Gear Couplings
GCLD Crowned Gear Coupling
GCLD Crowned Gear Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
GCLD is a crowned gear coupling with a model table that includes nominal torque, speed, bore, bore length, grease quantity, mass and inertia. The grease quantity is a practical selection detail: installation must leave room for filling and sealing the tooth space. Compare the compact dimensional rows with the actual shaft ends. The published model tables contain 20 size rows and provide torque values spanning 1.12–50 N·m, permissible-speed values spanning 2100–4000 r/min, bore values spanning 22–200 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-tooth coupling with a stated grease quantity
- Bore and bore-length choices by model
- Mass and inertia support drive acceleration review
- The model data provides torque values spanning 1.12–50 N·m, permissible-speed values spanning 2100–4000 r/min, bore values spanning 22–200 mm for a traceable preliminary comparison.
Typical Selection Context
- Gear-unit and mill drive connections requiring a greased tooth coupling
- Installations where lubricant filling and sealing access can be arranged
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 | Bore length L Y J₁ Z₁ | Grease quantity mL | Mass kg | Mass moment of inertia kg·m² |
|---|---|---|---|---|---|---|---|
| GCLD1 | 1.12 | 4000 | 22~56 | 38~112 | 107 | 9.6 | 0.0118 |
| GCLD2 | 1.18 | 4000 | 38~65 | 60~142 | 137 | 16.4 | 0.0215 |
| GCLD3 | 3.15 | 4000 | 40~75 | 84~142 | 201 | 22.4 | 0.0475 |
| GCLD4 | 5 | 4000 | 45~90 | 84~172 | 238 | 35.6 | 0.095 |
| GCLD5 | 7.1 | 3750 | 50~105 | 84~212 | 298 | 53.9 | 0.168 |
| GCLD6 | 10 | 3300 | 55~115 | 84~212 | 465 | 67.5 | 0.268 |
| GCLD7 | 16 | 3000 | 60~135 | 107~252 | 561 | 106.7 | 0.528 |
| GCLD8 | 22.4 | 2650 | 65~150 | 107~252 | 734 | 123 | 0.813 |
| GCLD9 | 35.5 | 2350 | 70~175 | 107~302 | 956 | 212 | 1.770 |
| GCLD10 | 50 | 2100 | 75~200 | 107~352 | 1320 | 319 | 3.423 |
| Model | D | D₁ | D₂ | C | C₁ | A | A₁ | B | B₁ |
|---|---|---|---|---|---|---|---|---|---|
| GCLD1 | 127 | 95 | 75 | 27 | 6 | 43 | 22 | 66 | 45 |
| GCLD2 | 149 | 116 | 90 | 26.5/33 | 6.5 | 49.5 | 24.5 | 70 | 49 |
| GCLD3 | 167 | 134 | 105 | 33 | 7 | 53.5 | 27.5 | 80 | 54 |
| GCLD4 | 187 | 153 | 125 | 33.5/38 | 7.5 | 54 | 28 | 81 | 55 |
| GCLD5 | 204 | 170 | 140 | 37.5/43.5 | 7.5 | 60 | 30 | 89 | 59 |
| GCLD6 | 230 | 186 | 155 | 43.5 | 8.5 | 68.5 | 33.5 | 106 | 71 |
| GCLD7 | 256 | 212 | 180 | 48 | 9 | 73.5 | 34.5 | 112 | 73 |
| GCLD8 | 287 | 239 | 200 | 40.5/48 | 8.5 | 75 | 39 | 118 | 82 |
| GCLD9 | 325 | 276 | 235 | 49.5/58 | 9.5 | 87.5 | 40.5 | 132 | 85 |
| GCLD10 | 362 | 313 | 270 | 65/68 | 11 | 98.5 | 44.5 | 149 | 95 |
Engineering Context
This model is best understood from its own construction: Crowned-tooth coupling with a stated grease quantity; Bore and bore-length choices by model; Mass and inertia support drive acceleration review 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 bore, length, torque, speed and grease quantity
- Allow for seal, filling, guard and maintenance access around the sleeve
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
Why is grease quantity listed for GCLD?
The tooth space needs the specified lubricant amount and a serviceable sealing arrangement.
Can the grease quantity be changed during selection?
Use the published row as a preliminary reference and confirm the final lubrication instruction.
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.