Build-to-Print External Ring Gears – Thin-Section Design, Up to 2500 mm, AGMA 12Build-to-Print External Ring Gears – Thin-Section Design
Jiangsu New Yinye Transmission specializes in build-to-print external ring gears, including thin-section designs. With a maximum grinding diameter of 2500 mm and module up to 45 mm, these gears achieve AGMA 12 / DIN 5 accuracy (subject to design review). Thin-section ring gears reduce weight and are used in applications where axial space is limited, such as wind turbine main gearboxes and mining machinery.
Key Selling Points
- Thin-Section Capability: Manufacturing thin-section external ring gears with controlled distortion – reduced weight without compromising strength.
- High-Precision Grinding: Up to 2500 mm diameter, module 45, accuracy AGMA 12 or DIN 5 – ensures smooth running and load distribution.
- Alloy Steel Selection: 42CrMo, 20MnCr5, 18CrNiMo7-6 and other steels – provides high strength, wear resistance, and long fatigue life.
- Full Inspection Package: Tooth profile, pitch, runout, UT, phased-array, grinding-burn check – delivered with material certificates and reports.
- 10+ Years Field Proven: Over 10,000 gears supplied to wind power and metallurgical sectors without major quality complaints – reliable long-term performance.
Technical Specifications
| Parameter | Value |
|---|
| Product Type | External ring gear (custom build-to-print, thin-section available) |
| Max. Grinding Diameter | Approx. 2,500 mm |
| Max. Module | Approx. 45 mm |
| Tooth Profile | Involute (other profiles per drawing) |
| Pressure Angle | 20° typical (custom available) |
| Accuracy Grade | DIN 3962 Class 6–7 / AGMA 9–10 (up to DIN 5 / AGMA 12 subject to review) |
| Materials | 42CrMo, 35CrMo, 40Cr, 20MnCr5, 18CrNiMo7-6, 17CrNiMo6, 18Cr2Ni4WA, Q345D, QT400-15, alloy steel, forged steel, or customer-specified |
| Heat Treatment | Carburizing, nitriding, induction hardening, through hardening per drawing |
Models and Options
Completely custom: outside diameter, module/diametral pitch, tooth count, face width, bore, material, heat treatment, surface treatment, and inspection level are all defined by your drawing. Thin-section geometry can be optimized with our engineering team. Prototype and small-batch orders accepted.
Materials and Structure
Available in a range of alloy and forged steels including 42CrMo, 20MnCr5, 18CrNiMo7-6. Heat treatment tailored to application: carburizing for surface hardness, nitriding for wear resistance, induction hardening for localized strength. External teeth profile is involute with 20° pressure angle as standard. Thin-section designs require careful heat treatment and machining to control distortion – we have proven processes.
Applications
- Wind turbine main gearboxes (parallel shaft stages)
- Mining mill drives and crushers
- Metallurgical rolling mill drives
- Cement mill drives
- Industrial gearboxes for heavy-duty transmission
- Machine tools and railway equipment
Customization
We offer full build-to-print customization: outside diameter, module, tooth count, face width, bore, material, heat treatment, accuracy grade, surface treatment, and inspection requirements. Thin-section geometries are welcome. Contact us with your drawing for a review.
Case Study
Wind Power Gearbox Supply: Supplied over 10,000 custom gears over 5+ years to a Chinese wind turbine gearbox manufacturer. No major quality complaints. Received supplier recognition for consistent quality and delivery.
Metallurgical Furnace Reducer: Supplied approximately 2,000 custom gearbox gears over 10+ years to a Luxembourg-based metallurgical equipment maker. Gears used in furnace-top reducer drives. Reliable long-term performance, no major complaints.
FAQ
- What information do you need to quote? A drawing with material, dimensions, tolerances, heat treatment, and quantity.
- What is the typical lead time? Depends on complexity and quantity; please request a project-specific lead time.
- Do you provide inspection reports? Yes – material certificates, dimensional reports, gear accuracy reports, hardness records, NDT reports, final inspection report.
- Can you achieve AGMA 12 on external thin-section gears? Subject to size and material; we review each drawing to confirm feasibility.
- What payment terms do you offer? T/T deposit with balance before shipment for new customers; negotiable for long-term partners.
- Can you supply small batches or prototypes? Yes, prototype and small-batch orders are evaluated per project requirements.
- Do you offer third-party inspection? Yes, customer or third-party inspection can be arranged by prior agreement.
- What countries do you export to? Europe, North America, Japan, Australia, and other global markets.
Inquiry Information
Contact: Julia
Email: julia@wxyinye.com
Tel: +86-510-85305960
Mobile/WhatsApp: +86-13961777811
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