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DFC OD95×L126 Aluminum Jaw Spider Coupling – 250N·m Heavy-Duty Zero Backlash Flexible Shaft Coupler for Large Servo Motor & Industrial Power Transmission
Model Number
Check below, custom
| Outer Diameter (mm) | Length (mm) | Bore Range (mm) |
|---|---|---|
| 14 | 22 | 3 – 7 |
| 20 | 25 | 4 – 10 |
| 20 | 30 | 4 – 10 |
| 25 | 30 | 4 – 12 |
| 25 | 34 | 4 – 12 |
| 30 | 35 | 5 – 16 |
| 30 | 40 | 5 – 16 |
| 35 | 50 | 6 – 19 |
| 40 | 50 | 8 – 24 |
| 40 | 55 | 8 – 24 |
| 40 | 66 | 8 – 24 |
| 45 | 55 | 8 – 25 |
| 45 | 66 | 8 – 25 |
| 55 | 78 | 12 – 30 |
| 65 | 90 | 14 – 40 |
| 80 | 114 | 19 – 45 |
| 95 | 126 | 22 – 55 |
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
DFC OD95×L126 Aluminum Jaw Spider Coupling – 250N·m Heavy-Duty Zero Backlash Flexible Shaft Coupler for Large Servo Motor & Industrial Power Transmission
The DFC OD95×L126 aluminum jaw spider coupling is a heavy-duty, high-torque flexible shaft coupler engineered for large servo motors, high-power industrial drives, and heavy-duty automation equipment. With a substantial 95 mm outer diameter, 126 mm overall length, and an impressive 250 N·m rated torque capacity, this DFC spider coupling handles the most demanding power transmission tasks while maintaining the zero-backlash precision required for modern motion control systems.
Machined from aerospace-grade aluminum alloy on 5-axis CNC centers with H6 bore precision, the DFC OD95 jaw coupling combines lightweight strength with exceptional torsional rigidity. The German-imported polyurethane spider dampens shock, absorbs vibration, and compensates for significant misalignment – all while delivering zero rotary clearance for exact positioning in high-inertia reversing applications.
With a bore range from 22 mm to 55 mm and the ability to machine different bore sizes on each hub, this coupling seamlessly connects large servo motors to gearboxes, ball screws, pumps, and compressors. As a source factory manufacturer, Apexcoupling.com provides the DFC heavy-duty aluminum coupling with full customization, abundant inventory, and fast global delivery.
DFC OD95×L126 Specifications
| Parameter | Specification |
|---|---|
| Model | DFC (Jaw / Spider Type) |
| Body Material | High-Strength Aluminum Alloy (Aerospace Grade) |
| Spider Material | German-Imported Polyurethane (PU) |
| Surface Treatment | Anodized Oxidation (Anti-Corrosion) |
| Outer Diameter (D) | 95 mm |
| Overall Length (L) | 126 mm |
| Bore Range (d) | 22 mm – 55 mm (Optional, Both Ends) |
| Rated Torque (Tn) | 250 N·m |
| Bore Tolerance | H6 Precision |
| Fixing Method | Keyway + Clamping Screw (12.9 Grade) |
| Backlash | Zero |
| Compensation | Radial, Angular, Axial |
| Protection Class | IP65 |
| Standard | ISO Certified |
| Weight | ≈ 1.5–2.5 kg |
Both ends can have different bore sizes (e.g., 25 mm × 40 mm, 30 mm × 55 mm). Non-standard OD, length, and bore combinations fully supported.
Key Features – DFC OD95×L126 Heavy-Duty Jaw Spider Coupling
✅ 250 N·m High Torque Capacity
With nearly 100× the torque of compact DFC models, the OD95×L126 coupling is built for heavy-duty servo motors, large stepper drives, and industrial power transmission where substantial torque must be delivered without compromise.
With nearly 100× the torque of compact DFC models, the OD95×L126 coupling is built for heavy-duty servo motors, large stepper drives, and industrial power transmission where substantial torque must be delivered without compromise.
✅ Zero Backlash for Precision Motion Control
The precision-machined H6 bores and tight-fitting polyurethane spider maintain absolute zero rotary clearance, ensuring accurate positioning and repeatability in large CNC machines, robotic systems, and high-inertia automation equipment.
The precision-machined H6 bores and tight-fitting polyurethane spider maintain absolute zero rotary clearance, ensuring accurate positioning and repeatability in large CNC machines, robotic systems, and high-inertia automation equipment.
