Tag Archives: propeller shaft

China wholesaler Propeller Shaft Coupling Vibrator for Magnetic Bracelet Water Couplings Flexible Chain Fluid Flange Stainless Steel Spacer

Product Description

     Propeller Shaft Coupling Vibrator for Magnetic Bracelet Water Couplings Flexible Chain Fluid Flange Stainless Steel Spacer

Application of Propeller Shaft Coupling

A propeller shaft coupling is a mechanical device that connects 2 shafts together. It is used to transmit torque and rotation between the shafts. Propeller shaft couplings are used in a variety of applications, including:

  • Marine. Propeller shaft couplings are used in marine applications to connect the engine to the propeller.
  • Industrial. Propeller shaft couplings are used in industrial applications to connect different pieces of equipment together.
  • Agricultural. Propeller shaft couplings are used in agricultural applications to connect the engine to the driveline.
  • Off-highway. Propeller shaft couplings are used in off-highway applications to connect the engine to the driveline.
  • Other. Propeller shaft couplings are used in a variety of other applications, such as wind turbines and conveyor belts.

There are a variety of different types of propeller shaft couplings, each with its own advantages and disadvantages. The type of coupling that is best for a particular application will depend on the specific requirements of that application.

Here are some of the advantages of using propeller shaft couplings:

  • They can transmit high torque and rotation.
  • They are durable and can withstand a variety of harsh conditions.
  • They are easy to install and maintain.
  • They are available in a variety of sizes and styles to fit different applications.

Here are some of the disadvantages of using propeller shaft couplings:

  • They can be expensive.
  • They can be difficult to align properly.
  • They can wear out over time.

Overall, propeller shaft couplings are a versatile and reliable way to connect 2 shafts together. They are used in a variety of applications and can be a valuable asset in any fleet.

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fluid coupling

Contribution of Fluid Coupling to the Longevity of Connected Equipment

A fluid coupling plays a crucial role in enhancing the longevity and protecting the connected equipment by providing the following benefits:

  • Shock Load Damping: When the equipment starts or stops, there can be sudden changes in torque, resulting in shock loads. The fluid coupling absorbs and dampens these shock loads, reducing stress and wear on the connected equipment.
  • Torsional Vibration Damping: Torsional vibrations can occur during the operation of the connected equipment, which can be damaging over time. The fluid coupling acts as a torsional damper, reducing these vibrations and preventing potential fatigue failure in the equipment.
  • Overload Protection: In case of sudden overloads or jamming of the connected equipment, the fluid coupling can slip and decouple the load, protecting both the equipment and the driving motor from excessive stress and damage.
  • Smooth Startup: During startup, the fluid coupling allows a gradual increase in torque, enabling a smooth and controlled acceleration of the connected equipment. This eliminates sudden jerks and reduces mechanical stress during the startup phase.
  • Load Distribution: The fluid coupling distributes the load evenly across the connected equipment, minimizing wear and tear on specific components and extending the overall lifespan of the machinery.
  • Reduced Maintenance: By reducing shock loads and vibrations, the fluid coupling helps decrease the frequency of maintenance and repairs required for the connected equipment, resulting in cost savings and improved uptime.
  • Energy Efficiency: The fluid coupling allows for efficient power transmission by reducing losses during startup and load changes. This, in turn, helps in lowering the overall energy consumption of the system and contributes to equipment longevity.
  • Contamination Prevention: The fluid coupling encapsulates the driving and driven components, providing a barrier that helps prevent contaminants such as dust, dirt, and moisture from entering the equipment’s internal components. This protection can extend the life of bearings and other sensitive parts.

Overall, a fluid coupling acts as a protective intermediary between the driving motor and the connected equipment, enhancing the system’s reliability, efficiency, and longevity by mitigating the effects of shocks, vibrations, and overloads.

fluid coupling

Safety Features in Modern Fluid Coupling Designs

Modern fluid coupling designs incorporate various safety features to ensure the reliable and secure operation of the equipment. Here are some of the key safety features commonly found in modern fluid couplings:

1. Overload Protection: One of the primary safety features in modern fluid couplings is overload protection. In the event of an abrupt increase in load or torque, the fluid coupling slips, absorbing the excess torque and preventing damage to the connected equipment. This feature safeguards against mechanical failures and protects the machinery.

