Products Power Transmission Products

  • Echt-Flex® Coupling

NEF Clamp Method

Eliminates backlash through the friction coupling method. Easy to install by simply tightening a single bolt in each hub.

All models are RoHS compliant.

NEF Clamp Method

Standard

Capacity (N·m{kgf·m}) Bore Diameter Range (mm)
19.6{2} to 441{45} φ10 to φ55

Other Contents

Echt-Flex Coupling -- Assembly Procedure

Check out this easy to understand movie detailing the assembly procedure for Echt-Flex Couplings.

Echt-Flex Coupling -- Assembly Procedure -- Movie

1.Features

Easy Installation
Can be connected with the shaft by simply tightening a single bolt in each hub.
Compact
Using the clamping method, this series can reduce axial dimension, saving installation space.
Backlash-Free
All torque is transmitted by friction coupling to eliminate backlash. Perfect for high-precision positioning applications.
High Torsional Stiffness
The optimally designed disk based on finite element analysis boasts high torsional stiffness and excellent flexibility.

Electric Insulation type is also available. (Spacer type)

2.Structure

Structure

The above illustrations show the structure of a key connection type

3.Reference Number System

Reference Number System
  • Indicate the smaller bore diameter first
  • Indicate the plain bore (symbol "R") first

4.Standard Shaft Bore Diameter List

Size Standard Shaft Bore Dia. (mm)
NEF02 10 12 14 15 18 19 20 22 24 25
NEF04 12 14 15 16 17 19 20 22 24 25
NEF10 15 18 20 22 24 25 28 30 35
NEF18 19 22 24 25 28 30 32 35
NEF25 25 30 32 35 38 40 42
NEF45 30 35 38 40 42 45 50 55