The first-stage sun shaft is a key output component in the planetary
transmission system of a wind turbine gearbox. It directly connects to the sun gear, transmitting power to the next stage of the drive train. Our precision-machined sun
shaft forgings are based on high-strength forged shafts, ensuring optimal material performance through open-die
forging and achieving high dimensional accuracy through advanced machining processes. These shafts provide reliable transmission solutions for wind energy and other industrial applications, ensuring long-term operational stability.
Each precision sun shaft reflects our commitment to meeting the demanding requirements of modern wind energy applications, offering main gearbox manufacturers a dependable, high-performance power transmission solution.
Material & Process:
Made of 18CrNiMo7-6 high-grade alloy steel, offering excellent hardenability, core toughness, and wear resistance.
- Raw Material incoming inspection,
- Blank Cutting,
- Open-die forging,
- Post-forging inspection,
- Normalizing & tempering,
- aw cutting,
- Rough turning,
- Deep-hole drilling,
- heat treatment (quenching & tempering),
- Heat treatment inspection,
- Mechanical & chemical testing,
- Semi-finish turning,
- Inspection (hardness & ultrasonic testing),
- Finish turning & boring,
- Drilling & tapping,
- Dimensional inspection,
- Marking, cleaning, packaging, and warehousing.
Applications:
- MW-class wind turbine main gearboxes
- Large-scale mining crushing equipment transmission systems
- Slewing mechanisms of heavy construction machinery
（Engineering Rendering for Reference）
You might also be interested in our flagship products:
Alloy Steel Double-Sided Profiled
Bearing Cage Forgings – high-strength cages for industrial applications
Ready-to-Mount Custom Alloy Steel
Shrink Discs – precision-machined, fully assembled locking solutions
Explore our complete product range and contact us for tailored solutions to meet your specific operational requirements.
Contact Now