Produktbeschreibung
Ductile Iron Nor-Mex Couplings Size 50/67/82/97/112/128/148/168/194/214/240/265/295/330/370/415/480/575
Produktbeschreibung
NM flexible shaft coupling is a cylindrical pin made of some non-metallic materials, which is placed between the 2 sides of the coupling and the inner surface of the outer ring, and a device to transfer the torque through the column pin to realize the connection between 2 half couplings.
NM flexible shaft coupling between the slider made of bakelite cloth or polyurethane, suitable for high speed, large torque, no sharp impact of the 2 connections. The maximum allowable torque is 850N m, and the maximum shaft diameter is 50mm.
Parameter
| Name of transmission part | water pump coupling |
| Series of Normex couplings | NM 50, NM 67, NM 82, NM 97, NM 112, NM 128, NM 148, NM 168, NM 194, NM 214, NM 240, NM 265, NM 295, NM 330, NM 370, NM 415, NM 480, NM 575. |
| Material | cast iron GG25 |
| Bore type | pilot bore, finished bore |
| Surface finish | phosphate coated. |
| Product structure |
it is composed of 2 cast iron claws and a natural rubber inner ring |
| Suitable shaft diameter | 7mm-75mm |
| Suitable motor power | within 60hp / 45KW |
Product features:
1. The maximum torque is 125kgm
2. Stable operation and low noise
3. The product is made of cast iron and cast by precision die casting, so it is not easy to cause fracture during operation
Other Couplings:
OUR COMPANY
ZheJiang Mighty Machinery Co., Ltd. specializes in offering best service and the most competitive price for our customer.
After over 10 years’ hard work, MIGHTY’s business has grown rapidly and become an important partner for oversea clients in the industrial field and become a holding company for 3 manufacturing factories.
MIGHTY’s products have obtained reputation of domestic and oversea customers with taking advantage of technology, management, quality and very competitive price.
Your satisfaction is the biggest motivation for our work, choose us to get high quality products and best service.
OUR FACTORY
Main Products:
Timing belt pulleys, timing bars, timing belt clamping plates.
Locking elements and shrink discs: could be alternative for Ringfeder, Sati, Chiaravalli, BEA, KBK, Tollok, etc.
V belt pulleys and taper lock bush.
Sprockets, idler, and plate wheels.
Gears and racks: spur gear, helical gear, bevel gear, worm gear, gear rack.
Wellenkupplungen: miniature coupling, curved tooth coupling, chain coupling, HRC coupling, normex coupling, FCL coupling, GE coupling, rigid and flexible coupling, jaw coupling, disc coupling, multi-beam coupling, universal joint, torque limiter, shaft collars.
Forging, Casting, Stamping Parts.
Other customized power transmission products and Machining Parts (OEM).
Anwendung
1. Engineering: machine tools, foundry equipments, conveyors, compressors, painting systems, etc.
2. Pharmaceuticals& Food Processing: pulp mill blowers, conveyor in warehouse, agitators, grain, boiler, bakery machine, labeling machine, robots, etc.
3. Agriculture Industries: cultivator, rice winnower tractor, harvester, rice planter, farm equipment, etc.
4. Texitile Mills: looms, spinning, wrappers, high-speed auto looms, processing machine, twister, carding machine, ruler calendar machine, high speed winder, etc.
5. Printing Machinery: newspaper press, rotary machine, screen printer machine, linotype machine offset printer, etc.
6. Paper Industries: chipper roll grinder, cut off saw, edgers, flotation cell and chips saws, etc.
7. Building Construction Machinery: buffers, elevator floor polisher mixing machine, vibrator, hoists, crusher, etc.
8. Office Equipments: typewriter, plotters, camera, money drive, money sorting machine, data storage equipment, etc.
9. Glass and Plastic Industries: conveyor, carton sealers, grinders, creeper paper manufacturing machine, lintec backing, etc.
10. Home Appliances: vacuum cleaner, laundry machine, icecream machine, sewing machine, kitchen equipments, etc.
Häufig gestellte Fragen
Q: Are you trading company or manufacturer ?
A: Wir sind eine Fabrik.
Q: How long is your delivery time?
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: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:
Contacts
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.
Any question or inquiry, pls contact us without hesitate, we assure any of your inquiry will get our prompt attention and reply!
Tina Shaw
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| Standard oder Nichtstandard: | Standard |
|---|---|
| Wellenloch: | 50-218 mm |
| Drehmoment: | 2.7-300 N.M |
| Bohrungsdurchmesser: | 7-95 mm |
| Geschwindigkeit: | 3000-12500 Rpm |
| Struktur: | Kiefer / Spinne |
| Proben: |
US$ 0.1/Piece
1 Stück (Mindestbestellmenge) | |
|---|
| Anpassung: |
Verfügbar
| Kundenspezifische Anfrage |
|---|
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.
Can flexible couplings be used in corrosive or harsh environments?
Yes, flexible couplings can be designed and selected to be used in corrosive or harsh environments. The choice of materials and coatings plays a crucial role in ensuring the coupling’s durability and performance under challenging conditions.
Corrosion-Resistant Materials:
In corrosive environments, it is essential to use materials that can withstand chemical attacks and oxidation. Stainless steel, specifically grades like 316 or 17-4 PH, is commonly chosen for flexible couplings in such situations. Stainless steel offers excellent corrosion resistance, making it suitable for applications where the coupling may come into contact with corrosive substances or moisture.
Special Coatings:
For certain harsh environments, coupling manufacturers may apply special coatings to enhance the coupling’s corrosion resistance. Examples of coatings include zinc plating, nickel plating, or epoxy coatings. These coatings provide an additional layer of protection against corrosive agents and help extend the coupling’s lifespan.
