Hunan Dinghan New Material Technology Co., LTD
| Heat Treatment | Low-Pressure Carburizing, Oil Quenching, Deep Freezing |
| Tooth Surface Roughness | Ra ≤ 0.4 μm |
| Gear Accuracy Grade | ISO 5-6 Grade |
| Surface Hardness | 58-62 HRC |
| Bearing Journal Runout | ≤ 0.01mm |
| Supply Ability | 10000 Pieces per Month |
| Delivery Time | 10 working days for stock, 30-45 days for custom production |
| Application | Wind Turbine Main Gearbox |
| Payment Terms | T/T |
| Packaging Details | VCI anti-corrosion wrap, industrial-grade protective coating, reinforced export wooden crate with shock indicators |
| Material | 18CrNiMo7-6 Case Hardening Steel |
| Core Hardness | 35-45 HRC |
| Model Number | Customized per Drawing |
| Certification | ISO 9001:2015 |
| Place of Origin | Changsha, China |
| Brand Name | SJ, DH |
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Product Specification
| Heat Treatment | Low-Pressure Carburizing, Oil Quenching, Deep Freezing | Tooth Surface Roughness | Ra ≤ 0.4 μm |
| Gear Accuracy Grade | ISO 5-6 Grade | Surface Hardness | 58-62 HRC |
| Bearing Journal Runout | ≤ 0.01mm | Supply Ability | 10000 Pieces per Month |
| Delivery Time | 10 working days for stock, 30-45 days for custom production | Application | Wind Turbine Main Gearbox |
| Payment Terms | T/T | Packaging Details | VCI anti-corrosion wrap, industrial-grade protective coating, reinforced export wooden crate with shock indicators |
| Material | 18CrNiMo7-6 Case Hardening Steel | Core Hardness | 35-45 HRC |
| Model Number | Customized per Drawing | Certification | ISO 9001:2015 |
| Place of Origin | Changsha, China | Brand Name | SJ, DH |
| High Light | Wind Turbine Gearbox Shaft ，18CrNiMo7-6 Carburized Helical Shaft ，Precision Ground Output Shaft | ||
The wind turbine gearbox output shaft is a mission-critical component that transfers torque from the planetary and helical gear stages to the generator coupling. Fabricated from premium 18CrNiMo7-6 case-hardening steel
| Material | 18CrNiMo7-6 Case Hardening Steel |
| Heat Treatment | Low-Pressure Carburizing, Oil Quenching, Deep Freezing |
| Surface Hardness | 58-62 HRC |
| Core Hardness | 35-45 HRC |
| Gear Accuracy Grade | ISO 5-6 Grade |
| Tooth Surface Roughness | Ra ≤ 0.4 μm |
| Bearing Journal Runout | ≤ 0.01mm |
| Application | Wind Turbine Main Gearbox |
Suitable for 1.5MW to 8MW onshore and offshore wind turbine main gearboxes including planetary carrier output shafts, helical parallel stage pinion shafts, and high-speed output shafts.
Our dedicated wind energy component production cell features climate-controlled grinding bays, in-process gear measurement on Klingelnberg P100 precision centers, and full material traceability from mill sources. We understand the supply chain requirements of the wind energy sector, first article inspection reports, and serial production capability.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1994
Total Annual:
70 million-100 million
Employee Number:
50~60
Ecer Certification：
Verified Supplier
Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Cha... Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Cha...
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