  • Suitable for heavy-duty applications
  • Corrosion-resistant materials
Keyless Locking Devices

Keyless Locking Devices

Precision-engineered shrink disc assemblies for reliable torque transmission.

  • Eliminates keyway machining
  • Reusable and adjustable
  • Ideal for servo motors and gearboxes

Couplings

Wide range of flexible, rigid, and safety couplings for various industrial drives.

  • Misalignment compensation
  • Vibration damping
  • High-speed capability

Bearing Accessories

Complete support components including locking collars, adapter sleeves, and seals.

  • Precision-machined fit
  • Extended bearing life
  • Easy mounting and dismounting

Retaining Rings

Axial retention solutions for shafts and bores in rotating equipment.

  • Quick installation
  • Space-saving design
  • High load capacity

Auto Spare Parts

Precision components for automotive transmission and drivetrain systems.

  • OEM-quality standards
  • Durable under high stress
  • Strict dimensional tolerances

Flanges

Standard and custom flange connectors for mechanical and piping systems.

  • High-strength materials
  • Accurate alignment
  • Leak-proof sealing

Custom Solutions

Tailored mechanical components based on client specifications and drawings.

  • Engineering support
  • Prototyping available
  • Volume production
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Why Choose Jinggong China?

We combine advanced technology, rigorous quality control, and customer-focused service to deliver unmatched value.

Digital Manufacturing

Integrated CNC systems and automated workflows ensure precision and repeatability.

Advanced Inspection

Every component undergoes strict dimensional and material testing for quality assurance.

Global Delivery

Reliable logistics network serving customers in Europe, Asia, North America, and beyond.

Technical Support

Expert engineering team available for application guidance and custom solutions.

Factory Equipment

Lean Manufacturing Excellence

Our production philosophy centers on continuous improvement and waste reduction. By embracing lean principles, we achieve higher efficiency, lower costs, and faster delivery times.

From raw material sourcing to final packaging, every step is optimized for quality and sustainability.

  • ISO-compliant processes
  • Just-in-time production
  • Real-time quality monitoring
  • Energy-efficient operations
15+
Years in Industry
50+
Countries Served
10M+
Components Annually
99.8%
Quality Pass Rate

Frequently Asked Questions

What are the advantages of keyless locking devices over traditional keyed connections?

Keyless locking devices eliminate stress concentration at keyways, allow infinite positioning on the shaft, provide higher torque transmission, and enable easy assembly/disassembly without damaging shafts or hubs.

Can you manufacture custom components based on our drawings?

Yes, we offer full custom manufacturing services. Our engineering team can review your specifications, provide feedback, and produce prototypes or volume orders according to your exact requirements.

What materials do you use for your couplings and locking devices?

We use high-grade alloy steels, stainless steels, and aluminum alloys depending on application requirements. Material selection is based on strength, corrosion resistance, weight, and operating environment.

What is your typical lead time for standard products?

For in-stock items, we can ship within 3-5 business days. For custom or large-volume orders, lead time is typically 2-6 weeks depending on complexity and quantity.

Do you provide technical support for product selection?

Yes, our technical team is available to assist with product selection, application engineering, and troubleshooting. We ensure you get the right component for your specific needs.

Contact Jinggong China

Reach out to us to discuss your requirements, request samples, or obtain technical documentation. We're here to help you find the right mechanical solutions.

Contact Information

  • Mobile: +86 137 7777 1223
  • Tel: +86-577-86115146
  • Fax: +86-577-86110708
  • Email: [email protected]
  • WhatsApp: +86 137 7777 1223
  • Skype: shaozhiqiang1688

Connect With Us

For detailed inquiries, product specifications, or to place an order, please use the contact details above.

We respond to all messages within one business day.

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