Products Power Transmission Products

  • Echt-Flex® Coupling

Combination of NES Straight Hubs

This small disk coupling is ideal for small servomotor drives with the hub and spacer made of extra super duralumin.

The straight hub boasts exceptionally high torsional stiffness.

All models are RoHS compliant.

Combination of NES straight hubs

Standard

Capacity (N·m{kgf·m}) Bore Diameter Range (mm)
0.7 {0.07} to 300 {30.6} φ4.0 to φ50

1.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.

2.Structure

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.

3.Reference Number System

Reference Number System

*Please indicate the smaller bore diameter first.

4.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