China Best Sales High Quality and Torque Double Disc Type for Motors Shaft Flexible Coupling

Product Description

Item No. φD L W L1 L2 M Tighten the strength(N.m)
SG7-8-C19-WPY 19.5 27 1.2 9.4 5.8 M2.5 1
SG7-8-C26-WPY 26 35 2.5 11.5 7 M3 1.5
SG7-8-C34-WPY 34 45 3.3 14.5 9.4 M4 1.5
SG7-8-C39-WPY 39 49 4.1 15 10.8 M4 2.5
SG7-8-C44-WPY 44 50 4.5 15 11 M4 2.5
SG7-8-C50-WPY 50 57 4.5 18 12 M5 7
SG7-8-C56-WPY 56 63 5 20 13 M5 7
SG7-8-C68-WPY 68 74 6 24 14 M6 12
SG7-8-C82-WPY 82 98 8 30 22 M8 16
SG7-8-C94-WPY 94 98 8 30 22 M8 28
SG7-8-C104-WPY 104 102 10 30 22 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-WPY 1N.m 2N.m 10000prm 0.9×10-6kg.m² 170N.m/rad 0.04mm 1.5c ±0.4mm 16
SG7-8-C26-WPY 1.4N.m 2.8N.m 10000prm 3.3×10-6kg.m² 950N.m/rad 0.04mm 1.5c ±0.4mm 40.5
SG7-8-C34-WPY 2.8N.m 5.6N.m 10000prm 8.9×10-6kg.m² 1960N.m/rad 0.04mm 1.5c ±0.4mm 92
SG7-8-C39-WPY 5.8N.m 11.6N.m 10000prm 2.4×10-5kg.m² 4500N.m/rad 0.04mm 1.5c ±0.4mm 128
SG7-8-C44-WPY 8.7N.m 17.4N.m 10000prm 3.2×10-5kg.m² 5100N.m/rad 0.04mm 1.5c ±0.4mm 159
SG7-8-C50-WPY 15N.m 30N.m 10000prm 7.8×10-5kg.m² 8700N.m/rad 0.04mm 1.5c ±0.4mm 260
SG7-8-C56-WPY 25N.m 50N.m 10000prm 1.1×10-4kg.m² 10500N.m/rad 0.04mm 1.5c ±0.4mm 346
SG7-8-C68-WPY 55N.m 110N.m 10000prm 2.8×10-4kg.m² 18500N.m/rad 0.04mm 1.5c ±0.4mm 580
SG7-8-C82-WPY 80N.m 160N.m 10000prm 1×10-3kg.m² 21800N.m/rad 0.04mm 1.5c ±0.4mm 1156
SG7-8-C94-WPY 185N.m 370N.m 10000prm 1.76×10-3kg.m² 84500N.m/rad 0.04mm 1.5c ±0.4mm 1493
SG7-8-C104-WPY 255N.m 510N.m 10000prm 1.86×10-3kg.m² 125500N.m/rad 0.04mm 1.5c ±0.4mm 1600

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flexible coupling

What are the maintenance-free options available for flexible couplings?

Several maintenance-free options are available for flexible couplings, designed to reduce or eliminate the need for regular maintenance and lubrication. These options offer long-lasting performance and reliability while minimizing downtime and operational costs. Below are some maintenance-free options for flexible couplings:

1. Maintenance-Free Elastomeric Couplings: Elastomeric couplings with a specific design and materials can be maintenance-free. These couplings often incorporate high-quality elastomeric elements that do not require periodic lubrication. The elastomeric material provides damping of shocks and vibrations and allows for misalignment compensation, making them suitable for various applications without the need for regular maintenance.

2. Non-Lubricated Metallic Couplings: Some metallic couplings are designed to operate without the need for lubrication. These couplings use self-lubricating materials or specialized coatings that reduce friction between moving parts, eliminating the need for manual lubrication. They can handle high torque and speed requirements while providing reliable performance over extended periods without maintenance.

3. Pre-Lubricated Couplings: Certain flexible couplings come pre-lubricated during manufacturing. These couplings have grease or lubricant already applied to the critical components, providing sufficient lubrication for an extended period of operation. As a result, users do not need to perform regular lubrication maintenance, reducing maintenance tasks and associated costs.

4. Sealed Couplings: Some flexible couplings are designed with integrated seals or shields that protect internal components from contaminants and prevent lubricant leakage. These sealed couplings are inherently maintenance-free, as they ensure long-lasting performance without the need for external maintenance or re-lubrication.

5. Non-Wearing Materials: Certain flexible couplings are constructed using non-wearing materials, such as high-performance polymers. These materials offer excellent resistance to wear and abrasion, reducing the need for maintenance and replacement due to wear-related issues.

6. Torque-Responsive Couplings: Some maintenance-free couplings are designed to disengage or slip when the torque exceeds a certain threshold. This feature protects the connected equipment from excessive loads, preventing damage and reducing the need for maintenance or repairs caused by overload conditions.

