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Precision Gears & Gearmotors
Engineered for Excellence

IIYOU Industries – Sino-Italian Joint Venture since 2006. Manufacturing high-quality transmission and differential gears, industrial gearmotors, and precision components based on European standards.

About IIYOU Industries

IIYOU Industries Manufacturing Facility

Sino-Italian Excellence in Gear Manufacturing

CHONGQING IIYOU INDUSTRIES Co., Ltd is a Sino-Italian Joint Venture established in 2006 to manufacture high-quality transmission and differential gears, assembled gear units for the automotive sector, and complete industrial gearmotors and gearboxes. We produce each single gear component based on strict European quality standards.

Our mission is to deliver precision-engineered solutions to OEMs and aftermarket customers worldwide. With over 17 years of experience in the Chongqing region, we have built a strong reputation for reliability, innovation, and technical excellence.

2006
Founded
17+
Years Experience
Global
Reach

Our Certifications

We adhere to the highest international standards in quality, environmental management, and occupational health & safety.

IATF 16949 Certification

IATF 16949

ISO 9001

ISO 14001

ISO 45001

Our Products

Precision-engineered components for automotive and industrial applications. Each product is manufactured to meet the highest standards of durability, efficiency, and performance.

Precision Gears

Precision Gears

High-precision gears for transmission and differential systems. Manufactured with advanced CNC technology and strict quality control.

  • Module range: 0.5 – 12
  • Material: Alloy steel, case hardened
  • Precision grade: DIN 5 to 8
Shafts

Shafts

Custom-engineered shafts for gearboxes and drivetrain systems. Precision ground and balanced for optimal performance.

  • Diameter range: 10 – 150 mm
  • Material: 20CrMnTi, 40Cr, 42CrMo
  • Surface hardness: 58-63 HRC
Hypoid & Zerol Bevel Gears

Hypoid & Zerol Bevel Gears

High-torque bevel gears for differential applications. Designed for smooth operation and long service life.

  • Spiral angle: 35° – 45°
  • Ratio range: 2.5:1 – 6.5:1
  • Load capacity up to 5000 Nm
Ring Gears

Ring Gears

Large-diameter ring gears for heavy-duty applications. Precision hobbed and heat-treated for maximum durability.

  • Outer diameter: 200 – 1200 mm
  • Material: 20CrNiMo, 18CrNiMo7-6
  • Hardened and ground teeth
Housing & Differential Cases

Housing & Differential Cases

Cast and machined housings for gearboxes and differentials. Designed for precise alignment and sealing.

  • Material: Cast iron, aluminum alloy
  • CNC precision machining
  • Leak-tested and pressure-tested
Industrial Gearmotors

Industrial Gearmotors

Complete gearmotor units for industrial automation, material handling, and process machinery.

  • Power range: 0.12 – 200 kW
  • Gear ratios: 5:1 – 300:1
  • IEC & NEMA motor frames
Industrial Gearboxes

Industrial Gearboxes

Helical, bevel-helical, and planetary gearboxes for heavy-duty industrial applications.

  • Torque up to 50,000 Nm
  • Housing: Cast iron or welded steel
  • Sealed for harsh environments
Custom Gear Components

Custom Gear Components

OEM-specific gear components manufactured to customer drawings and specifications.

  • Prototyping and small batches
  • Reverse engineering available
  • Full traceability and documentation

Applications

Automotive Applications

Our gears and gear units are used in passenger cars, trucks, and commercial vehicles for transmission, differential, and drivetrain systems. We serve both OEM and aftermarket segments with high-reliability components.

  • Passenger car transmissions
  • Heavy-duty truck differentials
  • Off-road and construction vehicle gears
  • Aftermarket replacement components

Industrial Applications

IIYOU gearmotors and gearboxes power a wide range of industrial machinery, including conveyors, mixers, cranes, and processing equipment.

  • Conveyor systems
  • Material handling equipment
  • Mining and construction machinery
  • Chemical and process industry
  • Renewable energy systems

Why Choose IIYOU Industries?

Global Standards

Manufacturing based on European quality standards with full compliance to IATF 16949, ISO 9001, and other international certifications.

Advanced Manufacturing

State-of-the-art CNC machining, heat treatment, and gear grinding facilities ensure precision and consistency in every component.

Customer-Centric Approach

Professional team ready to listen and meet customer requirements with technical support, prototyping, and custom solutions.

Contact Us

Get in Touch

IIYOU Professional Work Team is always ready to listen and meet the requirements of our customers.

Phone

+86 23 86076420

Mobile: +86 13072331746

Address

No.6 Tianxing Road, Nantong Town, Wansheng EDZ, 400803 Chongqing, PR China

Send Us a Message

For inquiries, quotes, or technical support, please visit our official website to contact our team.

Visit Official Website

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