Description du produit
Description du produit
NM Jaw Couplings shaft Couplings
L'accouplement flexible NM est une goupille cylindrique fabriquée à partir de matériaux non métalliques, placée entre les 2 côtés de l'accouplement et la surface intérieure de l'anneau extérieur, et un dispositif permettant de transmettre le couple à travers la goupille de colonne pour réaliser la connexion entre 2 demi-accouplements.
Accouplement flexible NM avec coulisseau en tissu bakélite ou polyuréthane, adapté aux hautes vitesses et aux couples élevés, sans à-coups au niveau des deux liaisons. Couple maximal admissible : 850 N·m ; diamètre d’arbre maximal : 50 mm.
NM Coupling Characteristics:
1. It is small in size, light in quality, simple in structure, convenient in installation and low in price. It is often used in small power occasions.
2, the transmission torque is large, and in the same torque, most of the rotary diameter is smaller than the tooth coupling, and it can partly replace the tooth coupling.
3, the inertia force is small, it is suitable for 2 axis connection with little torque, high speed and no sharp impact. The transmission torque of nylon slider is small, but it is more suitable for high-speed operation without lubrication.
Paramètres du produit
Emballage et expédition
Packaging:
Plastic Bag+ Carton+Wooden case ( If you have other requirements, we can customized according to customer requirements packaging.)
Shipping :
1.Most of the standard ones are in stock which we can send in 3-10 days after inspection and package.
2. Customized products delivery time should be determined according to the number.
Profil de l'entreprise
ZheJiang Mighty Machinery Co., Ltd. specializes in manufacturing Mechanical Power Transmission Products.
We Mighty is the division/branch of SCMC Group, which is a wholly state-owned company, established in 1980.
À propos de Mighty :
-3 manufacturing factories, we have 5 technical staff, our FTY have strong capacity for design and process design, and more than
70 workers and double shift eveyday.
-Large quality of various material purchase and stock in warhouse which ensure the low cost for the material and production in
time.
-Strick quality control are apply in the whole prodution. we have incoming inspection,process inspection and final production
inspection which can ensure the perfect of the goods quality.
-14 years of machining experience. Long time cooperate with the Global Buyer, make us easy to understand the csutomer and handle the export.
MIGHTY’s products are mainly exported to Europe, America and the Middle East market. With the top-ranking management, professional technical support and abundant export experience, MIGHTY has established lasting and stable business partnership with many world famous companies and has got good reputation from CHINAMFG customers in
FAQ
Q1: Are you trading company or manufacturer?
A: We are factory.
Q2:Do you provide samples? is it free or extra?
A: : Yes, we could offer the sample but not for free.Actually we have a very good price principle, when you make the bulk order then cost of sample will be return to you.
Q3: How long is your delivery time?
A: Generally it is 10-15 days if the goods are in stock. or it is 7-25 days if the goods are not in stock, it is according to quantity.
Q4:How long is your warranty?
A: Our Warranty is 12 month.
Q5 :Do you have inspection procedures for coupling?
A:1, ZheJiang , P.R. China
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| Standard ou non standard : | Standard |
|---|---|
| Trou d'arbre : | 19-32 |
| Matériel: | Cast Iron |
| Taper: | Nm Couplings |
| Product Name: | Nm Water Pump Coupling |
| Garantie: | 1 Year |
| Exemples : |
US$ 2.55/Piece
1 pièce (commande minimale) | |
|---|
| Personnalisation : |
Disponible
| Demande personnalisée |
|---|


How do flexible couplings compare to other types of couplings in terms of performance?
Flexible couplings offer distinct advantages and disadvantages compared to other types of couplings, making them suitable for specific applications. Here is a comparison of flexible couplings with other commonly used coupling types in terms of performance:
- Rigid Couplings:
Rigid couplings are simple in design and provide a solid connection between two shafts, allowing for precise torque transmission. They do not offer any flexibility and are unable to compensate for misalignment. As a result, rigid couplings require accurate shaft alignment during installation, and any misalignment can lead to premature wear and increased stress on connected equipment. Rigid couplings are best suited for applications where shaft alignment is precise, and misalignment is minimal, such as in well-aligned systems with short shaft spans.
- Flexible Couplings:
Flexible couplings, as discussed previously, excel at compensating for misalignment between shafts. They offer angular, parallel, and axial misalignment compensation, reducing stress on connected components and ensuring smooth power transmission. Flexible couplings are versatile and can handle various applications, from light-duty to heavy-duty, where misalignment, vibration damping, or shock absorption is a concern. They provide a cost-effective solution for many industrial, automotive, and machinery applications.
- Oldham Couplings:
Oldham couplings are effective at compensating for angular misalignment while maintaining constant velocity transmission. They offer low backlash and electrical isolation between shafts, making them suitable for precision motion control and applications where electrical interference must be minimized. However, Oldham couplings have limited capacity to handle parallel or axial misalignment, and they may not be suitable for applications with high torque requirements.
- Gear Couplings:
Gear couplings are robust and can handle high torque levels, making them suitable for heavy-duty applications such as mining and steel mills. They offer good misalignment compensation and have a compact design. However, gear couplings are relatively more expensive and complex than some other coupling types, and they may generate more noise during operation.
- Disc Couplings:
Disc couplings provide excellent misalignment compensation, including angular, parallel, and axial misalignment. They have high torsional stiffness, making them ideal for applications where accurate torque transmission is critical. Disc couplings offer low inertia and are suitable for high-speed applications. However, they may be more sensitive to shaft misalignment during installation, requiring precise alignment for optimal performance.
- Conclusion:
The choice of coupling type depends on the specific requirements of the application. Flexible couplings excel in compensating for misalignment and vibration damping, making them versatile and cost-effective solutions for many applications. However, in situations where high torque, precision, or specific electrical isolation is necessary, other coupling types such as gear couplings, disc couplings, or Oldham couplings may be more suitable. Proper selection, installation, and maintenance of the coupling are essential to ensure optimal performance and reliability in any mechanical system.

