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Stainless Steel CNC Machining Turning Polishing
Custom
Introducing our high-quality stainless steel CNC machining services! Precision and durability are our top priorities, ensuring the perfect finish for your products.
minimum order
1 piece
Quantity
$1.50 - $1.50 / piece
Introducing our high-quality stainless steel CNC machining services! Precision and durability are our top priorities, ensuring the perfect finish for your products.
| Key Attributes | |
| Machining Capabilities | CNC Machining Processes:Broaching, Drilling, Etching/Chemical Machining, Laser Machining, Milling, Turning, Wire EDM, Rapid Prototyping |
| Materials Supported | Aluminum, Brass, Bronze, Copper, Hardened Metals, Stainless Steel, Steel Alloys, Plastic |
| Micro-Machining or Not | Micro Machining |
| Key Processes | CNC Milling, Turning, Drilling |
| Tolerance Standards | Industry-standard precision |
| Surface Treatments | Anodizing, Plasting, Polishing, etc. |
| Applications | Control Systems, Automotive Components |
| Place of Origin | Guangdong, China |
| Model Number | CUSTOM |
| Service Type | Customized OEM/ODM Manufacturing |
| Drawing Formats | PDF, CAD, IGES, STEP |
| Delivery Time | 7-30 Days |
| MOQ | 10 pcs |
· Product Overview
Introducing the YITECH Precision Rotary Hub Adapter — a high-rigidity, CNC-turned mechanical interface engineered for CNC spindles, rotary encoders, fluidic connectors, and modular drive systems.
This robust component features:
- Large-diameter flange shoulder (Ø40 mm standard) for secure mounting, sealing, or load distribution
- Stepped shaft with internal bore (Ø12 mm × 25 mm deep) for shaft insertion, cable routing, or fluid passage
- Precision knurled grip section (360° diamond pattern, 0.3 mm depth) for reliable manual handling and torque transfer
- Fully machined from solid A6061-T6 aluminum or 304 stainless steel — zero warpage, ±0.005 mm dimensional control
- Mirror-finish turning (Ra ≤ 0.4 μm) on critical surfaces — ensuring smooth rotation and minimal wear
Unlike stamped or cast hubs, this part delivers kinematic-level concentricity (runout ≤ 0.008 mm) and vibration-resistant performance — making it ideal for high-speed rotation, precision sensing, or repeatable docking applications.
Perfect for engineers building compact, high-performance rotary subsystems where misalignment = failure.
· Core Specifications
| Parameter | Specification |
|---|---|
| Material Options | • A6061-T6 Aluminum (lightweight, non-magnetic, anodizable) • AISI 304 Stainless Steel (corrosion-resistant, higher strength) • AISI 4140 Alloy Steel (for high-torque/high-temp applications) |
| Surface Finish | Turned satin (standard, Ra ≤ 0.4 μm); optional: Black anodize (Type II), PVD TiN, or passivated SS |
| Overall Dimensions | Ø40 mm (flange) × Ø16 mm (shaft) × L55 mm (standard); customizable: Ø25–80 mm × Ø8–30 mm × L30–120 mm |
| Bore | Internal through-bore: Ø12 mm × 25 mm deep (standard); optional: blind bore, stepped bore, or threaded bore (M10/M12) |
| Knurling | Diamond pattern (ISO 1302: Ra 3.2 μm), 0.3 mm depth, full 360° — for grip & torque transmission |
| Tolerances | • Flange OD: ±0.005 mm • Shaft OD: ±0.003 mm • Bore concentricity to OD: ≤ 0.008 mm TIR • Length: ±0.02 mm |
| Manufacturing Process | Precision CNC turning (lathe) → knurling (dedicated roller tool) → grinding (critical diameters) → deburring → cleaning → surface treatment |
| Weight | ~95 g (Al, standard); ~175 g (304 SS) |
| Max Load Capacity | Axial load: 2,200 N; Torque capacity: 8.5 N·m (knurled grip, hand-tightened) |
| Operating Temp. | -40°C to +120°C (Al); -60°C to +250°C (304 SS) |
| Compliance | ISO 9001, RoHS, REACH, FDA-compliant (for medical-grade variants) |
· Application Scenarios
This hub excels in high-precision rotary and interfacing systems:
- CNC Tooling & Spindle Adapters
→ Mounting interface for collets, ER holders, or probe heads
→ Flange provides stable reference plane for tool length setting - Rotary Encoders & Sensors
→ Direct-mount hub for optical/magnetic encoders on motors or actuators
→ Precise concentricity ensures zero signal jitter - Fluidic & Pneumatic Systems
→ Quick-connect coupling body for air/water lines (bore = flow path)
→ Knurled grip enables tool-free assembly in field service - Medical Devices
→ Drive hub for surgical robots, centrifuges, or lab automation
→ Non-magnetic (Al) or biocompatible (304 SS) options available - Robotics & Collaborative Arms
→ End-effector interface for grippers, cameras, or force sensors
→ Modular design allows rapid tool swapping
💡 Why engineers choose this hub:
- Knurled grip = no tools needed — speeds up maintenance & field service
- Flange + bore concentricity = eliminates runout-induced vibration
- Solid billet construction = no hidden porosity or weak points
- Customizable in days — not weeks like traditional machining
· Production Process Introduction
· Packaging and Shipping Methods
- Standard Packaging: 1 hub per anti-static PE bag; 50 hubs per cardboard box with EPE dividers.