2. Torque Limiting: Fluid couplings are designed with torque limiting capabilities, which allow them to control the maximum torque transmitted to the driven equipment. By setting the torque limit within a safe operating range, the fluid coupling prevents excessive stresses on the system, ensuring longevity and reliability.

3. Automatic Overheat Protection: Some fluid couplings are equipped with automatic overheat protection mechanisms. If the fluid coupling’s operating temperature exceeds a predefined threshold, the protection system disengages the coupling temporarily until the temperature returns to a safe level. This prevents damage due to overheating and enhances safety.

4. Backstop or Holdback Device: In certain applications where reverse rotation is a concern, fluid couplings may include a backstop or holdback device. This feature prevents the driven equipment from rotating in the opposite direction, enhancing safety during sudden stops or reversals.

5. Fail-Safe Operation: Many modern fluid couplings are designed to operate in a fail-safe manner. In the event of any malfunction or failure, the coupling defaults to a safe mode, allowing the equipment to continue operating at reduced capacity or gradually shut down, avoiding catastrophic failures.

6. Seal Protection: Proper sealing is crucial for fluid couplings, especially in harsh environments. Modern designs often include advanced seal protection features to prevent oil leakage and contamination, ensuring environmental safety and reducing maintenance requirements.

7. Low Noise and Vibration: Reduced noise and vibration levels in fluid couplings contribute to operator safety and comfort. The damping properties of the fluid coupling help minimize vibrations, creating a quieter and more stable working environment.

8. Emergency Stop Capability: Some fluid couplings may have emergency stop provisions to quickly disengage the coupling in critical situations. This feature allows for rapid shutdowns in emergencies, preventing accidents and protecting personnel.

9. Condition Monitoring: Advanced fluid coupling designs may include condition monitoring capabilities. This allows operators to monitor the coupling’s performance, temperature, and other parameters in real-time, facilitating predictive maintenance and avoiding unexpected failures.

Overall, the incorporation of these safety features in modern fluid coupling designs ensures the protection of machinery, operators, and the surrounding environment. These safety measures enhance the reliability, efficiency, and longevity of equipment, making fluid couplings a safe and valuable choice for power transmission in various industrial applications.

fluid coupling

Key Components of a Fluid Coupling and Their Functions

A fluid coupling consists of several essential components that work together to transfer torque and facilitate smooth power transmission. The key components and their functions are as follows:

  • Impeller: The impeller is the primary input element of the fluid coupling. It is directly connected to the driving shaft and rotates with it. The impeller’s function is to churn and circulate the fluid inside the coupling, creating a flow that generates a hydrodynamic torque.
  • Runner/Turbine: The runner, also known as the turbine, is the output element of the fluid coupling. It is connected to the driven shaft and rotates with it. As the fluid from the impeller flows onto the runner, it causes the runner to rotate and transmit torque to the driven load.
  • Fluid: The fluid, typically hydraulic oil, is the medium that transmits torque from the impeller to the runner. It fills the space between the impeller and the runner and allows the torque transfer to take place through hydrodynamic action.
  • Filler Plug: The filler plug is used to add or drain the fluid from the fluid coupling. It allows for the adjustment of fluid levels, which can influence the coupling’s performance characteristics.
  • Seal Ring: The seal ring prevents the fluid from leaking out of the fluid coupling and ensures that the coupling operates with maximum efficiency and minimal losses.
  • Bearing: The bearing provides support for the input and output shafts, allowing them to rotate smoothly. Bearings are critical for maintaining alignment and reducing friction within the fluid coupling.

These key components work together to create a hydrodynamic torque transfer, enabling the fluid coupling to smoothly transmit power and torque from the driving shaft to the driven shaft without any physical contact between the two shafts.

China wholesaler Propeller Shaft Coupling Vibrator for Magnetic Bracelet Water Couplings Flexible Chain Fluid Flange Stainless Steel Spacer  China wholesaler Propeller Shaft Coupling Vibrator for Magnetic Bracelet Water Couplings Flexible Chain Fluid Flange Stainless Steel Spacer
editor by CX 2024-02-27

China OEM CHINAMFG Car Parts Drive Shaft Flex Joint Wholesale Auto Spare Parts 1J0521127A Driveshaft Coupling Front Propeller Shaft Flex Disc VW Golf Tiguan Audi A3 Q3

Product Description

SENP 1J57127A Original Quality Drive Shaft Flex Joint

Product Type

   Drive Shaft Flex Joint

OE No.