Quel est l'impact d'un accouplement flexible sur la fiabilité globale des équipements connectés ?
Un accouplement flexible influe considérablement sur la fiabilité globale des équipements connectés, et ce, de plusieurs manières :
- Compensation du désalignement : Les accouplements flexibles peuvent compenser les défauts d'alignement angulaires et parallèles entre les arbres connectés. En tolérant ces défauts, l'accouplement réduit les contraintes et l'usure sur les roulements, les joints d'étanchéité et autres composants rotatifs. Cette caractéristique prévient les défaillances prématurées de ces composants, contribuant ainsi à une fiabilité accrue et à une durée de vie prolongée des équipements.
- Amortissement des vibrations : Les accouplements flexibles possèdent des propriétés d'amortissement intrinsèques grâce à leurs éléments élastomères ou flexibles. Ces éléments absorbent et dissipent les vibrations générées lors du fonctionnement des machines. En amortissant les vibrations, l'accouplement protège l'équipement connecté des oscillations excessives, réduisant ainsi la fatigue et prévenant les défaillances mécaniques. Ce meilleur contrôle des vibrations accroît la fiabilité du système.
- Absorption des chocs : Dans les applications soumises à des variations de charge soudaines ou à des chocs, comme dans les machines lourdes ou les équipements à grande vitesse, un accouplement flexible joue le rôle d'amortisseur. Il absorbe et dissipe l'énergie d'impact, protégeant ainsi la machine des dommages causés par les charges soudaines. Cette capacité d'absorption des chocs contribue à la fiabilité globale de l'équipement connecté.
- Usure réduite : La flexibilité de l'accouplement minimise les contraintes et l'usure sur les équipements rotatifs. Elle tolère de légers mouvements et défauts d'alignement, réduisant ainsi le frottement et les contraintes sur les roulements et autres composants critiques. Cette réduction de l'usure diminue la fréquence des opérations de maintenance et de remplacement, améliorant la fiabilité globale de l'équipement.
- Compensation de la dilatation thermique : Les variations de température dans les machines peuvent entraîner une dilatation ou une contraction thermique des arbres. Un accouplement flexible compense ces effets thermiques, garantissant ainsi un alignement optimal de la machine malgré les fluctuations de température. Cette compensation prévient le grippage et le désalignement, assurant un fonctionnement fiable.
- Protection contre les surcharges : Les accouplements flexibles protègent les équipements connectés contre les surcharges et les vibrations de torsion. Agissant comme un fusible mécanique, ils déconnectent la transmission en cas de surcharge, évitant ainsi d'endommager les machines coûteuses. Ce dispositif de sécurité renforce la fiabilité globale et réduit le risque de pannes catastrophiques.
- Entretien et alignement faciles : Les accouplements flexibles sont conçus pour une installation et un alignement faciles. Cette caractéristique simplifie les procédures de maintenance, facilitant ainsi l'inspection et le remplacement des accouplements si nécessaire. Des accouplements correctement alignés améliorent les performances et la durée de vie des équipements, renforçant ainsi leur fiabilité globale.
En compensant les défauts d'alignement, en amortissant les vibrations, en absorbant les chocs, en réduisant l'usure et en offrant d'autres fonctions de protection, un accouplement flexible améliore considérablement la fiabilité des équipements connectés. Il prolonge la durée de vie des composants critiques, minimise les temps d'arrêt et garantit un fonctionnement fluide et efficace, ce qui en fait un élément précieux dans diverses applications industrielles.

Can flexible couplings handle misalignment between shafts?
Yes, flexible couplings are specifically designed to handle misalignment between shafts in rotating machinery and mechanical systems. Misalignment can occur due to various factors, including installation errors, thermal expansion, manufacturing tolerances, or shaft deflection during operation.
Flexible couplings offer the ability to compensate for different types of misalignment, including:
- Désalignement angulaire : When the shafts are not collinear and have an angular offset, flexible couplings can accommodate this misalignment by flexing or twisting, allowing the two shafts to remain connected while transmitting torque smoothly.
- Désalignement parallèle : Parallel misalignment occurs when the two shafts are not perfectly aligned along their axes. Flexible couplings can adjust to this misalignment, ensuring that the shafts remain connected and capable of transmitting power efficiently.
- Désalignement axial : Axial misalignment, also known as end float or axial displacement, refers to the relative axial movement of the two shafts. Some flexible coupling designs can accommodate axial misalignment, allowing for slight axial movements without disengaging the coupling.
The ability of flexible couplings to handle misalignment is essential in preventing premature wear and failure of the connected equipment. By compensating for misalignment, flexible couplings reduce the stress on the shafts, bearings, and seals, extending the service life of these components and improving overall system reliability.
It is crucial to select the appropriate type of flexible coupling based on the specific misalignment requirements of the application. Different coupling designs offer varying degrees of misalignment compensation, and the choice depends on factors such as the magnitude and type of misalignment, the torque requirements, and the operating environment.
In summary, flexible couplings play a vital role in handling misalignment between shafts, ensuring efficient power transmission and protecting mechanical systems from the adverse effects of misalignment. Their ability to accommodate misalignment makes them indispensable components in various industrial, automotive, aerospace, and marine applications.


editor by CX 2024-04-30