Cardan Shafts
SWC-BF Telescopic Flanged Cardan Shaft
SWC-BF Telescopic Flanged Cardan Shaft with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
SWC-BF is the standard telescopic flanged cardan shaft in the SWC family. Its table combines swing diameter, rated torque, fatigue torque, operating angle and length compensation with flange dimensions; this makes it a practical candidate when the connected machines move relative to one another but retain a defined flange interface. The published model tables contain 11 size rows and provide torque values spanning 12.5–1000 N·m, operating-angle values spanning 15–25 °. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Telescopic cardan shaft with flanged ends
- Length compensation is listed alongside angle and torque
- Flange drilling and pilot dimensions are drawing-controlled
- The model data provides torque values spanning 12.5–1000 N·m, operating-angle values spanning 15–25 ° for a traceable preliminary comparison.
Typical Selection Context
- Flanged rolling and material-handling drives with relative movement
- Industrial lines where telescopic travel simplifies installation
Technical Specification
The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.
| Model | Swing diameter D (mm) | Rated torque Tn (kN·m) | Fatigue torque Tf (kN·m) | Operating angle β (°) | Length compensation Lₛ(mm) | Dimensions (mm) Lₘᵢₙ | Dimensions (mm) D₁ (js11) | Dimensions (mm) D₂ (H7) | Dimensions (mm) D₃ | Dimensions (mm) Lₘ | Dimensions (mm) n-d | Dimensions (mm) k | Dimensions (mm) t | Dimensions (mm) b (h9) | Dimensions (mm) g | Mass moment of inertia (kg·m²) Lₘᵢₙ | Mass moment of inertia (kg·m²) per 100 mm increase | Mass (kg) Lₘᵢₙ | Mass (kg) per 100 mm increase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SWC180BF | 180 | 12.5 | 6.3 | ≤25 | 100 | 810 | 155 | 105 | 114 | 110 | 8-17 | 17 | 5 | - | - | 0.267 | 0.0070 | 80 | 2.8 |
| SWC225BF | 225 | 40 | 20 | ≤15 | 140 | 920 | 196 | 135 | 152 | 120 | 8-17 | 20 | 5 | 32 | 9.0 | 0.788 | 0.0234 | 138 | 4.9 |
| SWC250BF | 250 | 63 | 31.5 | ≤15 | 140 | 1035 | 218 | 150 | 168 | 140 | 8-19 | 25 | 6 | 40 | 12.5 | 1.445 | 0.0277 | 196 | 5.3 |
| SWC285BF | 285 | 90 | 45 | ≤15 | 140 | 1190 | 245 | 170 | 194 | 160 | 8-21 | 27 | 7 | 40 | 15.0 | 2.873 | 0.0510 | 295 | 6.3 |
| SWC315BF | 315 | 125 | 63 | ≤15 | 140 | 1315 | 280 | 185 | 219 | 180 | 10-23 | 32 | 8 | 40 | 15.0 | 5.094 | 0.0795 | 428 | 8.0 |
| SWC350BF | 350 | 180 | 90 | ≤15 | 150 | 1410 | 310 | 210 | 267 | 194 | 10-23 | 35 | 8 | 50 | 16.0 | 9.195 | 0.2219 | 932 | 15.0 |
| SWC390BF | 390 | 250 | 125 | ≤15 | 170 | 1590 | 345 | 235 | 267 | 215 | 10-25 | 40 | 8 | 70 | 18.0 | 16.62 | 0.2219 | 817 | 15.0 |
| SWC440BF | 440 | 355 | 180 | ≤15 | 190 | 1875 | 390 | 255 | 325 | 260 | 16-28 | 42 | 10 | 80 | 20.0 | 28.24 | 0.4744 | 1290 | 21.7 |
| SWC490BF | 490 | 500 | 250 | ≤15 | 190 | 1985 | 435 | 275 | 325 | 270 | 16-31 | 47 | 12 | 90 | 22.5 | 46.33 | 0.4744 | 1631 | 21.7 |
| SWC550BF | 550 | 710 | 355 | ≤15 | 240 | 2300 | 492 | 320 | 426 | 305 | 16-31 | 50 | 12 | 100 | 22.5 | 86.98 | 1.3570 | 2567 | 34.0 |
| SWC620BF | 620 | 1000 | 500 | ≤15 | 240 | 2500 | 555 | 380 | 426 | 340 | 16-38 | 55 | 12 | 100 | 25.0 | 147.50 | 1.3570 | 3267 | 34.0 |
Engineering Context
This model is best understood from its own construction: Telescopic cardan shaft with flanged ends; Length compensation is listed alongside angle and torque; Flange drilling and pilot dimensions are drawing-controlled Industry selection practice checks torque and speed together with the movement, shaft interface, installation envelope and maintenance conditions allowed by that construction.
Technical Notes
Model symbols, units and empty or placeholder cells are shown as published.
Dimension letters must be interpreted with the relevant assembly drawing.
Published values support preliminary review and do not replace final engineering confirmation.
Assembly Drawing
Information Required for Selection
- Give the required installed length and telescopic movement
- Check angle, swing diameter, flange pattern, rated torque and fatigue torque
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
What does the telescopic feature solve?
It allows the installed shaft length to accommodate defined relative movement or assembly variation.
Can the BF shaft be chosen by torque only?
No. Length, angle, swing clearance and flange geometry are equally important.
Are the published values final ordering values?
No. They are preliminary engineering data; confirm the selected model, drawing, dimensions, materials, standard and suitability with RONGXING DRIVE.
Technical data is provided for preliminary selection. Confirm the final model, dimensions, materials, applicable standard and operating suitability with RONGXING DRIVE before quotation, manufacture or installation.