   1J57127A

Suitable for

   For VW Golf Tiguan Audi A3 Q3

Weight

1.5 kgs

Brand

CHINAMFG

Certification

ISO9001

MOQ

1 PC

Packing

CHINAMFG packing, neutral packing, client’s packing

Warranty

24 months / 80000km

Payment term

T/T, Paypal, Western Union


FAQ:

Q1. Where is your company?
A: Our head office are located in HangZhou City, ZheJiang Province, China(Mainland);
Q2. What is your terms of packing?
A: Generally, we pack our goods in CHINAMFG boxes or neutral boxes.
Q3. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.
Q4. What is your terms of delivery?
A: EXW, FOB.
Q5. How about your delivery time?
A: Generally, it will take about 20 days after receiving your deposit. The specific delivery time depends on the items and the  quantity of your order.
Q6. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q7. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q8. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q9. How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers’ benefit;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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disc coupling

Common Applications of Disc Couplings

Disc couplings find extensive use across various industries and applications where reliable torque transmission, misalignment compensation, and torsional stiffness are essential. Some notable examples include:

  • Industrial Machinery: Disc couplings are employed in industrial equipment such as pumps, compressors, generators, and conveyors. They ensure precise torque transfer and alignment in heavy-duty machinery.
  • Power Generation: Gas turbines, steam turbines, and power generators often utilize disc couplings to transmit torque between components while withstanding high rotational speeds.
  • Aerospace: In aircraft and spacecraft, disc couplings help connect critical systems like engines and auxiliary power units, ensuring dependable torque transmission in demanding environments.
  • Marine: Ships and offshore platforms use disc couplings to connect propulsion systems, generators, and other machinery, even in conditions with variable loads and misalignments.
  • Oil and Gas: Disc couplings play a crucial role in drilling rigs, pumps, and other equipment where reliable torque transmission and misalignment compensation are vital.
  • Automotive: Some automotive applications use disc couplings to connect components within drivetrains and transmissions, especially in vehicles with high-performance requirements.

These examples highlight the versatility and importance of disc couplings in various industries where precise torque transmission, misalignment handling, and torsional stiffness are critical for optimal performance.

disc coupling

Recent Advancements in Disc Coupling Design

Disc coupling technology has seen continuous advancements to enhance performance, reliability, and adaptability to various applications. Some recent innovations in disc coupling design include:

  • Material Enhancements: The development of new materials, such as advanced alloys and composite materials, has improved coupling durability, corrosion resistance, and overall lifespan.
  • Flexible Disc Profiles: Innovative disc profiles are designed to optimize flexibility while maintaining torque transmission capabilities, allowing for better misalignment compensation and shock absorption.
  • Modular Designs: Modular disc coupling systems offer flexibility in adapting to different torque and misalignment requirements, making them versatile for a wide range of applications.
  • Enhanced Torsional Stiffness: Some designs focus on achieving higher torsional stiffness, ensuring accurate torque transmission and responsiveness even in demanding conditions.
  • Smart Couplings: Integration of sensor technology enables real-time monitoring of coupling performance, allowing for predictive maintenance and reducing downtime.

These advancements are driven by the increasing demands of modern machinery and the need for higher efficiency, reduced maintenance, and improved overall system performance. Engineers and manufacturers are continually exploring new ways to optimize disc coupling design for a variety of industries and applications.

disc coupling

Challenges and Solutions for Misaligned Disc Couplings

Misalignment in disc couplings can lead to several challenges, but these issues can be effectively addressed using appropriate measures:

