First-Stage Sun Gear Blank

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Product Description

Packaging & Delivery

Product Description

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Packaging & Delivery

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Product Description

Wind Turbine Gearbox First-Stage Sun Gear | The Power Core for Low-Speed, High-Torque Transmission

The first-stage sun gear acts as the initial power hub in the wind turbine gearbox drive train, directly bearing the low-speed, high-torque input from the main shaft. Based on premium carburizing steel 18CrNiMo7-6, it undergoes precision forging and quenching & tempering / normalizing + tempering pretreatment. This process grants the core a tough and robust performance, perfectly preparing it for any subsequent carburizing and quenching.

This gearbox component is characterized by its massive size, making it the most robust sun gear in the system. Manufactured from 18CrNiMo7-6 material and subjected to an extremely rigorous "enhanced" process flow, we ensure it possesses unparalleled structural integrity and fatigue life.

Production & Inspection Flow:

Incoming Material Inspection,
Blank Cutting,
ring rolling,
Post-forging Inspection,
Quenching & Tempering / Normalizing + Tempering,
Physical & Chemical Testing,
Machining NDT Surfaces,
Preliminary NDT,
Rough Turning,
Inspection (Ultrasonic Testing, Spectroscopic Analysis, Hardness Testing),
Semi-Finish Turning,
Dimensional Inspection,
Hardness Testing,
Marking, Cleaning & Packaging for Warehousing.

Core Parameters:

Material: Alloy Steel (e.g., 18CrNiMo7-6)
Condition: Forged, heat-treated, and semi-finished
Typical Size: ~Φ1701mm × 468mm (Customizable)
Core Value: Provides a tough substrate and near-net shape for maximum torque operating conditions

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Explore our complete product range and contact us for tailored solutions to meet your specific operational requirements.

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