First-Stage Forged Ring Gear Blank Rough Machined

First-Stage Forged Ring Gear Blank Rough Machined

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Packaging & Delivery

Product Description

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Packaging & Delivery

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Product Description

First-Stage Ring Gear: The Ultra-High-Torque Foundation for Heavy-Duty Drivetrains

As the largest ring gear in a wind turbine gearbox, the first-stage ring gear is responsible for bearing the initial high-torque input from the main shaft. Manufactured from premium alloy steel through ring rolling forging, and Precision Machining by subsequent customers, it features robust tooth profiles and deep carburizing and quenching treatment. This enables it to withstand extreme impact loads caused by wind load variations. Its massive size and strength make it the core load-bearing stage of the transmission system.

manufacturing process & quality control:

Incoming Material Inspection
Blank Cutting
Ring-Rolling
Post-Forging Inspection
heat treatment (Normalizing, Heat Treatment Inspection)
Physical & Chemical Testing
Machining NDT Surfaces
Preliminary NDT
Rough Turning
Inspection (Ultrasonic Testing, Spectroscopic Analysis, Hardness Testing)
Marking, Cleaning & Packaging for Warehousing

Materials: Alloy Steel (e.g.42CrMo4、42CrMo）

Applications :

Wind Turbine Gearboxes: Matches the low-speed planetary transmission in wind turbine gearboxes.
Mine Hoisting Systems: Main drive gear for the drum in large mine hoists.
Heavy Presses: Main reduction gear for mega-ton hydraulic presses.
Marine Propulsion Systems: Main reduction gear for medium and large vessel propulsion systems.
Port Machinery: Travel and slewing mechanism reducers for portal cranes and rubber-tyred gantry cranes (RTGs).

To complement the ultra‑high‑torque first‑stage ring gear, explore our Machined Shafts line—engineered to deliver the precise dimensional accuracy, and load‑bearing strength required for heavy‑duty drivetrains applications. Contact us today to learn how these shafts can seamlessly integrate with your system and enhance overall performance and reliability.

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