  • Reduced Efficiency: Misalignment can cause increased friction and wear, leading to energy losses and reduced coupling efficiency. Regular maintenance and proper alignment can help mitigate this issue.
  • Vibration and Noise: Misalignment often results in vibrations and noise in the machinery. This can impact the overall performance of the system and cause discomfort to operators. Ensuring precise alignment and using vibration-damping solutions can minimize these effects.
  • Premature Wear: Disc couplings experiencing misalignment may wear out prematurely due to uneven loading and stress concentrations. Optimal alignment and using coupling models designed to handle misalignment can extend the coupling’s lifespan.
  • Imbalanced Loads: Misalignment can lead to imbalanced loads on the coupling discs, causing uneven stress distribution. This can lead to fatigue and failure. Using spacer elements between the discs and proper alignment can distribute the loads more evenly.
  • Reduced Accuracy: In applications requiring precision positioning, misaligned disc couplings can result in inaccurate measurements or positioning. Implementing accurate alignment practices and selecting couplings designed for precise applications can mitigate this challenge.
  • Temperature Rise: Misalignment-induced friction generates heat, leading to temperature rise in the coupling and adjacent components. This can potentially affect the material properties and lead to premature wear. Proper alignment and selecting appropriate lubrication can manage temperature rise.

Addressing misalignment challenges involves a combination of careful installation, routine maintenance, alignment checks, and using coupling designs that offer flexibility and resilience to misalignment. Regular monitoring and addressing misalignment issues promptly can help ensure the longevity and optimal performance of disc couplings.

China OEM CHINAMFG Car Parts Drive Shaft Flex Joint Wholesale Auto Spare Parts 1J0521127A Driveshaft Coupling Front Propeller Shaft Flex Disc VW Golf Tiguan Audi A3 Q3  China OEM CHINAMFG Car Parts Drive Shaft Flex Joint Wholesale Auto Spare Parts 1J0521127A Driveshaft Coupling Front Propeller Shaft Flex Disc VW Golf Tiguan Audi A3 Q3
editor by CX 2024-02-19

China Good quality Disc Coupling Manufacturers Shaft Propeller Disk-Type Flexible Coupling

Product Description

Item No. φD L W L1 M Tighten the strength(N.m)
SG7-8-C19- 19.5 20 1.2 9.4 M2.5 1
SG7-8-C26- 26 25.5 2.5 11.5 M3 1.5
SG7-8-C34- 34 32.3 3.3 14.5 M4 1.5
SG7-8-C39- 39 34.1 4.1 15 M4 2.5
SG7-8-C44- 44 34.5 4.5 15 M4 2.5
SG7-8-C50- 50 40.5 4.5 18 M5 7
SG7-8-C56- 56 45 5 20 M5 7
SG7-8-C68- 68 54 6 24 M6 12
SG7-8-C82- 82 68 8 30 M8 16
SG7-8-C94- 94 68 8 30 M8 28
SG7-8-C104- 104 70 10 30 M8 28

Item No. Rated torque Maximum Torque Max Speed Inertia Moment N.m rad RRO Tilting Tolerance End-play Weight:(g)
SG7-8-C19- 1N.m 2N.m 10000prm 0.65×10-6kg.m² 200N.m/rad 0.04mm 1c ±0.2mm 12
SG7-8-C26- 1.4N.m 2.8N.m 10000prm 1.8×10-6kg.m² 690N.m/rad 0.04mm 1c ±0.2mm 31
SG7-8-C34- 2.8N.m 5.6N.m 10000prm 7.2×10-6kg.m² 1650N.m/rad 0.04mm 1c ±0.2mm 64
SG7-8-C39- 5.8N.m 11.6N.m 10000prm 1.8×10-5kg.m² 2500N.m/rad 0.04mm 1c ±0.2mm 97
SG7-8-C44- 8.7N.m 17.4N.m 10000prm 2.5×10-5kg.m² 2900N.m/rad 0.04mm 1c ±0.2mm 113
SG7-8-C50- 15N.m 30N.m 10000prm 8.2×10-5kg.m² 6700N.m/rad 0.04mm 1c ±0.2mm 195
SG7-8-C56- 25N.m 50N.m 10000prm 1×10-4kg.m² 8400N.m/rad 0.04mm 1c ±0.2mm 263
SG7-8-C68- 55N.m 110N.m 10000prm 1.9×10-4kg.m² 11500N.m/rad 0.04mm 1c ±0.2mm 445
SG7-8-C82- 80N.m 160N.m 10000prm 7×10-4kg.m² 14550N.m/rad 0.04mm 1c ±0.2mm 892
SG7-8-C94- 185N.m 370N.m 10000prm 1.23×10-3kg.m² 16900N.m/rad 0.04mm 1c ±0.2mm 950
SG7-8-C104- 255N.m 510N.m 10000prm 1.86×10-3kg.m² 25100N.m/rad 0.04mm 1c ±0.2mm 1190

