Forged and CNC Machined Flanges
A flange gear is a precision-engineered gear component that integrates a gear body with a flange structure, allowing direct mounting to shafts, housings, or couplings. At Weforging, each forged flange gear is manufactured through an integrated forging + CNC machining + testing process, achieving high strength, accuracy, and perfect concentricity. Moreover, our ISO-certified production combines advanced metal forming and precision cutting to ensure consistent torque transmission and smooth engagement. As a result, Weforging’s CNC machined flange gears deliver exceptional performance and durability across automotive, energy, and industrial machinery sectors.
What Is a Flange Gear
A flange gear is a compact power-transmission component that combines the functionality of a gear with the mounting stability of a flange. It typically features internal splines or gear teeth for torque transfer and an outer flange for direct bolted assembly. Compared with conventional gears, flange gears simplify installation, reduce alignment errors, and enhance structural rigidity. Furthermore, their integrated design ensures superior load distribution, making them ideal for gearboxes, differentials, and precision motion systems.
Manufacturing Process
Weforging employs a complete in-house manufacturing system that integrates forging, machining, and inspection to deliver precision and reliability at every stage:
Material Selection – Alloy or carbon steels such as 20CrMnTi, 42CrMo, and 8620H, optimized for strength and toughness.
Closed Die Forging – Forms dense, high-integrity blanks with refined grain flow for maximum durability.
CNC Turning & Milling – Shapes the flange and gear body with high precision and excellent surface finish.
Gear Hobbing & Spline Cutting – Ensures accurate tooth geometry and tight dimensional tolerances.
Heat Treatment – Carburizing, quenching, and tempering to improve hardness, wear resistance, and fatigue life.
Final Inspection – Includes CMM verification, tooth contact analysis, and ultrasonic testing for complete quality assurance.
In addition, this integrated process allows Weforging to maintain strict control over material flow, accuracy, and consistency across all production stages.
Key Advantages of Weforging Flanges
Weforging’s flange gears are engineered for efficiency, precision, and reliability in dynamic transmission systems.
High Strength Construction – Forged blanks provide dense structure and uniform mechanical properties.
Dimensional Accuracy – CNC machining guarantees excellent runout and alignment precision.
Optimized Gear Teeth – Precision hobbing ensures smooth torque transfer and quiet operation.
Extended Service Life – Controlled heat treatment improves hardness and long-term wear performance.
Custom Engineering Options – Available in various modules, diameters, and materials to meet OEM standards.
Moreover, every flange gear is produced with attention to detail, ensuring dependable performance in high-load, high-speed environments.
Applications by Industry
Weforging’s CNC machined flange gears are applied across multiple industries that demand compact and efficient power transmission solutions:
Automotive Systems – Used in transmissions, differentials, and drive assemblies for stable torque delivery.
Wind Power Gearboxes – Provide accurate motion control and load transfer in planetary drives.
Industrial Machinery – Support motion systems, conveyors, and automation equipment with consistent precision.
Construction Equipment – Ensure high torque capacity and alignment stability in heavy-duty gear mechanisms.
Energy & Marine Systems – Facilitate reliable power transfer in turbines and propulsion systems.
Furthermore, Weforging offers customization to match specific torque requirements, operating speeds, and installation interfaces.
Quality and Testing
Every forged flange gear is thoroughly validated within Weforging’s advanced inspection framework. Dimensional accuracy is confirmed through high-precision CMM systems, while tooth contact and surface finish are optimized using advanced CNC machining techniques. Hardness and case depth are carefully adjusted during heat treatment to achieve ideal mechanical balance. In addition, ultrasonic and magnetic particle analysis confirm material uniformity and integrity. All products consistently meet or surpass ISO, DIN, and AGMA standards, demonstrating Weforging’s strong commitment to precision engineering and dependable performance.
Inquiry and Customization
Weforging provides custom flange gear solutions tailored to your specific engineering and performance needs. Our experienced team supports every stage—from design optimization and material selection to machining and testing—ensuring every product achieves superior torque efficiency and durability.
➡ Contact us today to request a quotation or technical consultation for OEM and industrial flange gear projects.
