Description du produit
Caractéristiques
We are the leading NM Coupling Spider manufacturer, and are specializing in various high quality NM coupling.
1. Matériaux : Fonte, caoutchouc.
2. Les services OEM et ODM sont disponibles.
3. Haute efficacité de transmission
4. Finition : Peint.
5. Haute qualité à prix compétitif
6. Différents modèles adaptés à vos différents besoins
7. Stock disponible pour différents diamètres d'alésage des deux côtés.
8. Application dans une large gamme d'environnements.
9. Montage et démontage rapides et faciles.
10. Résistant à l'huile et à l'isolation électrique.
11. Caractéristiques de rotation identiques dans le sens horaire et antihoraire.
12. Petites dimensions, faible poids, couple transmis élevé.
13. Il offre de bonnes performances en matière de compensation du désalignement.
14.Coupling Type :NM50,NM67, NM82, NM97, NM12, NM128, NM148,NM168, NM194, NM214
Applications
NM couplings are offered in the industry’s largest variety of stock bore/keyway combinations. These couplings require no lubrication and provide highly reliable service for light, medium, and heavy duty electrical motor and internal combustion power transmission applications. Applications include power transmission to industrial equipment such as pumps, gear boxes, compressors, blowers, mixers, and conveyors.
Availability
Standard coupling
OEM coupling
High Performance
Strong Ultimate tensile strength
Perfect surface treatment
Durable,Flexible
High Quality
Corrosion resistance
Durable, Robust and Reliable
Bad condition resistance
Lower weight–high speed
Emballer
Plastic bag+ Neutral Box+ Plywood Case
Nos avantages
NM coupling extensively used in compressors, diesel engine drives, pumps, conveyors, and many other drive units.
NM coupling consists of 2 hubs and flexible ring able to compensate all type of shaft misalignments.The flexible rings are made of Nitile rubber(NBR) which have a high internal damping characteristic which enable to absorb and dampen torsional vibrations,operate effectively in temperature range of -40~+100.
Size avalible from: 50,67,82,97,112,128,148,168,194,214,240,265.
NM coupling characteristics:Quiet and smooth operation.Easy installation and maintenance free. Available to machine with high torque and intermittent operation.
| Packing&Shipping | |
| Emballer | Standard suitable package / Pallet or container. Polybag inside export carton outside, blister and Tape and reel package available. If customers have specific requirements for the packaging, we will gladly accommodate |
| Expédition |
10-20working days ofter payment receipt comfirmed (based on actual quantity). Professional goods shipping forward. |
About MIGHTY
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.
About 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 production.
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 CZPT customers in international sales.
FAQ
Q : Êtes-vous une société commerciale ou un fabricant ?
A: Nous sommes une usine.
Q : Quel est votre délai de livraison ?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q : Quelles sont vos conditions de paiement ?
A: Payment=1000USD, 30% T/T in advance ,balance before shippment.
We warmly welcome friends from domestic and abroad come to us for business negotiation and cooperation for mutual benefit. To supply customers excellent quality products with good price and punctual delivery time is our responsibility.
| Standard ou non standard : | Standard or Customized |
|---|---|
| Trou d'arbre : | 19-32 |
| Couple : | >80 N.M |
| Diamètre d'alésage : | 19 mm |
| Vitesse: | 4000 tr/min |
| Structure: | Flexible |
| Exemples : |
US$ 0/Piece
1 pièce (commande minimale) | |
|---|
| Personnalisation : |
Disponible
| Demande personnalisée |
|---|
Can flexible couplings accommodate high torque and high-speed applications?
Yes, flexible couplings can accommodate both high torque and high-speed applications, but the suitability depends on the specific design and material of the flexible coupling. Different types of flexible couplings have varying torque and speed capacities, and it’s crucial to select the right type of coupling based on the application requirements.
High Torque Applications:
Some flexible couplings, such as gear couplings and disc couplings, are designed to handle high torque levels. Gear couplings consist of toothed hubs that mesh with each other, providing a robust and efficient torque transmission. They are commonly used in heavy-duty industrial applications, such as steel mills, mining equipment, and power generation plants, where high torque loads are prevalent.
Disc couplings are also suitable for high torque applications. They use a series of flexible metal discs that can handle significant torque while compensating for misalignment. Disc couplings are often used in high-speed machinery and critical applications where precise torque transmission is essential.
High-Speed Applications:
Flexible couplings can also be used in high-speed applications. For instance, certain disc couplings, elastomeric couplings, and grid couplings are capable of handling high rotational speeds. These couplings have low inertia, which means they can respond quickly to changes in speed and provide efficient power transmission at high RPMs.
Elastomeric couplings, such as jaw couplings and tire couplings, are commonly used in various industrial applications, including pumps, compressors, and fans, where both torque and speed requirements are high. They offer good flexibility and damping properties, making them suitable for applications with high-speed variations and vibrations.
Considerations:
When selecting a flexible coupling for high torque and high-speed applications, several factors should be considered:
- The torque and speed ratings provided by the coupling manufacturer should be checked to ensure they meet or exceed the application’s requirements.
- The design and materials of the coupling should be suitable for the specific operating conditions, including temperature, environment, and potential exposure to corrosive substances.
- Proper alignment and installation of the coupling are critical to ensure optimal performance and prevent premature wear.
- In some cases, it may be necessary to use additional components, such as torque limiters or speed reducers, to protect the coupling and the connected equipment from excessive loads or speed fluctuations.
In conclusion, flexible couplings can indeed accommodate high torque and high-speed applications, but the appropriate coupling type and proper selection are essential to ensure reliable and efficient performance in these demanding conditions.
