2A12 Aluminum Alloy Precision Flange Outer Sleeve | Specialized Component for Industrial Equipment Transmission & Positioning

This product is a 2A12 aluminum alloy precision flange outer sleeve (Model: GZMJ-TYW-1C-B001-13-6-3), a key component for bearing/bushing installation, coaxial positioning, and support in industrial transmission systems, automation equipment, and heavy-duty machinery. Made from high-strength 2A12 aluminum alloy, the material undergoes solution aging treatment to enhance strength and fatigue resistance, then formed via integrated CNC turning, drilling, and boring processes, strictly adhering to drawing tolerance and geometric requirements. It is a critical part for ensuring equipment concentricity, assembly accuracy, and long-term operational stability.

Core Processes & Parameters

Application Industries: Industrial automation equipment, construction machinery transmission systems, aerospace tooling, precision machinery, rail transit equipment

Manufacturing Process: 2A12 aluminum alloy cutting → solution aging treatment → CNC precision turning (inner/outer diameters, end faces) → drilling and tapping → boring finishing → deburring and chamfering → anti-rust treatment

Machining Precision: Key dimensional tolerances are strictly controlled within ±0.01mm, with position and coaxiality errors ≤0.02mm. The inner hole surface roughness reaches Ra1.6, and the flange end face roughness is Ra3.2, fully meeting the drawing's H7 tolerance and geometric requirements

Core Production Equipment: CNC lathes, vertical machining centers, CNC drilling and tapping centers, aging furnaces, precision cleaning equipment

Material Performance: 2A12 aluminum alloy (LY12 standard), with tensile strength ≥420MPa and yield strength ≥270MPa after solution aging. It combines high strength, lightweight, corrosion resistance, and easy processability, suitable for high-speed and lightweight equipment conditions

Available Post-Processing: Solution aging heat treatment, deburring, sharp edge chamfering (C0.5/C1), surface polishing, anodizing/natural passivation, anti-rust oil treatment, custom engraving and marking

Lead Time: 5-7 days for samples, 7-15 days for small-to-medium batches; lead times for large orders can be negotiated based on production capacity

Key Product Advantages

High-Strength Lightweight Material: 2A12 aluminum alloy combines high strength and lightweight characteristics, reducing weight by about 40% compared to traditional steel parts while maintaining excellent strength and fatigue resistance, suitable for automation and aerospace tooling scenarios with weight requirements

Ultra-Precision Machining: Full-process CNC precision machining strictly controls the position of flange mounting holes, inner hole coaxiality, and end face perpendicularity, ensuring perfect assembly with bushings/bearings, and guaranteeing equipment transmission concentricity and positioning accuracy

Comprehensive Post-Processing Services: We provide full-process post-processing from heat treatment to surface protection, and can customize surface solutions such as anodizing and natural passivation according to customer needs to adapt to different corrosion resistance and appearance requirements

Customization Capability: We support custom processing according to drawings, and can optimize processing technology and tolerance solutions based on customer equipment working conditions to adapt to different models of industrial equipment and transmission systems

Stable Bulk Delivery: Mature production processes and quality control systems ensure stable delivery of large-volume orders, guaranteeing customer project schedules and supporting long-term supporting cooperation

Quality Control

Each flange outer sleeve undergoes strict full-process quality inspection, including dimensional tolerance testing, geometric tolerance testing, surface defect testing, and hardness testing, to ensure 100% compliance with drawing technical requirements and prevent defective products from leaving the factory.

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