18CrNiMo7-6 20CrMnMo Alloy Steel Forging Blank For Sun Gear Planetary Gear
Price:
USD1000-USD2000/piece
MOQ:
1
Delivery Time:
30days
Brand:
Tiangong
Product Description
18CrNiMo7-6 20CrMnMo Alloy Steel Forging Blank For Sun Gear Planetary Gear. Our 18CrNiMo7-6 and 20CrMnMo alloy steel forging blanks are the foundational material for high-performance sun and planetary gears. Meticulously forged, these blanks deliver exceptional strength, toughness, and fatigue resistance, ensuring the final gears withstand extreme torque and continuous operation in demanding power transmission systems.
Product Features
- Superior Mechanical Properties: Forged from premium alloy steels, offering outstanding strength, hardness, and surface hardenability for high-stress gears.
- Exceptional Fatigue Resistance: Refined grain structure provides superior resistance to cyclic loading and contact fatigue, extending gear lifespan.
- High Toughness and Wear Resistance: Designed to resist wear, pitting, and spalling, ensuring smooth power transmission even under heavy loads.
- Optimal for Case Hardening: These alloy steels are ideal for case hardening, allowing for a hard surface with a tough, ductile core.
- Internal Purity and Homogeneity: Forging eliminates defects, resulting in a dense, uniform material structure for consistent performance.
- Precision Machining Foundation: Supplied as near-net-shape blanks for efficient machining to precise gear tooth geometries.
Application Scenarios
These alloy steel forged blanks are indispensable for sun and planetary gears in a wide range of heavy-duty and high-precision applications:
- Wind Energy Gearboxes: Critical for efficiently converting low-speed rotor rotation to high-speed generator input, handling immense torque.
- Heavy Industrial Machinery: Found in planetary gear systems for large excavators, mining equipment, crushers, and rolling mills, providing robust power.
- Automotive & Off-Highway Transmissions: Essential for automatic transmissions and wheel drives in heavy trucks and construction vehicles.
- Marine Propulsion Systems: Used in marine gearboxes for ships and offshore platforms, ensuring reliable power transfer.
- Robotics & Automation: Employed in high-precision robotic arms and automated machinery requiring compact, high-torque gear solutions.
- Aerospace & Defense: For gears in aircraft landing gear and helicopter rotor systems, demanding lightweight yet extremely strong components.
| Item | Details |
|---|---|
| Product Name | 18CrNiMo7-6 20CrMnMo Alloy Steel Forging Blank For Sun Gear Planetary Gear |
| Material Grades | - Case-hardening alloy steel: 18CrNiMo7-6 - Known for high tensile strength, excellent core toughness, and superior wear resistance after heat treatment - Optimized for surface carburizing and deep hardening applications in rotating power components |
| Forging Equipment | - Hydraulic Hammers: 5T, 8T, 12T - Supports custom open die forging for long shafts and stepped blanks - Suitable for heavy-duty transmission elements with complex geometries |
| Manufacturing Process | Forging → Heat Treatment → Rough Machining → Finish Machining (optional) → Dimensional & Ultrasonic Inspection |
| Forging Ratio | ≥ 3.0 — Promotes fine grain structure, uniform fiber alignment, and improved fatigue life under high-speed rotational and torsional loads |
| Applications | Forged blanks engineered for: - Transmission shafts, gear blanks, coupling hubs, spline drives - Used in heavy machinery, mechanical gearboxes, metallurgical drives, and wind turbine systems - Withstands high torque, cyclic loading, and localized surface fatigue |
| Heat Treatment Options | - Carburized + Quenched + Tempered: Delivers hardened wear-resistant surface and tough, ductile core - Optional normalization or stress relieving for intermediate machining steps |
| Testing & Inspection | - Chemical Analysis: Checked using optical spectrometry - Mechanical Testing: Tensile strength, impact toughness, and hardness values - Ultrasonic Testing: Ensures no internal cracks or segregations - Dimensional Checks: Bore, runout, and parallelism control tools |
| Value-Added Services | - Precision Shafts: Custom-Made, Prepped & Delivered We offer custom shaft lengths, stepped profiles, and bore dimensions. Each piece features CNC pre-machining, anti-rust protection, and batch identification, with full logistics coordination for all deliveries. |
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Company
Changzhou Tiangong Forging Co., Ltd.
Location
Wangxia Village, Luoxi Town, Xuejia Town, Xin Bei District, Changzhou City, Jiangsu Province, China
Contact Person
Mia Liu