Heavy-Duty Forged Gear Shafts – 42CrMo ,42CrMo4, 18CrNiMo7-6 for Transmission Shaft. Our heavy-duty forged gear shafts are engineered for high-load transmission systems, utilizing premium materials such as 42CrMo, 42CrMo4, and 18CrNiMo7-6. These alloys offer outstanding toughness, fatigue strength, and heat treatment response, making them ideal for demanding industrial applications.
Each shaft is forged to refine grain structure, improve internal quality, and ensure superior mechanical performance. With precision machining, these shafts are well-suited for use in wind turbine gearboxes, industrial drives, mining equipment, and other power transmission assemblies requiring reliable torque transfer.
| Material | 4140,4130,18CrNiMo7-6,4340,4330,1.7225,35#
45#,20CrMnTi,18CrNiMo7-6,42CrMo |
| Forging Equipment | 5 TON, 8 TON, 12 TON Hydralic hammer |
| Apply for | Transmission main shaft is used for driving force |
| Manufacturing Process | Forging+heat treatment+rough machining |
| Forging ratio | ≥ 3.0 — Ensures fine grain refinement, enhanced tensile strength, and excellent internal soundness for heavy-duty operation |
| Delivery terms | Rough machining(N+T) |
| Test equipment | Spectrograph, UT device, tensile and impact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
| Service | Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
Key Features:
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Materials: 42CrMo, 42CrMo4, 18CrNiMo7-6
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Process: Precision forging + Rough machining + Heat treatment
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Condition: As forged, normalized & tempered
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Application: Gearboxes, transmission shafts, wind power, heavy machinery
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Customization: Dimensions, splines, keyways, and profiles per drawing
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Inspection: UT, MPI, hardness, and mechanical property testing available
Advantages:
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High strength and torsional resistance
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Long fatigue life under cyclic loading
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Excellent machinability and surface finish
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OEM/ODM services supported
Process flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
Competitive advantages:
Purchase raw materials from certified and reputable steel producers
Full control of forging and heat treatment processes
Dimensions, forging methods, inspection levels can be flexibly customized
Over 25 years of professional experience in drive shaft forging processing
Strong quality assurance and short delivery time for global projects
Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.
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Heavy Duty Forged Drive Shaft 42CrMo 42CrMo4 Transmission Shaft Images
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