Flexible Couplings
DL Multi-Jaw Coupling
DL Multi-Jaw Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
DL is a multi-jaw coupling whose model table is built around jaw dimensions A, D, B and F, screw quantity, permitted bore, bore length, nominal torque, speed, inertia and mass. The screw pattern and multi-jaw geometry are as important as torque: they determine the clamp, maintenance and envelope requirements of the connection. The published model tables contain 11 size rows and provide torque values spanning 50–8000 N·m, permissible-speed values spanning 900–5000 r/min, bore values spanning 12–160 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Multi-jaw geometry with a defined screw pattern
- Wide bore and bore-length rows across DL1–DL11
- Inertia and mass supplied with torque and speed
- The model data provides torque values spanning 50–8000 N·m, permissible-speed values spanning 900–5000 r/min, bore values spanning 12–160 mm for a traceable preliminary comparison.
Typical Selection Context
- Motor, gearbox and process drives using a bolted multi-jaw interface
- Compact flexible connections where screw access can be maintained
Technical Specification
The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.
| Size | Main dimensions A | Main dimensions D | Main dimensions B | Main dimensions F | Number of screws Md×L | Permissible bore d dz | Bore length L Y J₁ Z₁ type | Nominal torque Tn N·m | Permissible speed [n] r/min | Mass moment of inertia kg·m² | Mass kg |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DL1 | 96 | 42 | 28 | 4 | 6 M10×60 | 12～25 | 30～62 | 50 | 5000 | 0.001 | 1.9 |
| DL2 | 118 | 55 | 32 | 5 | 6 M12×70 | 16～32 | 30～82 | 80 | 4000 | 0.0031 | 3.9 |
| DL3 | 142 | 68 | 46 | 7 | 6 M14×90 | 20～40 | 38～112 | 160 | 3150 | 0.0089 | 8.0 |
| DL4 | 182 | 92 | 52 | 9 | 6 M16×100 | 22～55 | 38～112 | 280 | 2500 | 0.026 | 14.2 |
| DL5 | 235 | 122 | 62 | 12 | 6 M20×120 | 25～71 | 44～142 | 560 | 2000 | 0.095 | 31.4 |
| DL6 | 258 | 128 | 68 | 12 | 6 M20×130 | 28～75 | 44～142 | 800 | 1800 | 0.130 | 35.6 |
| DL7 | 282 | 148 | 78 | 13.5 | 8 M24×160 | 35～85 | 60～172 | 1250 | 1600 | 0.287 | 58.4 |
| DL8 | 372 | 190 | 100 | 15 | 8 M30×196 | 40～110 | 84～210 | 2500 | 1250 | 0.952 | 117.1 |
| DL9 | 420 | 220 | 115 | 15 | 8 M36×220 | 45～130 | 84～210 | 3500 | 1120 | 1.981 | 171.8 |
| DL10 | 465 | 242 | 130 | 15 | 8 M42×260 | 50～150 | 84～252 | 5600 | 1000 | 3.606 | 252.9 |
| DL11 | 520 | 260 | 150 | 20 | 8 M56×320 | 60～160 | 107～302 | 8000 | 900 | 7.48 | 386.7 |
Engineering Context
This model is best understood from its own construction: Multi-jaw geometry with a defined screw pattern; Wide bore and bore-length rows across DL1–DL11; Inertia and mass supplied with torque and speed 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
- Confirm jaw dimensions and screw grade/length from the drawing
- Match bore, torque, speed, inertia, mass and maintenance clearance
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
What is distinctive about DL?
Its multi-jaw and screw arrangement controls the connection, so the bolt pattern must be checked with the bore.
Why are A, D, B and F all needed?
They describe the radial and axial envelope around the jaws and fasteners.
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.