- Bulk Options: 200–5,000+ units per pallet (custom tray inserts available).
- Shipping Methods:
- 📦 Express (DHL/FedEx/UPS): 3–7 business days (global)
- ✈️ Air Freight: 5–10 days (orders ≥ 200 pcs)
- 🚢 Sea Freight: 20–35 days (container loads)
- White-Label Services:
- Laser engraving (brand logo, part #, QR code)
- Branded retail boxes (for direct sales)
- Kitted solutions (e.g., “Encoder Mount Kit”: 10 hubs + M5 screws + O-rings + alignment target)
· Frequently Asked Questions (FAQ)
Q1: What is the MOQ?
A:
A:
- Standard hub (Ø40×16×55 mm, Al, knurled, bore Ø12 mm): 200 pcs
- Custom size/bore/thread/material: 500 pcs
- Samples: 3–5 pcs free for verified B2B customers (shipping paid)
Q2: What’s the lead time?
A:
A:
- In-stock designs: 5–7 working days after payment
- Custom CAD: 7–10 working days (includes design review & FAI)
- Rush service (≤5 days): Available for +15% fee
Q3: Can I customize the knurl pattern (e.g., straight, diagonal), add external threads, integrate O-ring grooves, or switch to titanium?
A: Yes — full customization is our core strength:
A: Yes — full customization is our core strength:
- Knurl type: Diamond (standard), straight-line, or custom pitch/depth
- Threads: External M10/M12/M14 (for nut retention) or internal tapped bore
- Features: O-ring grooves (ISO 3601), coolant holes, magnetic inserts, or wrench flats
- Materials: A6061-T6 (standard), 304/316 SS, 4140 steel, or Grade 2 titanium
- Finishes: Brushed (standard), black anodize, clear, PVD TiN, or dry-film lubricant
👉 Send a sketch, STEP file, or description — we’ll provide a 3D model, tolerance analysis, and quote within 2 hours.
Q4: Is the knurling durable? Will it wear down after repeated handling?
A: Standard knurling is permanent (formed by cold-rolling, not etching). For high-cycle applications (>10,000 insertions), we offer:
A: Standard knurling is permanent (formed by cold-rolling, not etching). For high-cycle applications (>10,000 insertions), we offer:
- Hardened knurl (Al: T6 + surface hardening, HV 180→220)
- Carbide-insert knurl ring (replaceable, press-fit)
- Laser-textured grip (micro-pyramid pattern, wear-resistant)
Just specify your expected cycle count — we’ll optimize the solution.
Q5: Do you provide GD&T drawings or mounting templates?
A: Yes — for every order, we provide:
A: Yes — for every order, we provide:
- Free downloadable CAD files (STEP, IGES, DXF)
- PDF GD&T drawing (ASME Y14.5 compliant)
- BOM-ready part numbering (SolidWorks/Onshape compatible)
- Functional test report (runout, torque, load data) upon request
· Why Choose YITECH?
✅ Rotary Precision Engineered — Runout ≤ 0.008 mm, not “good enough”
✅ User-Centric Design — Knurled grip = faster assembly, no tools needed
✅ Modular by Default — Flange + bore + knurl = ready for integration
✅ Global Scale, Local Speed — From concept to metal in under 10 days
✅ User-Centric Design — Knurled grip = faster assembly, no tools needed
✅ Modular by Default — Flange + bore + knurl = ready for integration
✅ Global Scale, Local Speed — From concept to metal in under 10 days
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