Bore fields
X indicates a Ø12 stock bore on each side in the reference designation. Provide required shaft diameters, keyways and engagement lengths.
Yuken Hydraulic accessories
GC Series Flexible Drive Couplings
Gear-type flexible couplings with steel hubs and a nylon sleeve for joining driving and driven shafts.
28S / 28Catalogue sizes
Steel hubsGeared hub construction
Nylon sleeveMatching toothed sleeve
Ø12 stock boreX bore reference
Function and model selection
GC couplings combine two steel geared hubs with a matching nylon sleeve. The full designation includes the pump-side bore and motor-side bore, which must be confirmed for the shafts being connected.
Letters refer to the manufacturer's dimensional drawing. The sheet does not provide a universal torque or speed rating, so do not select the coupling from bore size alone.
Use the catalogue alongside the details below, then send the complete model and application requirements for selection support.
Models and specifications
| Model reference | A (mm) | B (mm) | C (mm) | D (mm) | F (mm) | G (mm) |
|---|---|---|---|---|---|---|
| GC-28S-X-X-10 | 66 | 44 | 26 | 26 | 46 | 66 |
| GC-28-X-X-10 | 66 | 44 | 38 | 38 | 46 | 85 |
Source: Yuken accessories catalogue, Pub:03-2025, section starting at PDF page 44. Check the complete drawing and model designation before ordering.
Configuration and ordering
Drive-duty check
Send pump and motor models, power, speed and duty details so the coupling configuration can be confirmed.
Selection support
Share the complete requirement
Include the existing model and installation details for a replacement, or the required operating conditions for a new application.
- Complete model code and component photographs
- Required function and system operating conditions
- Mounting dimensions and connections
- Fluid, temperature and pressure where applicable
- Quantity and delivery location
Manufacturer catalogue
Open the GC Series Flexible Drive Couplings reference in the PDF hosted on Shree Hydraulics.
Enquire about GC Series Flexible Drive Couplings
Contact Shree Hydraulics in Belagavi for product selection and quotation enquiries across India.