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DFCG Precision CNC Motor Jaw Coupling | Stainless Steel Flexible Plum Spider Coupling
Model Number
Check below, custom
D14-L22-Bore(3~6)
D20-L25-Bore(3~10)
D20-L30-Bore(3~10)
D25-L30-Bore(4~14)
D25-L34-Bore(4~14)
D30-L35-Bore(5~16)
D30-L40-Bore(5~16)
D35-L32-Bore(5~18)
D35-L50-Bore(5~19)
D40-L50-Bore(6~24)
D40-L55-Bore(6~24)
D40-L66-Bore(6~24)
D45-L55-Bore(8~25)
D45-L66-Bore(8~25)
D50-L55-Bore(8~25)
D55-L49-Bore(12~32)
D55-L78-Bore(12~32)
D65-L80-Bore(14~40)
D65-L90-Bore(14~40)
D80-L114-Bore(14~45)
D95-L126-Bore(14~45)
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
DFCG High-Precision CNC Motor Jaw Spider Flexible Coupling
Stainless Steel Zero-Backlash Plum Shaft Coupler for Servo Motors & CNC Automation
The DFCG Series CNC Motor Jaw Coupling is a precision-engineered flexible shaft coupler designed specifically for high-speed CNC machinery, servo motors, stepping motors, and automation drive systems. Constructed with durable stainless steel hubs and a high-damping polyurethane (PU) plum spider insert, this coupling offers excellent shock absorption, electric insulation, and precise misalignment compensation for radial, angular, and axial shaft offsets. Built to support operational speeds up to 5,000 RPM with zero rotational clearance, the DFCG series ensures smooth, accurate power transmission in critical motion control applications.
Key Advantages & Features
- High-Speed & High-Torque Performance: Rated for high-speed rotation up to 5,000 RPM and heavy torque transmission up to 2000 N·m, ideal for modern CNC drive units.
- Corrosion-Resistant Stainless Steel Hubs: Manufactured from premium stainless steel for enhanced durability, rust prevention, and long operational life in challenging factory environments.
- Zero-Backlash Jaw & Spider Design: High-precision jaw geometry eliminates rotational clearance, enabling reliable high-frequency forward and reverse positioning.
- Durable Polyurethane (PU) Elastomer: Absorbs transmission vibration and motor shock loads while insulating current and resisting oil, heat, and mechanical fatigue.
- Clamp Screw Fastening: Ensures balanced radial clamping pressure and high shaft concentricity without slipping or causing damage to precision motor shafts.
- ISO9001 Certified Quality: Manufactured under strict quality management systems to guarantee tight dimensional tolerances and consistent dynamic balance.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Product Name / Series | DFCG High-Precision CNC Motor Jaw Coupling |
| Hub Material | Stainless Steel |
| Elastomer Element Material | High-Grade Polyurethane (PU) Plum Spider |
| Structure Type | Flexible Jaw / Spider Plum Shaft Structure (Zero Backlash) |
| Maximum Speed Rating | 5,000 RPM |
| Rated Torque Handling | Up to 2,000 N·m (1,475.12 lb·ft) |
| Outer Diameter Range (OD) | 20 mm – 65 mm |
| Overall Length Range (L) | 30 mm – 90 mm |
| Bore Diameter Range (d1, d2) | 3 mm – 40 mm (Supports metric & inch shaft diameters) |
| Quality Certification | ISO9001 Certified, 1-Year Limited Warranty |
DFCG Standard Model Dimensions & Specifications
| Model | Bore Range d1, d2 (mm) | OD (mm) | L (mm) | LF (mm) | LP (mm) | F (mm) | Screw (M) |
|---|---|---|---|---|---|---|---|
| DFCG-20*30 | 3, 4, 5, 6, 6.35, 7, 8, 9, 10 | 20 | 30 | 19.1 | 8.6 | 5.4 | M3 |
| DFCG-25*34 | 4, 5, 6, 6.35, 7, 8, 9, 10, 11, 12 | 25 | 34 | 22.5 | 11.6 | 5.6 | M4 |
| DFCG-30*35 | 5, 6, 6.35, 7, 8, 9, 10, 11, 12, 12.7, 14, 15, 16 | 30 | 35 | 22.5 | 10.9 | 5.9 | M4 |
| DFCG-35*50 | 5, 6, 6.35, 7, 8, 9, 10, 11, 12, 12.7, 14, 15, 16, 17, 18, 19 | 35 | 50 | 30.0 | 11.5 | 6.5 | M5 |
| DFCG-40*55 | 6, 8, 9, 10, 11, 12, 12.7, 14, 15, 16, 17, 18, 19, 20, 22, 24 | 40 | 55 | 33.6 | 13.7 | 7.2 | M5 |
| DFCG-55*78 | 12, 12.7, 14, 15, 16, 17, 18, 19, 20, 22, 24, 25, 28, 30, 32 | 55 | 78 | 46.2 | 16.1 | 10.3 | M6 |
| DFCG-65*90 | 14, 15, 16, 17, 18, 19, 20, 22, 24, 25, 28, 30, 32, 35, 38, 40 | 65 | 90 | 52.9 | 16.7 | 11.9 | M8 |
Applications & Machinery Compatibility
The DFCG high-speed CNC jaw coupling is an essential motion transmission component across automation and precision equipment, including:
- CNC & Machine Tools: CNC milling centers, engraving machines, lathes, and high-speed spindles.
- Precision Motion Control: Servo motors, stepper motors, encoders, and linear motion positioning systems.
- Automated Production Lines: Pick-and-place robots, packaging machinery, electronic assembly lines, and conveyor drives.
- Industrial Equipment: Machinery repair shops, building material processing, agricultural equipment, and printing machinery.
Custom Sizing & OEM/ODM Support
At ApexCoupling, we provide full custom machining and OEM/ODM manufacturing according to your specific machinery requirements.
Custom Options Include:
- Custom metric and inch inner shaft bore diameters (d1 and d2 combinations).
- DIN / JIS standard keyway machining.
- Custom spider element hardness levels (PU or Hytrel material).
- Private logo laser marking, custom surface finish, and special packaging.
To request a fast quotation, please specify your required DFCG model size, bore combination (d1 x d2), motor speed/torque requirements, and order quantity.
How to Order / Get a Fast Quote
Looking for reliable DFCG CNC motor jaw couplings or OEM custom flexible plum couplers? Contact our engineering sales team today!
- Email: ella@apexcoupling.com
- WhatsApp / WeChat: +86 13437856962
- Website: www.apexcoupling.com
- MOQ: 1 Piece (Sample orders, batch orders, and bulk OEM supplies supported)
high speed stainless steel jaw coupling, zero backlash servo motor coupling, PU element flexible spider shaft coupling, OEM precision CNC shaft connector
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DFCG jaw coupling, CNC motor flexible coupling, plum shaft spider coupler
