Echt-Flex® Coupling
Combination of NES Straight Hubs
The straight hub boasts exceptionally high torsional stiffness.
All models are RoHS compliant.
Standard
| Capacity (N·m{kgf·m}) | Bore Diameter Range (mm) |
|---|---|
| 0.7 {0.07} to 300 {30.6} | φ4.0 to φ50 |
Features
High Torsional Stiffness
The straight hub features high torsional stiffness and excellent responsiveness for servomotor drives. Most suitable for precise control.
Low Moment of Inertia
Provides low inertia moment by employing light-weight and high-strength extra super duralumin for the hub and spacer.
No backlash
There is no backlash as all torque is transmitted by friction connections. Perfect for high-precision
Easy Installation
Both sides of the hub are assembled to ensure concentricity. Can be connected with the shaft by simply tightening one clamp bolt on each side.
Environmentally Friendly
This product is compliant with the RoHS directive, as well as hazardous chemical substance regulations JIG, PFOS and 15 SVHCs.
Extensive Lineup
Can meet the wide variety of needs with 56 combinations of low inertia and straight hubs, supporting 3252 patterns of different shaft bore diameters.
Structure
Note:
The exploded view above illustrates a combination of straight hubs, and the photo shows a combination of a low inertia hub and a straight hub.
Reference Number System
*Please indicate the smaller bore diameter first.
Standard Shaft Bore Diameter List
| Size | Standard Shaft Bore Dia. (mm) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NES07 | 4 | 5 | 6 | |||||||||||
| NES15 | 4 | 5 | 6 | 6.35 | 7 | 8 | ||||||||
| NES20 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | ||||||
| NES30 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | ||
| NES50 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | ||
| NES70 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | |
| NES100 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 |
| NES250 | 10 | 11 | 12 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | |
| NES800 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | ||
| NES1300 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | ||||||
| NES2000 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 | |||||
| NES3000 | 35 | 38 | 40 | 42 | 45 | 48 | 50 | |||||||