✅ Large Bore Range – 22 mm to 55 mm
Accommodates large motor shafts, gearbox input shafts, and heavy ball screws up to 55 mm diameter. Both hubs can be customized with different bore sizes to connect mismatched shafts in a single coupling.
Accommodates large motor shafts, gearbox input shafts, and heavy ball screws up to 55 mm diameter. Both hubs can be customized with different bore sizes to connect mismatched shafts in a single coupling.
✅ Aerospace-Grade Aluminum Alloy Construction
Machined from high-strength aluminum on 5-axis CNC equipment for superior strength-to-weight ratio and perfect concentricity. The anodized oxidation surface extends service life by 30% and resists corrosion in industrial environments.
Machined from high-strength aluminum on 5-axis CNC equipment for superior strength-to-weight ratio and perfect concentricity. The anodized oxidation surface extends service life by 30% and resists corrosion in industrial environments.
✅ German-Imported Polyurethane Spider
The 梅花型 (jaw-type) PU insert delivers exceptional wear resistance, oil resistance, and electrical insulation. Rated for 140°C continuous operation, it effectively absorbs shock loads and protects expensive motor bearings from vibration damage.
The 梅花型 (jaw-type) PU insert delivers exceptional wear resistance, oil resistance, and electrical insulation. Rated for 140°C continuous operation, it effectively absorbs shock loads and protects expensive motor bearings from vibration damage.
✅ H6 Precision Bore – Secure, Slip-Free Fit
H6 tolerance machining guarantees a precise, interference-quality fit on large shafts. 3D chamfered edges come standard on all OD25+ models, ensuring safe handling and protecting shaft surfaces during installation.
H6 tolerance machining guarantees a precise, interference-quality fit on large shafts. 3D chamfered edges come standard on all OD25+ models, ensuring safe handling and protecting shaft surfaces during installation.
✅ Multi-Directional Misalignment Compensation
Simultaneously compensates for radial, angular, and axial shaft deviations, reducing bearing stress and extending the life of connected servo motors, gearboxes, and driven machinery.
Simultaneously compensates for radial, angular, and axial shaft deviations, reducing bearing stress and extending the life of connected servo motors, gearboxes, and driven machinery.
✅ Bi-Directional Rotation – No Hysteresis
Delivers identical torsional characteristics in both forward and reverse directions, with no wind-up or hysteresis – critical for large servo systems performing rapid indexing and positioning cycles.
Delivers identical torsional characteristics in both forward and reverse directions, with no wind-up or hysteresis – critical for large servo systems performing rapid indexing and positioning cycles.
✅ Split Clamping Design with 12.9-Grade Screws
The heavy-duty clamping screw design allows for secure, tool-tightened installation without special equipment. The 12.9-grade alloy steel screws provide maximum clamping force and vibration resistance.
The heavy-duty clamping screw design allows for secure, tool-tightened installation without special equipment. The 12.9-grade alloy steel screws provide maximum clamping force and vibration resistance.
✅ Mixed Bore Customization
Connect different shaft diameters in one coupling. Popular industrial combinations include 25 mm × 35 mm, 30 mm × 40 mm, and 40 mm × 55 mm. Provide your exact sizes for precision CNC machining.
Connect different shaft diameters in one coupling. Popular industrial combinations include 25 mm × 35 mm, 30 mm × 40 mm, and 40 mm × 55 mm. Provide your exact sizes for precision CNC machining.
Material & Manufacturing Excellence
| Component | Material / Process | Advantage |
|---|---|---|
| Hub Body | High-strength aluminum alloy, 5-axis CNC machined | High strength-to-weight ratio, perfect concentricity, low inertia |
| Surface Finish | Anodized oxidation | 30% longer life, superior corrosion & scratch resistance |
| Spider (Jaw Insert) | German-imported polyurethane (PU) | 140°C rated, oil-resistant, excellent shock & vibration damping |
| Bore Machining | H6 precision, single-setup turning | Zero backlash, secure fit on large shafts up to 55 mm |
| Fixing Screws | 12.9 grade alloy steel | Maximum clamping force, anti-loosening under heavy torque |
| Edge Treatment | 3D chamfer standard | Safe handling, no sharp burrs on large-diameter hubs |
Every DFC OD95 jaw coupling undergoes 100% dimensional inspection – bore diameter, concentricity, surface finish, spider hardness, and torque capacity verification – ensuring ISO-compliant quality before shipment.
