Gear Hub
描述
Forged Aluminum Gear Hub: Six-Lobe Drivetrain Hub
The forged aluminum gear hub is a disc-shaped drive part in a heavy-motorcycle drivetrain. It is a six-lobe flower-shaped disc with a round central boss and six recesses around it that can be machined into bolt holes or cush-drive rubber seats. Parts like this are used in rear-wheel drives, clutches or transmission mechanisms, transmitting torque while absorbing shock.
Al Forge Tech (AFT) has produced heavy-motorcycle transmission hubs and handlebar clamps in 6061-T6, 2014-T6 and 7075-T6, including forging, machining and anodizing. The six-lobe shape is closed-die hot forged in one operation so grain flow runs continuously through each lobe and the central boss; after heat treatment, the center bore, bolt holes and mating faces are turned and CNC-machined.
主要功能
- Six-lobe shape and central boss forged in one operation
- Available in 6061-T6, 2014-T6, 7075-T6 and similar grades
- Center bore, bolt holes and mating faces turned and CNC-machined
- Anodizing for appearance and corrosion resistance
Forged Aluminum Gear Hub Specifications and Manufacturing Capability
| 商品 | 詳細 |
|---|---|
| 產品類別 | 機車零配件 |
| 申請 | Heavy-motorcycle rear-wheel drives, clutches and transmission mechanisms |
| 主要過程 | 閉式熱鍛造（熱鍛造壓機 600T–8,000T） |
| 材質 | Per customer specification; similar parts produced in 6061-T6, 2014-T6 and 7075-T6 |
| 熱處理 | 根據合金與強度要求而提供的內部 T4 處理方案（8 套）及 T6 人工老化處理方案（7 套） |
| 二次加工 | CNC 加工（52 台加工中心、30 台銑床）、銑削、振動磨削 |
| 表面處理 | 按要求進行陽極氧化（包括硬陽極氧化）、噴射粉碎、電子塗層或塗漆。 |
| 檢查 | Zeiss CMM (4 units), hardness testers, spectrometer, fluorescent penetrant inspection line |
| 尺寸與公差 | 按客戶提供2D/3D圖紙 |
| 品質管理系統 | IATF 16949:2016、ISO 14001:2015 |
Forged Aluminum Gear Hub Manufacturing Process
- 繪圖評估與 DFM我們確認合金、載荷方向和關鍵尺寸，然後執行 QForm 模擬，以預測金屬流動和缺陷風險。.
- 設計與製造銑刀組數（例如，阻斷刀和完成刀）視零件的複雜程度而定，銑刀輪廓則使用便攜式3D掃描儀進行檢查。.
- 熱鍛造600T–8,000T 熱鍛造壓 Presses 的閉式成形技術創造出持續的晶粒流，並遵循零件的輪廓。.
- 熱處理T4 溶液處理和 T6 人工老化處理均在廠內進行，參數由合金和強度要求設定。.
- CNC加工 以及完成孔、螺紋和接合面均經過機械加工，然後根據需要進行拋光、振動拋光、噴丸或陽極氧化處理。.
- 檢查與運輸尺寸、硬度及化學成分均通過 CMM、硬度測試儀及分光光度儀進行驗證，且所有批次的產品均遵照 IATF 16949 的標準進行追蹤。.
常見問題
Which aluminum alloys are used for gear hubs, and how are they chosen?
AFT’s heavy-motorcycle transmission hubs and handlebar clamps have used 6061-T6, 2014-T6 and 7075-T6. 6061-T6 balances machinability and corrosion resistance; 2014-T6 offers higher strength for heavier loads; 7075-T6 is a high-strength alloy for designs demanding maximum strength and lightness, but needs anodizing for corrosion resistance. The choice depends on load, corrosion requirement and cost.
How is bolt-hole indexing ensured on the hub?
Bolt-hole indexing and pitch circle diameter determine how the hub assembles to sprockets or wheel hubs. After heat treatment, AFT machines all bolt holes in one CNC setup so indexing shares one datum, then measures pitch circle diameter, indexing and hole size on Zeiss CMM.
How does a forged aluminum Forged Aluminum Gear Hub compare with casting or machining from billet?
Forging shapes aluminum in the solid state under pressure, so the grain flow follows the part contour and the porosity and shrinkage common in castings are avoided. Compared with machining from solid billet, a near-net-shape forging removes less material and shortens machining time. For a Forged Aluminum Gear Hub under repeated loads, forging balances strength and weight; the final choice still depends on design loads and volume.
Is heat treatment for the Forged Aluminum Gear Hub done in-house?
Yes. Al Forge Tech operates 8 T4 solution treatment units and 7 T6 artificial aging units on site, so the Forged Aluminum Gear Hub can be solution treated, quenched and aged in the same facility before machining and inspection. Keeping heat treatment in-house removes inter-plant transport, reduces lead-time risk and keeps lot traceability within one quality system. Parameters are set according to the alloy grade and your specification.
Can the Forged Aluminum Gear Hub be anodized or given other surface finishes?
Yes. Al Forge Tech offers anodizing (including hard anodizing), shot blasting, vibratory finishing, e-coating and painting, plus pickling and ultrasonic washing lines to clean parts after machining. Please note the finish type and film thickness on the drawing so machining allowances and cosmetic standards for the Forged Aluminum Gear Hub can be evaluated together.
Request a Quote for the Forged Aluminum Gear Hub
Developing a new Forged Aluminum Gear Hub or converting an existing part to aluminum forging? Send us your 3D/2D drawings, alloy and temper, annual volume and finishing requirements. Our engineering team will reply with a feasibility review, die plan and quotation.
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