Quel rôle joue un accouplement flexible dans la réduction des temps d'arrêt et des coûts de maintenance ?
Un accouplement flexible joue un rôle important dans la réduction des temps d'arrêt et des coûts de maintenance des machines industrielles et des équipements rotatifs. Voici les principaux avantages que les accouplements flexibles procurent :
- Compensation du désalignement : L'une des principales fonctions d'un accouplement flexible est de compenser le défaut d'alignement entre deux arbres reliés. Ce défaut peut être dû à divers facteurs tels que la dilatation thermique, le tassement du sol ou les tolérances de fabrication. En compensant ce défaut d'alignement, les accouplements flexibles réduisent la transmission des forces et contraintes néfastes aux composants reliés, minimisant ainsi l'usure et prévenant les défaillances prématurées susceptibles d'entraîner des arrêts de production et des réparations coûteuses.
- Amortissement des vibrations : Les accouplements flexibles possèdent des propriétés d'amortissement intrinsèques grâce aux éléments élastomères ou flexibles qui les composent. Ces éléments absorbent et dissipent les vibrations et les chocs pouvant résulter du fonctionnement des machines tournantes. En amortissant les vibrations, les accouplements flexibles protègent les équipements connectés contre l'usure excessive et la fatigue, prolongeant ainsi leur durée de vie et réduisant la fréquence des interventions de maintenance ou de remplacement.
- Absorption des chocs : Dans les applications où les charges ou chocs soudains sont fréquents, comme dans les machines lourdes ou les équipements à grande vitesse, les accouplements flexibles jouent le rôle d'amortisseurs. Ils absorbent et dissipent l'énergie d'impact, évitant ainsi d'endommager la machine et minimisant les temps d'arrêt dus à des pannes inattendues.
- Installation et alignement faciles : Les accouplements flexibles sont conçus pour faciliter leur installation et leur alignement. Contrairement aux accouplements rigides qui exigent un alignement précis de l'arbre, les accouplements flexibles tolèrent un certain degré de désalignement lors de l'installation. Cette caractéristique simplifie la mise en service, réduit le temps d'installation et diminue les risques de problèmes liés au désalignement, minimisant ainsi les temps d'arrêt lors de l'installation initiale ou du remplacement des accouplements.
- Fréquence de maintenance réduite : La capacité des accouplements flexibles à compenser les défauts d'alignement et à amortir les vibrations réduit l'usure des roulements, des joints d'étanchéité et des autres composants connectés. Par conséquent, la fréquence des intervalles de maintenance peut être allongée, limitant ainsi les inspections fréquentes et les remplacements de pièces. Il en résulte directement une réduction des coûts de maintenance et des temps d'arrêt pour les opérations de maintenance.
- Protection des équipements : En réduisant la transmission des chocs et des vibrations, les accouplements flexibles font office de barrières de protection pour les équipements connectés. Ils contribuent à prévenir les défaillances catastrophiques et les dommages consécutifs aux machines coûteuses, évitant ainsi les arrêts imprévus et les réparations onéreuses.
De manière générale, les accouplements flexibles sont des composants essentiels qui améliorent la fiabilité et la durée de vie des équipements rotatifs. Leur capacité à compenser les défauts d'alignement, à amortir les vibrations et à protéger contre les chocs contribue à réduire les temps d'arrêt, les coûts de maintenance et à accroître la productivité dans les applications industrielles.
What is a flexible coupling and how does it work?
A flexible coupling is a mechanical device used to connect two shafts while allowing for relative movement between them. It is designed to transmit torque from one shaft to another while compensating for misalignment, vibration, and shock. Flexible couplings are essential components in various rotating machinery and systems, as they help protect the connected equipment and enhance overall performance.
Types of Flexible Couplings:
There are several types of flexible couplings, each with its unique design and characteristics. Some common types include:
- Accouplements à mâchoires : Jaw couplings feature elastomer spiders that fit between two hubs. They can accommodate angular and parallel misalignment while dampening vibrations.
- Accouplements à disque : Disc couplings use thin metallic discs to connect the shafts. They are highly flexible and provide excellent misalignment compensation.
- Accouplements d'engrenages : Gear couplings use gear teeth to transmit torque. They offer high torque capacity and can handle moderate misalignment.
- Accouplements de poutres : Beam couplings use a single piece of flexible material, such as a metal beam, to transmit torque while compensating for misalignment.
- Accouplements à soufflets : Bellows couplings use a bellows-like structure to allow for axial, angular, and parallel misalignment compensation.
- Accouplements Oldham : Oldham couplings use three discs, with the middle one having a perpendicular slot to allow for misalignment compensation.
How a Flexible Coupling Works:
The operation of a flexible coupling depends on its specific design, but the general principles are similar. Let’s take the example of a jaw coupling to explain how a flexible coupling works:
- Two shafts are connected to the coupling hubs on either side, with an elastomer spider placed between them.
- When torque is applied to one shaft, it causes the spider to compress and deform slightly, transmitting the torque to the other shaft.
- In case of misalignment between the shafts, the elastomer spider flexes and compensates for the misalignment, ensuring smooth torque transmission without imposing excessive loads on the shafts or connected equipment.
- The elastomer spider also acts as a damping element, absorbing vibrations and shocks during operation, which reduces wear on the equipment and enhances system stability.
Overall, the flexibility and ability to compensate for misalignment are the key features that allow a flexible coupling to function effectively. The choice of a specific flexible coupling type depends on the application’s requirements, such as torque capacity, misalignment compensation, and environmental conditions.
editor by CX 2023-09-01