Applications – Heavy-Duty Industrial & Large Servo Systems
The DFC OD95×L126 spider coupling is engineered for heavy-duty power transmission and large precision motion systems:
- ⚙️ Large Servo Motors – High-power servo-to-gearbox, servo-to-ball screw connections
- 🔩 CNC Machine Tools – Heavy milling machines, lathes, machining centers, spindle drives
- 🏭 Heavy Automation Equipment – Large robotic arms, gantry systems, linear motor drives
- 🔄 Industrial Pumps & Compressors – Large rotary pumps, screw compressors, hydraulic units
- ⚡ Power Generation & Test Rigs – Generator drives, dynamometers, heavy test benches
- 🚜 Construction & Mining Machinery – Auxiliary drives, conveyor systems, material handling
- 🏗️ Material Handling Systems – Heavy conveyors, stackers, winches, crane drives
- 📦 Packaging & Textile Machinery – Large-format printing presses, heavy-duty packaging lines
How to Select the Right DFC Coupling
Step 1: Confirm Installation Envelope
Choose the outer diameter (D) and length (L) that fit your mechanical space.
Example: OD95 mm × L126 mm for heavy-duty servo and industrial motor applications.
Choose the outer diameter (D) and length (L) that fit your mechanical space.
Example: OD95 mm × L126 mm for heavy-duty servo and industrial motor applications.
Step 2: Verify Bore Range
Ensure both shaft diameters fall within the available bore range.
Example: OD95×L126 supports bores from 22 mm to 55 mm on either end.
Ensure both shaft diameters fall within the available bore range.
Example: OD95×L126 supports bores from 22 mm to 55 mm on either end.
Step 3: Specify Different Bores (if needed)
Note each hub bore when ordering.
Example: “Bore 25 mm × 40 mm” or “30 mm × 55 mm”.
Note each hub bore when ordering.
Example: “Bore 25 mm × 40 mm” or “30 mm × 55 mm”.
Step 4: Check Torque Requirements
Confirm your peak and continuous torque are within the coupling rating.
Example: 250 N·m rated torque for OD95×L126, suitable for large servo and industrial drives.
Confirm your peak and continuous torque are within the coupling rating.
Example: 250 N·m rated torque for OD95×L126, suitable for large servo and industrial drives.
Need help? Send us your motor model, shaft diameters, and application details – we recommend the exact DFC coupling size within 24 hours.
Customization Process – How to Order
| Step | Process | Description |
|---|---|---|
| 01 | Custom Inquiry | Contact us with your coupling requirements |
| 02 | Requirement Review | We review bore sizes, torque, speed, and environment |
| 03 | Quotation | Competitive factory-direct pricing delivered |
| 04 | Order & Payment | Confirm order and complete payment |
| 05 | Sample Confirmation | First article inspection for custom dimensions |
| 06 | Batch Production | CNC machining with strict quality control |
| 07 | Delivery | Export packaging and punctual global shipping |
| 08 | Feedback | Post-delivery support and satisfaction follow-up |
For custom orders, please provide:
- Shaft diameters for both ends (can be different, 22–55 mm range)
- Required outer diameter and overall length
- Application torque and operating speed
- Operating environment (temperature, oil, dust, chemical exposure)
- Target quantity and delivery schedule
Why Choose Apexcoupling.com?
| Advantage | Detail |
|---|---|
| 🏭 Source Factory | Direct manufacturer of precision couplings and heavy-duty power transmission components |
| ⚙️ 5-Axis CNC Machining | Single-setup production ensures perfect concentricity and H6 bore precision on large diameters |
| 📦 Large Inventory | Standard DFC sizes from OD14 to OD95+ in stock for immediate dispatch |
| 🔧 Full Customization | Non-standard OD, length, bore combinations, and special materials available |
| 🧪 Strict Quality Control | 100% dimensional inspection, torque verification, ISO-certified processes |
| 🌐 Global Export | Professional packaging with full documentation (CO, inspection reports) |
| 💰 Competitive Pricing | Factory-direct pricing with volume discounts on large orders |
| 🚀 Fast Response | Technical support and quotations within 24 hours |
📞 Request Your DFC OD95×L126 Quote Today
In Stock: DFC OD14×L22, DFC OD20×L25, DFC OD25×L30, DFC OD30×L35, DFC OD40×L50, DFC OD95×L126, and complete DFC series
Whether you need a standard DFC heavy-duty aluminum jaw spider coupling or a fully customized large-bore shaft coupler, Apexcoupling.com delivers precision-engineered power transmission solutions with fast global delivery.
