Cardan Shafts
SWP-E Telescopic Double-Flange Long Cardan Shaft
SWP-E Telescopic Double-Flange Long Cardan Shaft with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
SWP-E is the telescopic double-flange long cardan shaft. Its two-flange arrangement makes the connection interface a defining feature, while the table supplies angle, length compensation, swing diameter, rated torque and fatigue torque. Use both flange drawings and the installed span when comparing this series. The published model tables contain 15 size rows and provide torque values spanning 16–1250 N·m, operating-angle values spanning 10 °. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Long telescopic shaft with double-flange connection
- Length compensation and operating angle are explicit values
- Two flange interfaces require coordinated pilot and bolt checks
- The model data provides torque values spanning 16–1250 N·m, operating-angle values spanning 10 ° for a traceable preliminary comparison.
Typical Selection Context
- Long double-flange drive lines in rolling and heavy process equipment
- Systems where telescopic travel is needed between two defined flanges
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 S (mm) | Dimensions (mm) | Mass moment of inertia (kg·m²) | Mass (kg) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lₘᵢₙ | D₁ (js11) | D₂ (H7) | D₃ | E | E₁ | b×h | h₁ | L₁ | n-d | Lₘᵢₙ | per 100 mm increase | Lₘᵢₙ | per 100 mm increase | ||||||
| SWP160E | 160 | 16 | 8 | ≤10 | 50 | 715 | 140 | 95 | 114 | 15 | 4 | 20×12 | 6 | 85 | 6-13 | 0.15 | 0.0059 | 49 | 2.1 |
| SWP180E | 180 | 20 | 10 | ≤10 | 60 | 800 | 155 | 105 | 121 | 15 | 4 | 24×14 | 7 | 95 | 6-15 | 0.25 | 0.0072 | 69 | 2.3 |
| SWP200E | 200 | 31.5 | 16 | ≤10 | 70 | 880 | 175 | 125 | 127 | 17 | 5 | 28×16 | 8 | 110 | 8-15 | 0.42 | 0.0114 | 81 | 3.4 |
| SWP225E | 225 | 40 | 20 | ≤10 | 76 | 1000 | 196 | 135 | 152 | 20 | 5 | 32×18 | 9 | 130 | 8-17 | 0.75 | 0.0290 | 108 | 6.6 |
| SWP250E | 250 | 63 | 31.5 | ≤10 | 80 | 1055 | 218 | 150 | 168 | 25 | 5 | 40×25 | 12.5 | 135 | 8-19 | 1.26 | 0.0407 | 179 | 7.3 |
| SWP285E | 285 | 90 | 45 | ≤10 | 100 | 1210 | 245 | 170 | 194 | 27 | 7 | 40×30 | 15 | 150 | 8-21 | 2.67 | 0.0702 | 285 | 9.4 |
| SWP315E | 315 | 140 | 63 | ≤10 | 110 | 1345 | 280 | 185 | 219 | 32 | 7 | 40×30 | 15 | 170 | 10-23 | 4.38 | 0.1144 | 375 | 12.0 |
| SWP350E | 350 | 180 | 90 | ≤10 | 120 | 1480 | 310 | 210 | 245 | 35 | 8 | 50×32 | 16 | 185 | 10-23 | 7.42 | 0.1663 | 488 | 13.6 |
| SWP390E | 390 | 250 | 112 | ≤10 | 120 | 1623 | 345 | 235 | 273 | 40 | 8 | 70×36 | 18 | 205 | 10-25 | 13.27 | 0.2695 | 662 | 18.0 |
| SWP435E | 435 | 355 | 160 | ≤10 | 150 | 1860 | 385 | 255 | 299 | 42 | 10 | 80×40 | 20 | 235 | 16-28 | 24.62 | 0.3645 | 1107 | 20.0 |
| SWP480E | 480 | 450 | 224 | ≤10 | 170 | 2122 | 425 | 275 | 351 | 47 | 12 | 90×45 | 22.5 | 265 | 16-31 | 42.81 | 0.7028 | 1302 | 28.0 |
| SWP550E | 550 | 710 | 315 | ≤10 | 190 | 2338 | 492 | 320 | 402 | 50 | 12 | 100×45 | 22.5 | 290 | 16-31 | 68.81 | 1.1842 | 2140 | 35.7 |
| SWP600E | 600 | 1000 | 500 | ≤10 | 210 | 2930 | 544 | 380 | 450 | 55 | 15 | 90×55 | 27.5 | 360 | 22-34 | 110.60 | 1.7159 | 2703 | 40.5 |
| SWP640E | 640 | 1250 | 630 | ≤10 | 230 | 3170 | 575 | 385 | 480 | 60 | 15 | 100×60 | 30 | 385 | 18-38 | 177.77 | 2.3080 | 3719 | 48.3 |
Engineering Context
This model is best understood from its own construction: Long telescopic shaft with double-flange connection; Length compensation and operating angle are explicit values; Two flange interfaces require coordinated pilot and bolt checks 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
- Provide both flange patterns, pilots, phasing and installed length
- Compare travel, angle, rated/fatigue torque, speed and swing diameter
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
What is the selection risk with a double flange?
Either flange can become the interface constraint; both patterns and pilots must match the equipment.
Why retain the fatigue torque value?
Long shafts in cyclic service need a separate repeated-load check, not only a peak torque check.
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.