توضیحات محصول
NM Coupling, NM Rubber Coupling Elements, NM Rubber Spider
| Material: | NBR, CSM/SBR | Color: | Black |
| Tensile Strength: | 12Mpa | Hardness: | 80shore A |
| Elongation: | 350% | Density: | 1.25g/cm3 |
| Size: | NM50, NM67, NM82, NM97, NM112, NM128, NM148, NM168, NM194, NM214, NM240, NM265 |
NM coupling
NM type is precisely produced by a special designed synthetic rubber with 2 similar bodies of cast iron
Cast iron flanges:
Designed not only for the power transmission but also for protection of flexible rubber
Flexible rubber:Applications for pumps, fans, compressors, vehicles, transporting equipments, constructors, cement mixers, tractors, transmission machines, metal working machines, rollers and all other transmissions
Made of rubber and steel cores are inserted in the teeth so as to provide excellent durability and performance of coupling
Features:
Economical and practical using
Quiet and smooth operation
Easy installation and maintenance
Available to machines with high torque and intermittent operation
Characteristics of the synthetic rubber: proper elasticity and resistance to damping, oil, acids and alkalie
Specifications:
1: with CE certificate
2: full detection of quality before delivery
3: OEM is welcomed
4: rich experience in precision casting
material: CSM/SBR, NBR
color: black.
surface: smooth
tensile strength: 12Mpa
hardness: 80Shore A
elongation: 400%
density: 1.25g/cm3
elasticity impact: >25%
tear strength: 35KN/m
working temperature: 100oC
standard size:
NM50, NM67, NM82, NM97, NM112, NM128, NM148, NM168, NM194, NM214, NM240, NM265
Physical character: made by injection with high quality polyester or mould CSM/SBR. It is designing and special for all kinds of metal shaft coupling with very good performance of high tensile strength, high wear resistant, high elastic resilience, water resistant, oil resistant and excellent fatigue resilience, high impact resistant etc. We have full sets moulds and supply full range of GR, GS, MT, Hb, HRC, L, NM and Gear J series couplings with high quality and excellent experience. Apply to all kinds of industrial metal shaft coupling.
Specifications:
material: polyester, CSM/SBR
color: yellow, red, purple, green, black etc.
surface: smooth
tensile strength: 12-55Mpa
hardness: 80-98Shore A
elongation: 400%-650%
density: 1.25g/cm3
elasticity impact: >25%
tear strength: 35-155KN/m
CHINAMFG abrasion loss: <0.05cm3/1.61km
compression set (22h*70oC): <10%
working temperature: 120oC
standard size for polyurethane coupling:
GR14, GR19, GR24, GR28, GR38, GR42, GR48, GR55, GR65, GR75, GR90, GR100, GR110, GR125, GR140, GR160, GR180
MT1, MT2, MT3, MT4, MT5, MT6, MT7, MT8, MT9, MT10, MT11, MT12, MT13
HRC70, HRC90, HRC110, HRC130, HRC150, HRC180, HRC230, HRC280
L35, L50, L70, L75, L90/95, L99/100, L110, L150, L190, L225, L276
FALK-R 10R, 20R, 30R, 40R, 50R, 60R, 70R, 80R
standard size for rubber coupling:
Hb80, Hb95, Hb110, Hb125, Hb140, Hb160, Hb180, Hb200, Hb240, Hb280, Hb315
HRC70, HRC90, HRC110, HRC130, HRC150, HRC180, HRC230, HRC280
L35, L50, L70, L75, L90/95, L99/100, L110, L150, L190, L225
NM50, NM67, NM82, NM97, NM112, NM128, NM148, NM168, NM194, NM214, NM240, NM265
Gear 3J, 4J, 5J, 6J, 7J, 8J, 9J, 10J, 11J
special size build molding according to the buyer’s drawings
***when you enquiry, pls confirm product’s number and quantity***
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| Standard: | DIN, ANSI, GB |
|---|---|
| Material: | Nr+SBR |
| اتصال: | Flange |
| Surface Treatment: | Nothing |
| Head Type: | Round |
| Type: | Nm Type |
| نمونهها: |
US$ 10/Piece
۱ قطعه (حداقل سفارش) | |
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| سفارشی سازی: |
موجود است
| درخواست سفارشی |
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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.
