SWC-BF Standard Flex Flange Type Universal Cardan Shaft
The SWC-BF flex flange universal cardan shaft series is a premium solution engineered for applications requiring a flexible connection that can accommodate axial movement and angular misalignment. As the agent for EVER-POWER, GBC offers unparalleled product quality, local expertise, and dedicated customer service to industries across the continent. Our SWC-BF couplings are designed to meet the rigorous demands of Australian heavy industry, providing a reliable and durable solution for your most challenging power transmission needs.
Product Specifications
The SWC-BF series is distinguished by its ingenious telescopic spline design, which allows for dynamic length changes, simplifying installation and compensating for operational shifts. This makes it a preferred choice for a multitude of applications where a robust, yet adaptable, connection is essential. Below, you will find the comprehensive technical specifications for our SWC-BF range, empowering you to select the perfect model for your project.

| Type | Gyration diameter (mm) | Nominal torque (KN·m) | Axes fold angle (°) | Weary torque (KN·m) | Flex quantity (mm) | Size (mm) | Rotating inertia | Weight (kg) | |||||||||||
| Lmin | D1 (js11) (mm) | D2 (H7) (mm) | D3 (mm) | Lm (mm) | n-d | k | t | b (h9) | g | (kg·m²) Lmin | Increase (kg·m²/100mm) | Lmin | Increase (kg/100mm) | ||||||
| SWCI80BF | 180 | 12.5 | 6.3 | ≤25 | 100 | 810 | 155 | 105 | 114 | 110 | 8-17 | 17 | - | - | 0.267 | 0.007 | 80 | 2.8 | |
| SWC225BF | 225 | 40 | 20 | ≤15 | 140 | 920 | 196 | 135 | 152 | 120 | 8-17 | 20 | 32 | 9 | 0.788 | 0.0234 | 138 | 4.9 | |
| SWC250BF | 250 | 63 | 31.5 | 1035 | 218 | 150 | 168 | 140 | 8-19 | 25 | 40 | 12.5 | 1.455 | 0.0277 | 196 | 5.3 | |||
| SWC285BF | 285 | 90 | 45 | 1190 | 245 | 170 | 194 | 160 | 8-21 | 27 | 40 | 15 | 2.873 | 0.051 | 295 | 6.3 | |||
| SWC315BF | 315 | 125 | 63 | 1315 | 280 | 185 | 219 | 180 | 10-23 | 32 | 40 | 15 | 5.094 | 0.0795 | 428 | 8 | |||
| SWC350BF | 350 | 180 | 90 | 150 | 1410 | 310 | 210 | 267 | 194 | 10-23 | 35 | 50 | 16 | 9.195 | 0.2219 | 632 | 15 | ||
| SWC390BF | 390 | 250 | 125 | 170 | 1590 | 345 | 235 | 267 | 215 | 10-25 | 40 | 70 | 18 | 16.62 | 0.2219 | 817 | 15 | ||
| SWC440BF | 440 | 355 | 180 | 190 | 1875 | 390 | 255 | 325 | 260 | 16-28 | 42 | 80 | 20 | 28.24 | 0.4744 | 1290 | 21.7 | ||
| SWC490BF | 490 | 500 | 250 | 190 | 1985 | 435 | 275 | 325 | 270 | 16-31 | 47 | 90 | 22.5 | 46.33 | 0.4744 | 1631 | 21.7 | ||
| SWC550BF | 550 | 710 | 355 | 240 | 2300 | 492 | 320 | 426 | 305 | 16-31 | 50 | 100 | 22.5 | 86.98 | 1.357 | 2567 | 34 | ||
| SWC620BF | 620 | 1000 | 500 | 240 | 2500 | 555 | 380 | 426 | 340 | 10-38 | 55 | 100 | 25 | 147.5 | 1.357 | 3267 | 34 | ||
Overview
A flex flange universal cardan shaft is a mechanical component designed to transmit power between two shafts that have both angular and axial misalignment. Its key feature is a sliding spline joint that allows it to change length, which is essential for systems where the distance between the connected shafts varies. This design simplifies installation and reduces stress on bearings and seals, extending equipment lifespan.
Applications
The versatility and robustness of the SWC-BF series make it an indispensable component in a wide array of demanding applications throughout Australia.
- Mining & Quarrying: Essential for conveyors and crushers in Western Australia and Queensland, where the telescopic feature simplifies installation and handles heavy, variable loads.
- Steel & Metal Processing: Crucial for connecting drive motors to rolls in steel mills, with its ability to absorb axial movements being vital for precise operations.
- Port & Crane Machinery: Provides the robust, yet flexible connection needed for hoisting and gantry drives in ports, accommodating dynamic shifts during heavy lifting.
- Heavy-Duty Agriculture: The telescopic design is perfect for large tractors and irrigation systems, accommodating changing distances and angles during fieldwork in Australian farmlands.
- Cement Manufacturing: Handles high-impact loads and thermal expansion in cement kilns and ball mills, ensuring consistent power transmission in high-heat environments.
- Pulp & Paper Industry: Delivers reliable power in the drive systems of paper machines and pulp mixers, designed to withstand damp and demanding conditions.
- Marine & Shipbuilding: A reliable link in the main propulsion and auxiliary systems of ships, particularly in confined engine rooms, where its robust yet adaptable nature is key.
- Power Generation: Drives cooling tower fans and other auxiliary equipment in power plants, where its high torque capacity ensures reliable performance.
- Tunnel Boring: The strong and space-efficient design makes it a critical component for the drive systems of tunnel boring machines, handling immense torque and misalignment.
- Water Treatment: Offers a durable and low-maintenance solution for large industrial pumps and mixers, handling continuous operation and minor shaft movements.

Related GBC Products & Solutions
To provide a complete power transmission solution, GBC offers a wide array of products that complement our SWC-BF universal couplings.
- Industrial Gearboxes: Our robust gearboxes are engineered for efficiency and durability in the most demanding environments, providing a perfect match for our cardan shafts.
- Telescopic Drive Shafts: For applications that require a similar telescopic function but a different connection type, explore our extensive range of drive shafts.
- Sprockets and Chains: We supply a full line of sprockets and chains to handle any roller chain application, ensuring a full-service solution for your power transmission needs.
Contact GBC today for a quote or to speak with one of our expert engineers about the SWC-BF series and how it can enhance your business operations in Australia.

The SWC-BF flex flange universal cardan shaft series is a premium solution engineered for applications requiring a flexible connection that can accommodate axial movement and angular misalignment. As the agent for EVER-POWER, GBC offers unparalleled product quality, local expertise, and dedicated customer service to industries across the continent. Our SWC-BF couplings are designed to meet the rigorous demands of Australian heavy industry, providing a reliable and durable solution for your most challenging power transmission needs.






