Gear Couplings
WGP Crowned Gear Coupling with Brake Disc
WGP Crowned Gear Coupling with Brake Disc with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
WGP is a crowned gear coupling with a brake-disc arrangement. Its model table combines paired bore data, torque, speed, D0/D/D1/D2 dimensions, disc-related N and C dimensions, inertia and mass. The coupling and disc should be reviewed together for braking torque, disc clearance, lubrication and guarding. The published model tables contain 25 size rows and provide torque values spanning 0.71–160 N·m, permissible-speed values spanning 1200–4000 r/min, bore values spanning 12–260 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Crowned gear coupling with brake-disc interface
- Disc and coupling dimensions are listed in one model table
- Inertia and mass support braking and acceleration checks
- The model data provides torque values spanning 0.71–160 N·m, permissible-speed values spanning 1200–4000 r/min, bore values spanning 12–260 mm for a traceable preliminary comparison.
Typical Selection Context
- Brake-equipped motor, hoist and conveyor drives
- High-torque lines where a brake disc is mounted at the coupling
Product Gallery
Technical Specification
The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.
| Model | Nominal torque Tn kN·m | Permissible speed [n] r/min | Bore diameter d dz mm | Bore length L Y J₁ Z₁ | D₀ | D | D₁ | D₂ | B | N | C | C₁ | C₂ | Mass moment of inertia kg·m² | Mass kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WGP1 | 0.71 | 4000 | 12~42 | 32~112 | 315 | 122 | 98 | 60 | 58 | 38 | 3/30 | 19/29 | 12/18 | 0.008 | 5.7 |
| WGP2 | 1.25 | 4000 | 22~56 | 52~112 | 315 | 150 | 118 | 77 | 68 | 38 | 3/20 | 23/29 | 16 | 0.02 | 10 |
| WGP3 | 2.5 | 3550 | 22~63 | 52~142 | 355 | 170 | 140 | 90 | 80 | 49 | 3/33 | 23/36 | 16/25 | 0.05 | 17 |
| WGP4 | 4.5 | 2500 | 30~80 | 82~172 | 400 | 200 | 160 | 112 | 90 | 45 | 3/13 | 29/41 | 17 | 0.1 | 26 |
| WGP5 | 7.1 | 2500 | 30~90 | 82~172 | 450 500 | 225 | 180 | 128 | 100 | 45 | 3/23 | 29/41 | 19 | 0.17 | 35 |
| WGP6 | 10 | 2000 | 32~100 | 82~212 | 500 560 630 | 245 | 200 | 145 | 112 | 44 | 5/35 | 28/48 | 20 | 0.3 | 52 |
| WGP7 | 14 | 1700 | 32~110 | 82~212 | 560 630 710 | 272 | 230 | 160 | 122 | 44 | 5/45 | 38/48 | 20 | 0.5 | 68 |
| WGP8 | 20 | 1700 | 55~125 | 107~212 | 560 630 710 | 290 | 245 | 176 | 136 | 44 | 5/29 | 38/48 | 20/34 | 0.7 | 80 |
| WGP9 | 25 | 1600 | 65~140 | 107~252 | 630 710 800 | 315 | 265 | 190 | 140 | 58 | 5 | 38/53 | 28/38 | 1 | 107 |
| WGP10 | 40 | 1600 | 75~160 | 132~302 | 630 710 800 | 355 | 300 | 225 | 165 | 58 | 5/28 | 43/63 | 20/38 | 1.8 | 160 |
| WGP11 | 56 | 1400 | 80~180 | 167~302 | 710 800 900 | 412 | 345 | 256 | 180 | 58 | 8/15 | 51/66 | 32 | 3.7 | 215 |
| WGP12 | 80 | 1400 | 120~200 | 167~352 | 710 800 900 | 440 | 375 | 288 | 207 | 58 | 8 | 51/76 | 32/45 | 6.4 | 305 |
| WGP13 | 112 | 1400 | 140~220 | 202~352 | 800 900 | 490 | 425 | 320 | 235 | 58 | 8 | 56/76 | 32/38 | 11 | 395 |
| WGP14 | 160 | 1200 | 160~260 | 242~410 | 900 1000 | 545 | 462 | 362 | 265 | 65 | 10 | 68/78 | 10/32 | 18 | 530 |
| Brake-disc diameter D₀ | T | K | S | D₃ max I | D₃ max II | Mass moment of inertia kg·m² I | Mass moment of inertia kg·m² II | Mass kg I | Mass kg II |
|---|---|---|---|---|---|---|---|---|---|
| 315 | 15 | 10 | 42 | 180 | 155 | 0.116 | 0.11 | 8.5 | 6.7 |
| 355 | 15 | 10 | 54 | 200 | 175 | 0.192 | 0.178 | 11.4 | 9.9 |
| 400 | 15 | 14 | 54 | 255 | 230 | 0.32 | 0.29 | 15.2 | 12.4 |
| 450 | 15 | 16 | 54 | 305 | 280 | 0.55 | 0.46 | 19.7 | 15.6 |
| 500 | 15 | 18 | 54 | 325 | 295 | 0.83 | 0.71 | 25 | 20 |
| 560 | 15 | 18 | 54 | 350 | 320 | 1.28 | 1.13 | 30.7 | 25.6 |
| 630 | 15 | 20 | 54 | 400 | 360 | 2.06 | 1.83 | 38.8 | 33 |
| 710 | 15 | 20 | 54 | 480 | 420 | 3.32 | 2.9 | 46.5 | 39.4 |
| 800 | 15 | 24 | 70 | 540 | 500 | 5.87 | 4.8 | 67.8 | 52.7 |
| 900 | 15 | 24 | 70 | 600 | 560 | 9.3 | 7.9 | 86.6 | 70.3 |
| 1000 | 20 | 30 | 80 | 620 | 560 | 17.4 | 15.7 | 128.8 | 115.1 |
Engineering Context
This model is best understood from its own construction: Crowned gear coupling with brake-disc interface; Disc and coupling dimensions are listed in one model table; Inertia and mass support braking and acceleration 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 braking torque, disc diameter/width, speed and coupling torque
- Match bore, disc clearance, lubrication and guard arrangement
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
What is special about WGP selection?
The brake-disc interface adds disc geometry, braking torque and clearance to the normal gear-coupling review.
Should disc inertia be considered?
Yes. Coupling and disc inertia affect acceleration and braking response and should be confirmed together.
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.