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.
High-Temperature Applications:
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.
Summary:
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.
چه موادی معمولاً در ساخت کوپلینگهای انعطافپذیر استفاده میشوند؟
کوپلینگهای انعطافپذیر با استفاده از مواد متنوعی ساخته میشوند که هر کدام خواص و ویژگیهای متفاوتی را برای کاربردهای خاص ارائه میدهند. انتخاب ماده به عواملی مانند الزامات کاربرد، شرایط محیطی، ظرفیت گشتاور و انعطافپذیری مورد نظر بستگی دارد. در اینجا برخی از مواد رایج در ساخت کوپلینگهای انعطافپذیر آورده شده است:
- فولاد: فولاد به دلیل استحکام، دوام و قابلیتهای عالی انتقال گشتاور، مادهای پرکاربرد در کوپلینگهای انعطافپذیر است. کوپلینگهای فولادی برای کاربردهای صنعتی سنگین با نیاز به گشتاور بالا و شرایط عملیاتی سخت مناسب هستند.
- فولاد ضد زنگ: فولاد ضد زنگ اغلب برای ساخت کوپلینگهای انعطافپذیر در محیطهایی با پتانسیل خوردگی بالا استفاده میشود. کوپلینگهای فولاد ضد زنگ مقاومت بسیار خوبی در برابر زنگزدگی و سایر عناصر خورنده دارند و آنها را برای کاربردهای دریایی، فرآوری مواد غذایی و صنایع شیمیایی ایدهآل میکنند.
- آلومینیوم: کوپلینگهای آلومینیومی سبک هستند، اینرسی کمی دارند و تعادل بسیار خوبی را فراهم میکنند. آنها معمولاً در کاربردهایی که کاهش وزن بسیار مهم است، مانند هوافضا و رباتیک، استفاده میشوند.
- برنج: کوپلینگهای برنجی به دلیل رسانایی الکتریکی خود شناخته شدهاند و در کاربردهایی که اتصال زمین الکتریکی یا ایزولاسیون الکتریکی مورد نیاز است، مانند برخی ماشینآلات صنعتی یا تجهیزات الکترونیکی، مورد استفاده قرار میگیرند.
- چدن: کوپلینگهای چدنی استحکام و دوام خوبی دارند و اغلب در کاربردهای صنعتی که مقاومت در برابر بارهای ضربهای و ارتعاشات ضروری است، مورد استفاده قرار میگیرند.
- پلاستیک/پلیمر: برخی از کوپلینگهای انعطافپذیر از پلیمرها یا پلاستیکهای با کارایی بالا مانند پلی اورتان یا نایلون استفاده میکنند. این مواد انعطافپذیری خوب، اصطکاک کم و مقاومت در برابر مواد شیمیایی را فراهم میکنند. کوپلینگهای پلاستیکی برای کاربردهایی مناسب هستند که مقاومت در برابر خوردگی و سبک بودن ضروری است.
- الاستومرها: الاستومرها به عنوان عناصر انعطافپذیر در بسیاری از کوپلینگهای انعطافپذیر استفاده میشوند. موادی مانند لاستیک طبیعی، نئوپرن یا اورتان معمولاً به عنوان عناصر عنکبوتی الاستومری استفاده میشوند که انعطافپذیری و خواص میرایی ارتعاش را فراهم میکنند.
انتخاب جنس کوپلینگ به نیازهای خاص کاربرد بستگی دارد. به عنوان مثال، کاربردهای با کارایی بالا و سنگین ممکن است برای استحکام خود به کوپلینگهای فولادی یا فولاد ضد زنگ نیاز داشته باشند، در حالی که کاربردهایی که کاهش وزن بسیار مهم است ممکن است از کوپلینگهای آلومینیومی یا پلیمری بهره ببرند. علاوه بر این، انتخاب جنس تحت تأثیر عواملی مانند محدوده دما، قرار گرفتن در معرض مواد شیمیایی و الزامات الکتریکی در محیط عملیاتی کاربرد قرار میگیرد.
تولیدکنندگان معمولاً مشخصات مواد کوپلینگهای خود را ارائه میدهند و به کاربران کمک میکنند تا بر اساس نیازهای خاص کاربردهای خود، تصمیمات آگاهانهای بگیرند.
editor by CX 2024-05-09
