Tsubaki Disk Coupling
Echt-Flex® Coupling
This non-backlash, lube-free coupling has high torsional stiffness, maximizing the benefit of servomotors. Based on finite element analysis, the disk is optimally designed to ensure reliable torque transmission, while absorbing misalignment smoothly.
All models are RoHS compliant.
Product Lineup
Small-size, Precision: NES Series (made of extra super duralumin)
Combination of NES straight hubs
The straight hub boasts exceptionally high torsional stiffness.
Combination of NES low inertia hubs
The unique stepped hub design delivers even lower inertia.
Combination of NES low inertia and straight hubs
This model combines a low inertia hub and a straight hub.
Middle-Size: NER Series
NER Spacer Type
NER Series enables higher capacity and downsizing through a newly developed disc and optimized bolts.
NER Long Spacer Type
Long Spacer Type of NER Series Echt-Flex Couplings. Capable of accommmodating hub face distances up to 6000mm. *Made-to-order product
Middle-Size: NEF Series
NEF Taper-Lock Series
With the specially designed tapered hub, meets the allowable torque for all standard shaft bore diameters.
NEF Clamp Method
Can be installed to the shaft with just a single bolt for each hub. The friction coupling eliminates backlash.
NEF Key Connection
In addition to plain bored items, a wide range of finished bore products with keyways are available in stock.
NEF Long Spacer Type
Functions as a floating shaft when there is some distance between devices. Capable of allowing large eccentricity depending on the spacer length.
Large-Size: NEH Series
NEH Spacer Type
This large-size series can be used up to 176,000N・m{18,000kgf・m}.
Standard
| Capacity (N·m {kgf·m}) | Bore Diameter Range (mm) |
|---|---|
| 0.7{0.07} to 176400{18000} | φ4.0 to φ289 |
Spacer Type and Single Type
| Spacer Type |  |
Two disks are embedded in this coupling, allowing for absorption of misalignment from any direction including angular and parallel misalignment, and axial displacement. Suitable for a wide range of applications. |
|---|---|---|
| Single Type |  |
With a single disk, absorbs angle misalignment and axial displacement. As this type cannot absorb parallel misalignment, it is appropriate for applications where precise centering is available, such as for NC machine tools. |