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disc coupling

Industry Standards and Guidelines for Disc Couplings

Disc couplings, like other mechanical components, are subject to various industry standards and guidelines that ensure their safe and reliable operation. Some relevant standards include:

  • API Standard 671: This American Petroleum Institute (API) standard provides guidelines for special-purpose couplings for use in petroleum, chemical, and gas industry services. It covers the design, materials, testing, and inspection of couplings, including disc couplings.
  • AGMA Standard 9001: The American Gear Manufacturers Association (AGMA) standard 9001 addresses flexible couplings, including disc couplings, and provides recommendations for their design, installation, and maintenance.
  • ISO 14691: This International Organization for Standardization (ISO) standard covers general-purpose industrial couplings, including disc couplings, and provides guidance on their selection, installation, and operation.

Manufacturers and engineers often refer to these standards and guidelines to ensure that disc couplings are designed, manufactured, and used according to recognized industry practices. Adhering to these standards helps enhance the reliability, safety, and performance of disc couplings in various industrial applications.

disc coupling

Unique Construction of Disc Couplings for Vibration Dampening and Resonance Control

The distinctive construction of disc couplings plays a vital role in their ability to dampen vibrations and control resonance:

  • Flexible Disc Packs: Disc couplings consist of multiple thin metal discs stacked alternately. These discs are connected to the hub and spacer, creating a flexible structure that can absorb and dissipate vibrations.
  • Radial Compliance: The flexible discs allow for radial compliance, enabling the coupling to absorb misalignments and shocks, which helps prevent the transmission of vibrations.
  • Torsional Flexibility: The flexible nature of the disc packs provides torsional flexibility, allowing the coupling to absorb torsional vibrations and shocks that may arise from the machinery.
  • Resonance Damping: The design of disc couplings helps dampen resonant frequencies. The unique construction disperses energy across the flexible elements, reducing the risk of resonant vibration buildup.
  • Material Selection: The choice of materials for the discs plays a role in controlling resonance. The right combination of material properties can help mitigate the effects of resonance.

By efficiently absorbing and dissipating vibrations and controlling resonance, disc couplings contribute to smoother operation, reduced wear and tear on machinery components, and enhanced overall system performance.

disc coupling

Challenges and Solutions for Misaligned Disc Couplings

Misalignment in disc couplings can lead to several challenges, but these issues can be effectively addressed using appropriate measures:

  • Reduced Efficiency: Misalignment can cause increased friction and wear, leading to energy losses and reduced coupling efficiency. Regular maintenance and proper alignment can help mitigate this issue.
  • Vibration and Noise: Misalignment often results in vibrations and noise in the machinery. This can impact the overall performance of the system and cause discomfort to operators. Ensuring precise alignment and using vibration-damping solutions can minimize these effects.
  • Premature Wear: Disc couplings experiencing misalignment may wear out prematurely due to uneven loading and stress concentrations. Optimal alignment and using coupling models designed to handle misalignment can extend the coupling’s lifespan.
  • Imbalanced Loads: Misalignment can lead to imbalanced loads on the coupling discs, causing uneven stress distribution. This can lead to fatigue and failure. Using spacer elements between the discs and proper alignment can distribute the loads more evenly.
  • Reduced Accuracy: In applications requiring precision positioning, misaligned disc couplings can result in inaccurate measurements or positioning. Implementing accurate alignment practices and selecting couplings designed for precise applications can mitigate this challenge.
  • Temperature Rise: Misalignment-induced friction generates heat, leading to temperature rise in the coupling and adjacent components. This can potentially affect the material properties and lead to premature wear. Proper alignment and selecting appropriate lubrication can manage temperature rise.

Addressing misalignment challenges involves a combination of careful installation, routine maintenance, alignment checks, and using coupling designs that offer flexibility and resilience to misalignment. Regular monitoring and addressing misalignment issues promptly can help ensure the longevity and optimal performance of disc couplings.

China Good quality Disc Coupling Manufacturers Shaft Propeller Disk-Type Flexible Coupling  China Good quality Disc Coupling Manufacturers Shaft Propeller Disk-Type Flexible Coupling
editor by CX 2024-02-06