CNC Machined Couplings Australia
We manufacture custom CNC machined shaft couplings — rigid, flexible, gear, disc, and Oldham designs. All materials — aluminium, steel, stainless, titanium. Keyways, splines, dynamic balancing. Quote in 2 business days.
Couplings We Manufacture
We machine couplings for industrial machinery, automotive powertrains, aerospace systems, and robotics. Every coupling is custom-engineered for your shaft sizes and torque requirements.
Rigid Shaft Couplings
Precision alignment for direct-coupled motors. No misalignment tolerance.
Flexible Jaw Couplings
Elastomeric jaw insert absorbs misalignment and vibration. Common for motor drive systems.
Gear Couplings
High-torque capable with crowned teeth. Tight concentricity for precision machinery.
Disc Couplings
Flexible metal disc design. High-speed capable, minimal runout.
Oldham Couplings
Misalignment tolerance without side loads. Used in precision equipment.
Universal Joint Couplings
Angle-tolerant design for misaligned shafts. Torque transmission at angles.
Magnetic Couplings
Shaft-mounted magnet cups for sealed or hazardous environments.
Custom Coupling Adapters
Non-standard shaft size interfaces. Custom bores and keyways.
Materials Available for Couplings
Coupling materials are selected for torque capacity, speed capability, and environment.
| Material | Grades | Best For |
|---|---|---|
| Aluminium | 6061-T6, 7075-T6 | Lightweight, low-speed, cost-effective |
| Steel | 4140, 4340 | High-torque, strength, standard industrial |
| Stainless Steel | 316, 17-4 PH | Corrosive environments, marine, food |
| Titanium | Grade 2, Grade 5 | Extreme weight reduction, aerospace |
| Polyurethane | Elastomer inserts | Vibration damping, flexible jaw design |
Industries We Serve
Industrial Machinery
Automotive & Powertrains
Aerospace & Defence
Robotics & Automation
Pump & Compressor Systems
Mining & Resources
Manufacturing Capabilities
Bore and Keyway Machining
Precision bores for shaft fit. Standard and custom keyways to DIN 6885 tolerances.
- ✓ Bore tolerance ±0.01mm
- ✓ DIN 6885 keyways
- ✓ Custom keyway profiles
- ✓ Tight concentricity
Dynamic Balancing
High-speed coupling balancing to ISO 1940 Grade 1.0. Essential for rotating equipment.
- ✓ ISO 1940 Grade 1.0
- ✓ Balancing to 1500+ RPM
- ✓ Field-balancing friendly
- ✓ Runout control
Spline and Profile Machining
Standard involute and custom spline profiles. CMM verification of all profiles.
- ✓ Involute spline cutting
- ✓ Custom profiles
- ✓ CMM inspection
- ✓ Fit tolerances per spec
Quality Assurance
- ✓CMM inspection of all bore and bore-to-bore concentricity
- ✓Dynamic balancing to ISO 1940 for high-speed couplings
- ✓Runout verification and control
- ✓Keyway profile inspection
- ✓First-piece inspection and approval
- ✓Material certificates on request
Lead Times & Quantities
Simple couplings ship within 5–7 days. Balanced or complex designs may take 10–15 business days.
Simple Rigid
5–7 days
Standard design, no balancing
With Balancing
10–15 days
High-speed or critical couplings
Custom Designs
12–20 days
Complex profiles or adapters
Coupling Machining FAQ
What types of couplings can you manufacture?
We machine all major coupling types: rigid (precision alignment for direct-coupled motors), flexible jaw (misalignment tolerance, vibration damping), gear (high-torque with tight concentricity), disc (high-speed capable), Oldham (no axial loads), and universal joint couplings. Custom adapter couplings are also available to interface non-standard shaft diameters.
What materials are best for high-torque couplings?
Steel 4140 and 4340 are standard for high-torque applications — they provide maximum strength at minimum weight. Aluminium is suitable for light-duty applications where weight is critical. Stainless steel 17-4 PH offers corrosion resistance with high strength. Material selection depends on torque load, speed, and environment.
Can you balance couplings for high-speed applications?
Yes. Couplings for applications above 1,500 RPM are dynamically balanced to ISO 1940 Grade 1.0 or better. Balancing adds precision to the manufacturing process and typically adds 2–3 days to lead time. Balancing is essential for vibration control in high-speed machinery.
What is the typical lead time for custom couplings?
Simple rigid couplings typically ship within 5–7 business days. Flexible and gear couplings with keyways and balancing may take 7–15 business days depending on complexity and whether balancing is required. Lead time is confirmed in your formal quote.
Can you manufacture couplings with keyways or splines?
Yes. We cut standard and custom keyways, splines, and involute profiles. Keyway tolerances can be held to DIN 6885 or ISO 2491 standards. Spline profiles are verified with precision CMM inspection.
Do you offer prototype coupling testing?
We can arrange prototype testing through our partners. High-speed balancing, run-in testing, and torque verification are available. Most customers find our single-off coupling manufacturing suitable for immediate assembly and testing on their equipment.
Get a Quote for Custom Couplings in 2 Business Days
Upload your coupling spec or drawing and receive a quote for precision, balanced couplings. All types, all materials.
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