What a Drum Gear Coupling Does
A drum gear coupling transmits torque through a crowned external gear meshing with an internal gear sleeve. The crowning lets the coupling take up angular, radial and axial misalignment between two shafts without overloading the teeth. GICL is the representative drum-gear (crowned) family used across heavy drives.
Types and Variants
- GICL / GIICL — basic type and intermediate-shaft type
- GICLZ / GIICLZ — with brake wheel / extended intermediate shaft
- Related families: GCCD, JMIJ (diaphragm), SWC / SWP (cardan)
- Size numbers typically 1–30, mapped to nominal torque and bore
Where They Are Used
Steel rolling mills, mine hoists, construction machinery, wind-power drivetrains, marine propulsion and heavy machine-tool main drives.
Typical Specification Range
| Item | Typical range |
|---|---|
| Nominal torque Tn | 0.4–4500 kN·m by size |
| Max speed | decreases with size |
| Bore diameter d | 12–1000 mm by size |
| Angular misalignment | up to ~1.5° |
| Radial / axial misalignment | per design |
Selection Notes
Fix torque and speed first, then verify bore and misalignment, finally check installation space and whether a brake wheel is needed.
Ask for a Quote
Send torque, speed, shaft diameter and misalignment. We return the GICL/GIICL size and a quotation.
Related: gear hobbing machines, hydrostatic spindles, oil supply systems.