Sealed Designs:
In environments where the coupling is exposed to contaminants like dust, dirt, or moisture, sealed designs are preferred. Sealed flexible couplings prevent these substances from entering the coupling’s internal components, thus reducing the risk of corrosion and wear. The sealed design also helps to maintain the coupling’s performance over time in challenging conditions.
Hochtemperaturanwendungen:
For harsh environments with high temperatures, flexible couplings made from high-temperature resistant materials, such as certain heat-resistant stainless steels or superalloys, can be used. These materials retain their mechanical properties and corrosion resistance even at elevated temperatures.
Chemical Resistance:
For applications where the coupling might encounter chemicals or solvents, it is essential to select a coupling material that is chemically resistant. This prevents degradation and ensures the coupling’s integrity in such environments.
Specialized Designs:
In some cases, where the environment is exceptionally harsh or unique, custom-designed flexible couplings may be necessary. Engineering a coupling to meet the specific demands of the environment ensures optimal performance and reliability.
Consultation with Manufacturers:
When considering flexible couplings for corrosive or harsh environments, it is advisable to consult with coupling manufacturers or engineering experts. They can provide valuable insights and recommend suitable materials, coatings, and designs based on the specific operating conditions.
Zusammenfassung:
Flexible couplings can indeed be used in corrosive or harsh environments, provided the appropriate materials, coatings, and designs are chosen. Stainless steel, sealed designs, and special coatings are some of the solutions that enhance the coupling’s corrosion resistance and performance. It is essential to consider the specific environment and application requirements when selecting a flexible coupling to ensure optimal functionality and durability in challenging conditions.
Gibt es irgendwelche Einschränkungen oder Nachteile bei der Verwendung flexibler Kupplungen?
Flexible Kupplungen bieten zwar zahlreiche Vorteile, weisen aber auch einige Einschränkungen und Nachteile auf, die bei der Auswahl für spezifische Anwendungen berücksichtigt werden sollten. Im Folgenden sind einige der häufigsten Einschränkungen und Nachteile der Verwendung flexibler Kupplungen aufgeführt:
- Torsionssteifigkeit: Flexible Kupplungen bieten eine gewisse Torsionsflexibilität, was in vielen Anwendungen von Vorteil ist. In Systemen, die hohe Präzision und minimale Winkelabweichung erfordern, ist die inhärente Flexibilität der Kupplung jedoch unter Umständen nicht geeignet. In solchen Fällen kann eine starre Kupplung die bessere Wahl sein.
- Einschränkung bei Anwendungen mit hohem Drehmoment: Während einige flexible Kupplungen mittlere bis hohe Drehmomente bewältigen können, sind sie für Anwendungen mit extrem hohen Drehmomenten möglicherweise nicht optimal geeignet. In solchen Fällen können Spezialkupplungen, wie beispielsweise Zahnkupplungen, erforderlich sein, um die hohen Drehmomentanforderungen zu erfüllen.
- Temperaturbeschränkungen: Die Leistungsfähigkeit bestimmter flexibler Kupplungsmaterialien, insbesondere von Elastomeren und Kunststoffen, kann durch extreme Temperaturbedingungen beeinträchtigt werden. Hohe Temperaturen können zu vorzeitigem Verschleiß und verkürzter Lebensdauer der Kupplung führen, während niedrige Temperaturen die Flexibilität verringern und zu Versprödung führen können.
- Chemische Kompatibilität: Bestimmte flexible Kupplungsmaterialien sind möglicherweise nicht mit bestimmten Chemikalien oder Substanzen in der Anwendungsumgebung kompatibel. Der Kontakt mit Chemikalien kann zu einer Zersetzung oder Korrosion des Kupplungsmaterials führen und dessen Leistung und Lebensdauer beeinträchtigen.
- Installation und Ausrichtung: Flexible Kupplungen erfordern für eine optimale Funktion eine korrekte Montage und Ausrichtung. Bei fehlerhafter Montage können Ausrichtungsfehler bestehen bleiben, die zu vorzeitigem Verschleiß und Leistungseinbußen führen. Die präzise Ausrichtung der Wellen kann zeitaufwändig sein und erfordert unter Umständen Spezialausrüstung und Fachkenntnisse.
- Kosten: In manchen Fällen können flexible Kupplungen aufgrund ihrer komplexeren Konstruktion und der Verwendung spezieller Materialien teurer sein als starre Kupplungen. Der Kostenunterschied wird jedoch häufig durch die Vorteile gerechtfertigt, die sie hinsichtlich Fluchtungsfehlerkompensation und Schwingungsdämpfung bieten.
- Nutzungsdauer: Die Lebensdauer einer flexiblen Kupplung kann je nach Einsatzbedingungen und Qualität der Kupplung variieren. Regelmäßige Wartung und der rechtzeitige Austausch verschlissener oder beschädigter Teile sind unerlässlich, um die Langlebigkeit der Kupplung zu gewährleisten und unerwartete Ausfälle zu vermeiden.
Trotz dieser Einschränkungen sind flexible Kupplungen in vielen Anwendungen nach wie vor wertvolle Bauteile, da sie eine effiziente Drehmomentübertragung ermöglichen und Fluchtungsfehler ausgleichen. Die richtige Auswahl, Installation und Wartung tragen dazu bei, viele der mit flexiblen Kupplungen verbundenen Nachteile zu minimieren und ihren zuverlässigen und langlebigen Betrieb in verschiedenen mechanischen Systemen zu gewährleisten.
editor by CX 2024-03-12