👉 [Request a Quote / Send Inquiry]
📧 Email: ella@apexcoupling.com
📱 WhatsApp: +86 13437856962
🌐 Website: www.apexcoupling.com
📧 Email: ella@apexcoupling.com
📱 WhatsApp: +86 13437856962
🌐 Website: www.apexcoupling.com
FAQ – DFC OD95×L126 Heavy-Duty Aluminum Jaw Spider Coupling
Q1: What is the torque capacity and bore range of the DFC OD95×L126?
A: The DFC OD95×L126 delivers a rated torque of 250 N·m with bore diameters from 22 mm to 55 mm on either hub. It is designed for heavy-duty servo motors and large industrial drives.
A: The DFC OD95×L126 delivers a rated torque of 250 N·m with bore diameters from 22 mm to 55 mm on either hub. It is designed for heavy-duty servo motors and large industrial drives.
Q2: Can the two hubs have different bore sizes?
A: Yes. Both hubs can be machined with different bore diameters within the 22–55 mm range. For example, you can order a 30 mm × 40 mm combination to connect a large servo motor to a gearbox with different shaft sizes.
A: Yes. Both hubs can be machined with different bore diameters within the 22–55 mm range. For example, you can order a 30 mm × 40 mm combination to connect a large servo motor to a gearbox with different shaft sizes.
Q3: What makes this coupling suitable for heavy servo motors?
A: The DFC OD95 coupling combines 250 N·m torque capacity with zero backlash and H6 precision bores, making it ideal for high-inertia servo systems where both power and positional accuracy are critical.
A: The DFC OD95 coupling combines 250 N·m torque capacity with zero backlash and H6 precision bores, making it ideal for high-inertia servo systems where both power and positional accuracy are critical.
Q4: What is the maximum operating temperature?
A: The German-imported polyurethane spider is rated for continuous operation up to 140°C. The anodized aluminum hub performs well in industrial environments with elevated ambient temperatures.
A: The German-imported polyurethane spider is rated for continuous operation up to 140°C. The anodized aluminum hub performs well in industrial environments with elevated ambient temperatures.
Q5: How does the DFC coupling protect connected equipment?
A: The flexible PU spider absorbs shock, vibration, and misalignment (radial, angular, and axial), significantly reducing stress on motor bearings, gearbox seals, and driven machinery – extending overall system life.
A: The flexible PU spider absorbs shock, vibration, and misalignment (radial, angular, and axial), significantly reducing stress on motor bearings, gearbox seals, and driven machinery – extending overall system life.
Q6: Is the OD95×L126 suitable for high-speed applications?
A: Yes. The lightweight aluminum construction and precision balance make it suitable for high rotational speeds typical of large servo and spindle applications. Dynamic balancing services are available upon request for ultra-high-speed operation.
A: Yes. The lightweight aluminum construction and precision balance make it suitable for high rotational speeds typical of large servo and spindle applications. Dynamic balancing services are available upon request for ultra-high-speed operation.
Q7: What surface treatment does the DFC coupling have?
A: The aluminum hub receives a professional anodized oxidation treatment that provides 30% longer service life than untreated aluminum, with excellent resistance to corrosion, wear, and industrial contaminants.
A: The aluminum hub receives a professional anodized oxidation treatment that provides 30% longer service life than untreated aluminum, with excellent resistance to corrosion, wear, and industrial contaminants.
Q8: Do you offer even larger sizes for industrial machinery?
A: Yes. The DFC series extends well beyond OD95 mm, with custom-engineered jaw couplings available for torque requirements exceeding 1,000 N·m. Contact us with your specifications.
A: Yes. The DFC series extends well beyond OD95 mm, with custom-engineered jaw couplings available for torque requirements exceeding 1,000 N·m. Contact us with your specifications.
large servo motor coupling, CNC spindle drive coupler, heavy industrial power transmission, pump motor connector, automation machinery shaft joint
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22mm bore spider coupling, 55mm shaft coupler, high torque jaw coupling, large motor shaft connector, industrial flexible coupling 250Nm
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