EIDE  (+34) 937 146 511


Nil-Union elastic coupling models O and L

Nil-Union elastic coupling models O and L


The elastic coupling Nil-Union Model O and L, emerge as crucial solutions to address misalignment problems in electric motors and other industrial applications..

Their innovative design, ease of maintenance and adaptability make them key allies in ensuring efficient and vibration-free operation of mechanical and electrical systems..


What is the Nil-Union elastic coupling models O and L?


The Nil-Union elastic coupling models O and L is a mechanical device designed to connect two shafts allowing a degree of flexibility.

These couplings are used to transmit torque between components, such as an engine and a host machine, while absorbing vibrations and compensating for misalignments between the connected shafts.

Misalignment: The second most frequent source of vibration

Misalignment between shafts is the second most common cause of vibration, second only to unbalance. In this scenario, the L model, with its longer crown wheel, presents itself as the ideal choice for dealing with alignment problems between a host machine and an electric motor.

Characteristics of model L:

The main distinguishing feature of the L-model is its extended crown, specifically designed to address alignment challenges. This feature makes it a versatile and efficient solution, especially when misalignment presents itself as an obstacle in operation.

Ease of maintenance

An additional advantage is the ease of disassembly by means of a puller. This feature simplifies maintenance work and allows quick access for adjustments or replacements when necessary.

Various applications

Nil-Union Flexible Couplings models O and L are not only effective in the connection between receiving machines and electric motors, but also find applications in clutches, brakes and any system that requires the assembly of two aligned shafts.

Types of Misalignment

Misalignment can manifest itself in three different ways, and it is crucial to understand them in order to effectively address the problems.

  • Parallel or radial misalignment: Occurs when the centre lines of the axes are parallel but separated.
  • Angular or axial misalignment: Occurs due to the angle formed between the centre lines in a plane in space.
  • Combined misalignment: The most common situation, where parallel and angular deviations are experienced in the same set of centre lines.


Contact our technical team

Contact us at for more information on how this couplings can effectively and reliably meet your needs.


For more information about the products we have in EIDE, please contact us at contact with us.


Highlights of the Nil-Union elastic coupling model O and L


  • Económicos: These couplings stand out for their affordability, which makes them a cost-effective option for industrial applications. The cost-benefit ratio makes them attractive for a variety of mechanical and electrical system needs.
  • Easy to install and align: Ease of installation and alignment is a key feature. This simplifies the assembly process, reducing the time required for installation and ensuring proper configuration. The ability to easily align components contributes to optimum performance and the prevention of problems associated with misalignment.
  • Resistentes y silenciosos: These couplings are designed to be rugged, which means they can withstand varying loads and working conditions without compromising their structural integrity. In addition, the ability to maintain quiet operation is an important benefit, especially in environments where noise can be a critical factor.
  • Maintenance-free: The maintenance-free feature is significant in terms of simplicity and operational efficiency. The elimination of periodic maintenance requirements contributes to long-term reliability and reduces costs associated with downtime and maintenance operations..
  • Elastics: The elasticity of these couplings is probably one of their most important features. The elasticity allows the absorption of vibrations and shocks, thus protecting the connected components from damage and contributing to a smoother and more durable operation..


The Nil-Union elastic coupling models O and L can be used for different types of machinery, such as:


We can find the technical sheet through the following downloads:

Interact by clicking and moving the cursor

Nil-Unión Couplings

2023 All Rights Reserved © Eide | Powered by TIC BCN