Hunan Dinghan New Material Technology Co., LTD
| Delivery Time | 7 working days for stock, 20-35 days for production orders |
| Payment Terms | T/T,Western Union |
| Heat Treatment | Carburizing, Quenching, Tempering |
| Spline Standard | DIN 5480 / ANSI B92.1 |
| Shaft Length | 100-800mm Customizable |
| Supply Ability | 50000 Pieces per Month |
| Surface Hardness | 58-62 HRC |
| Gear Accuracy Grade | ISO 6-7 Grade |
| Application | Heavy-Duty Truck Transmission |
| Effective Case Depth | 0.8-1.2mm |
| Packaging Details | Individually wrapped with VCI anti-rust paper, partitioned corrugated carton, palletized for sea freight |
| Material | 20CrMnTi Alloy Steel |
| Place of Origin | Changsha, China |
| Brand Name | SJ, DH |
| Model Number | Customized per Drawing |
| Certification | ISO 9001:2015 |
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Product Specification
| Delivery Time | 7 working days for stock, 20-35 days for production orders | Payment Terms | T/T,Western Union |
| Heat Treatment | Carburizing, Quenching, Tempering | Spline Standard | DIN 5480 / ANSI B92.1 |
| Shaft Length | 100-800mm Customizable | Supply Ability | 50000 Pieces per Month |
| Surface Hardness | 58-62 HRC | Gear Accuracy Grade | ISO 6-7 Grade |
| Application | Heavy-Duty Truck Transmission | Effective Case Depth | 0.8-1.2mm |
| Packaging Details | Individually wrapped with VCI anti-rust paper, partitioned corrugated carton, palletized for sea freight | Material | 20CrMnTi Alloy Steel |
| Place of Origin | Changsha, China | Brand Name | SJ, DH |
| Model Number | Customized per Drawing | Certification | ISO 9001:2015 |
| High Light | Truck Transmission Gear Shaft ，20CrMnTi Alloy Steel Spline Shaft ，Automotive Heat Treated Shaft | ||
The automotive transmission gear shaft is a precision drivetrain component designed for heavy-duty commercial vehicle gearboxes. Constructed from 20CrMnTi alloy steel with advanced carburizing heat treatment, this shaft delivers the high torque capacity, wear resistance, and dimensional stability essential for millions of shift cycles in demanding road and off-road applications.
| Material | 20CrMnTi Alloy Steel |
| Heat Treatment | Carburizing, Quenching, Tempering |
| Surface Hardness | 58-62 HRC |
| Effective Case Depth | 0.8-1.2mm |
| Spline Standard | DIN 5480 / ANSI B92.1 |
| Gear Accuracy Grade | ISO 6-7 Grade |
| Shaft Length | 100-800mm Customizable |
| Application | Heavy-Duty Truck Transmission |
Designed for main shaft, countershaft, and output shaft positions in manual and automated manual transmissions (AMT) for heavy trucks, buses, and commercial vehicles. Compatible with Eaton Fuller, ZF, Allison, and Fast Gear transmission series. Ideal for both OEM production and aftermarket replacement supply chains.
Every transmission gear shaft undergoes 100% inspection including gear profile measurement on Klingelnberg P-series analyzers, spline go/no-go gauge verification, magnetic particle crack detection, and Rockwell hardness testing. We provide full quality documentation with every shipment.
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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