Summary: Maintenance-free options for flexible couplings are available, offering reliable and long-lasting performance without the need for regular maintenance and lubrication. These couplings utilize specialized materials, designs, and features to handle various operating conditions while minimizing downtime and operational costs. Selecting a maintenance-free coupling that suits the specific application requirements can significantly improve the overall efficiency and reliability of the mechanical system.

flexible coupling

What are the challenges of using flexible couplings in heavy-duty industrial machinery?

Using flexible couplings in heavy-duty industrial machinery can offer numerous benefits, such as reducing shock loads, accommodating misalignment, and protecting connected equipment. However, there are several challenges that need to be addressed to ensure successful and reliable performance:

  • Torsional Stiffness: Heavy-duty machinery often requires high torsional stiffness to maintain accurate rotational timing and prevent energy losses. Selecting a flexible coupling with the appropriate level of torsional stiffness is crucial to avoid excessive torsional deflection and maintain power transmission efficiency.
  • High Torque and Speed: Heavy-duty machinery typically operates at high torque and speed levels. The flexible coupling must be capable of handling these intense loads without exceeding its torque or speed ratings, which could lead to premature failure.
  • Alignment and Runout: Proper shaft alignment is critical for the reliable operation of flexible couplings in heavy-duty machinery. Misalignment can cause additional stresses and premature wear on the coupling and connected components. Achieving and maintaining precise alignment is essential to maximize coupling performance.
  • Environmental Conditions: Heavy-duty industrial machinery often operates in harsh environments with exposure to dust, dirt, chemicals, and extreme temperatures. Flexible couplings must be constructed from durable and corrosion-resistant materials to withstand these conditions and maintain their functionality over time.
  • Impact and Shock Loads: Some heavy-duty machinery may experience frequent impact and shock loads, which can lead to fatigue and failure in the flexible coupling. Choosing a coupling with high shock load capacity and fatigue resistance is vital to ensure longevity and reliability.
  • Regular Maintenance: Heavy-duty machinery demands rigorous maintenance schedules to monitor the condition of flexible couplings and other components. Timely inspection and replacement of worn or damaged couplings are essential to prevent unexpected downtime and costly repairs.
  • Coupling Selection: Properly selecting the right type of flexible coupling for the specific application is crucial. Different types of couplings offer varying levels of misalignment compensation, torque capacity, and environmental resistance. Choosing the wrong coupling type or size can lead to inefficiencies and premature failures.

Despite these challenges, using flexible couplings in heavy-duty industrial machinery can provide significant advantages. By carefully considering the application requirements, selecting high-quality couplings, and implementing regular maintenance protocols, engineers can overcome these challenges and enjoy the benefits of flexible couplings, including increased equipment lifespan, reduced maintenance costs, and improved overall system performance.

flexible coupling

Are there any safety considerations when using flexible couplings in rotating machinery?

Yes, there are several safety considerations to keep in mind when using flexible couplings in rotating machinery. While flexible couplings offer numerous benefits in terms of misalignment compensation, vibration isolation, and shock absorption, improper use or maintenance can lead to safety hazards. Here are some important safety considerations:

  • Proper Installation: Ensure that the flexible coupling is installed correctly and securely following the manufacturer’s guidelines. Improper installation can lead to coupling failure, unexpected disconnection, or ejection of coupling components, which may result in equipment damage or injury to personnel.
  • Alignment: Proper shaft alignment is essential for the reliable and safe operation of flexible couplings. Misaligned shafts can cause excessive stress on the coupling and connected components, leading to premature wear and possible failure. Regularly check and maintain proper shaft alignment to prevent safety risks.
  • Operating Conditions: Consider the environmental and operating conditions of the machinery when selecting a flexible coupling. Some couplings are designed for specific temperature ranges, hazardous environments, or corrosive atmospheres. Using a coupling that is not suitable for the operating conditions can compromise safety and performance.
  • Torque and Speed Limits: Always operate the flexible coupling within its specified torque and speed limits. Exceeding these limits can cause coupling failure, leading to unexpected downtime, equipment damage, and potential safety hazards.
  • Maintenance: Regularly inspect and maintain the flexible coupling to ensure its continued safe operation. Check for signs of wear, damage, or corrosion, and promptly replace any worn or damaged components with genuine parts from the manufacturer.
  • Emergency Stop Mechanism: In applications where safety is critical, consider implementing an emergency stop mechanism to quickly halt machinery operation in case of coupling failure or other emergencies.
  • Personal Protective Equipment (PPE): When working with rotating machinery or during maintenance tasks involving couplings, personnel should wear appropriate PPE, such as gloves, eye protection, and clothing that can resist entanglement hazards.
  • Training and Awareness: Ensure that personnel working with the machinery understand the potential hazards associated with flexible couplings and receive proper training on safe handling, installation, and maintenance procedures.

By adhering to these safety considerations, operators and maintenance personnel can mitigate potential risks and ensure the safe and reliable operation of rotating machinery with flexible couplings. Additionally, it is essential to comply with relevant safety standards and regulations specific to the industry and application to ensure a safe working environment.

China Best Sales High Quality and Torque Double Disc Type for Motors Shaft Flexible Coupling  China Best Sales High Quality and Torque Double Disc Type for Motors Shaft Flexible Coupling
editor by CX 2024-03-27

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