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CNC Machining Stainless Steel Shaft Collar Turning Milling
Custom
Introducing our high-quality stainless steel parts! Made from durable materials, these parts are perfect for various applications and guaranteed to last a lifetime.
minimum order
1 piece
Quantity
$5.00 - $5.00 / piece
Introducing our high-quality stainless steel parts! Made from durable materials, these parts are perfect for various applications and guaranteed to last a lifetime.
| 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 Split Clamping Collar — a high-strength, CNC-machined mechanical fastener engineered for zero-backlash shaft locking in demanding rotational and linear systems.
This collar delivers:
- Radial clamping via split-body design — eliminates play, prevents slippage under shock/vibration
- Knurled set-screw inserts — maximizes grip on shafts (steel, aluminum, or hardened surfaces) without marring
- Solid 304/316 stainless steel or 6061-T6 aluminum billet construction — corrosion-resistant, non-magnetic, and dimensionally stable
- Bore tolerance: ±0.005 mm — ensures perfect fit on precision shafts (e.g., DIN 6885, ISO 286)
- Surface finish: Ra ≤ 0.2 μm (ground) — smooth inner bore reduces friction and wear
Unlike low-cost stamped or plastic collars (prone to deformation and slip), our collars are built for long-term reliability in high-cycle, high-torque environments — from surgical robots to factory automation lines.
Perfect for engineers who need repeatable, tool-free repositioning and zero axial drift in critical assemblies.
· Core Specifications
| Parameter | Specification |
|---|---|
| Material Options | • 304 Stainless Steel (standard: corrosion-resistant, non-magnetic) • 316 Stainless Steel (marine/chemical-grade, higher pitting resistance) • 6061-T6 Aluminum (lightweight, for non-corrosive, low-torque apps) |
| Surface Finish | Ground & polished (Ra ≤ 0.2 μm inner bore); outer surface: machined satin (Ra 0.4–0.8 μm) |
| Standard Sizes | Bore: Ø6 mm to Ø50 mm (in 1 mm increments) OD: Bore + 8 mm (e.g., Ø12×20 mm) Width: 10 mm, 15 mm, 20 mm (customizable) |
| Set Screws | • 1 or 2× M3/M4/M5 (standard) • Knurled insert (brass or hardened steel) for enhanced grip • Optional: Grub screw with nylon tip (for soft shafts) |
| Tolerances | • Bore diameter: ±0.005 mm • Concentricity (bore to OD): ≤ 0.01 mm TIR • Width: ±0.02 mm • Slit gap: 0.15–0.30 mm (optimized for clamping force) |
| Clamping Force | Up to 1,200 N (304 SS, M5 screw, 5 N·m torque) — verified via torque-test rig |
| Max RPM | 10,000 rpm (Ø12 mm, balanced) — dynamic balancing available upon request |
| Operating Temp. | -40°C to +250°C (304 SS); -40°C to +120°C (Al) |
| Compliance | ISO 9001, RoHS, REACH, FDA-compliant (USP Class VI for medical variants) |
· Application Scenarios
These collars are mission-critical in precision motion systems:
- Industrial Automation
→ Securing timing pulleys, encoder disks, and sprockets on servo motor shafts
→ Zero-backlash coupling for linear actuators and ball screws - Robotics & Drones
→ Mounting joint gears, harmonic drives, and torque sensors
→ Lightweight aluminum versions for UAV payload interfaces - Medical Devices
→ Fixing surgical instrument shafts, pump rotors, and diagnostic scanner components
→ Non-magnetic 316 SS for MRI-compatible equipment - Optics & Laser Systems
→ Positioning lens mounts, filter wheels, and galvo mirrors
→ Vibration-damped clamping for interferometry setups - Aerospace & Defense
→ Actuator linkages, antenna positioners, and avionics encoders
→ Passes MIL-STD-810H vibration/shock testing
💡 Why engineers choose YITECH collars:
- Split-body + knurled insert = true zero-backlash (unlike set-screw-only collars)
- Ground bore = minimal runout (< 0.01 mm) — critical for high-speed rotation
- Stainless steel = lifetime durability — no rust, no galling, even in humid environments
- Customizable in days — not weeks
· Production Process Introduction
· Packaging and Shipping Methods
- Standard Packaging: 1 collar per anti-static PE bag; 100 per EPE tray; 1,000 per cardboard box.
- Bulk Options: 5,000–50,000+ units per pallet (custom tray inserts available).
- Shipping Methods:
- 📦 Express (DHL/FedEx/UPS): 3–7 business days (global)
- ✈️ Air Freight: 5–10 days (orders ≥ 1,000 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., “Shaft Kit”: 10 collars + M4 screws + torque wrench guide)
· Frequently Asked Questions (FAQ)
Q1: What is the MOQ?
A:
A:
- Standard collar (e.g., Ø12×20 mm, 304 SS, 1×M4, knurled insert): 200 pcs
- Custom bore (non-standard size), dual screws, or material: 500 pcs
- Samples: 5–10 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 slit geometry (e.g., double-split, helical slit), add a second set-screw, integrate a keyway, or switch to titanium?
A: Yes — full customization is our strength:
A: Yes — full customization is our strength:
- Slit design: Single-split (standard), double-split (for higher clamping), helical (for torsional damping)
- Set screws: 1×, 2×, or 3× (angular spacing optimized for balance)
- Features: Keyway (DIN 6885), O-ring groove, magnetic insert, or weight-reduction pockets
- Materials: 304/316 SS (standard), 6061-T6 Al, Ti-6Al-4V (aerospace), or PEEK (chemical resistance)
- Finishes: Passivated (SS), black oxide, or dry-film lubricant
👉 Send a sketch, STEP file, or description — we’ll provide a 3D model, FEA clamping simulation, and quote within 2 hours.
Q4: Is the bore truly ground to ±0.005 mm? Can you certify it?
A: Yes — every batch undergoes CMM bore measurement (at 3 axial positions) and dial indicator runout test. We provide:
A: Yes — every batch undergoes CMM bore measurement (at 3 axial positions) and dial indicator runout test. We provide:
- Inspection report (PDF) with measured bore diameter, concentricity, and runout
- Optional: Full FAI (AS9102 format) for aerospace/medical customers
Q5: Do you support dynamic balancing or certification for high-RPM applications?
A: Yes — for orders ≥ 500 pcs, we offer:
A: Yes — for orders ≥ 500 pcs, we offer:
- Dynamic balancing (G2.5 grade, up to 20,000 rpm)
- Balancing certificate (ISO 1940-1)
- Vibration analysis report (optional)
· Why Choose YITECH?
✅ True Zero-Backlash Design — Split body + knurled insert = no slip, no drift
✅ Ground Bore Precision — Ra ≤ 0.2 μm ensures smooth rotation and long life
✅ No Tooling Costs — CNC turning means fast turnaround, no molds
✅ Trusted in Critical Systems — Used in FDA-cleared devices, robotic arms, and satellite mechanisms
✅ Ground Bore Precision — Ra ≤ 0.2 μm ensures smooth rotation and long life
✅ No Tooling Costs — CNC turning means fast turnaround, no molds
✅ Trusted in Critical Systems — Used in FDA-cleared devices, robotic arms, and satellite mechanisms
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