China OEM Good Price Disk Type Single Disk Flexible Couplings

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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flexible coupling

What are the real-world applications of flexible couplings in various industries?

Flexible couplings are widely used in a variety of industries to transmit power and motion between rotating shafts while accommodating misalignments and reducing vibrations. Some of the real-world applications of flexible couplings include:

  • Industrial Machinery: Flexible couplings are extensively used in industrial machinery such as pumps, compressors, fans, mixers, and conveyors. They help transmit power from motors to driven equipment, while absorbing misalignments and reducing shock loads and vibrations.
  • Automotive: In the automotive industry, flexible couplings are used in various applications, including drive shafts, steering systems, and engine accessories. They help transmit power and motion while allowing for misalignment and reducing torsional vibrations.
  • Aerospace: In aircraft and aerospace applications, flexible couplings are used in engine systems, landing gear, and flight control systems. They provide reliable power transmission while accommodating misalignment and reducing vibrations in the demanding aerospace environment.
  • Marine: Flexible couplings are used in marine propulsion systems to connect the engine to the propeller shaft. They help transmit power and motion while compensating for shaft misalignment and reducing vibrations in marine vessels.
  • Renewable Energy: In wind turbines and solar tracking systems, flexible couplings are used to transfer power and motion between the turbine or solar panel and the generator. They allow for misalignment caused by wind and sun direction changes, ensuring optimal energy conversion.
  • Oil and Gas: In the oil and gas industry, flexible couplings are used in pumps, compressors, and drilling equipment. They provide reliable power transmission while accommodating misalignments and reducing vibrations in harsh and demanding oilfield environments.
  • Mining and Construction: Flexible couplings are used in heavy-duty mining and construction equipment, including excavators, bulldozers, and loaders. They help transmit power from engines to drive systems while compensating for misalignments and reducing vibrations in rugged and challenging environments.
  • Food and Beverage: In food processing and packaging machinery, flexible couplings are used to transmit power and motion while meeting strict hygiene and safety requirements. They help prevent contamination while accommodating shaft misalignments.
  • Medical Equipment: Flexible couplings are used in medical devices and equipment, including imaging machines and robotic surgical systems. They help transmit motion and power while reducing vibrations and maintaining precision.
  • Textile Industry: In textile manufacturing machines, flexible couplings are used in spinning, weaving, and dyeing processes. They help transmit power efficiently while accommodating misalignments and reducing vibrations during high-speed operation.

These are just a few examples of the diverse applications of flexible couplings in various industries. Their ability to enhance power transmission efficiency, accommodate misalignments, and reduce vibrations makes them a versatile and indispensable component in modern machinery and equipment.

flexible coupling

How does a flexible coupling handle torsional vibrations in rotating machinery?

A flexible coupling is designed to handle torsional vibrations in rotating machinery by providing a degree of flexibility and damping. Torsional vibrations are oscillations that occur in the drivetrain due to torque variations, sudden load changes, or other transient events. These vibrations can lead to resonance, excessive stress, and premature failure of components.

Flexible couplings mitigate torsional vibrations through the following mechanisms:

  • Torsional Compliance: Flexible couplings have an element, such as an elastomeric insert, that can deform or twist to absorb torsional shocks. When the drivetrain experiences torsional vibrations, the flexible element flexes, effectively isolating and dampening the vibrations before they propagate further.
  • Damping: Many flexible couplings have inherent damping properties, especially those with elastomeric components. Damping dissipates the energy of the torsional vibrations, reducing their amplitude and preventing resonance from occurring.
  • Tuned Design: Some flexible couplings are specifically designed with specific torsional characteristics to match the drivetrain’s requirements. By tuning the coupling’s stiffness and damping properties, engineers can ensure optimal torsional vibration control.
  • Torsional Stiffness: While flexible couplings provide flexibility to absorb vibrations, they also offer a degree of torsional stiffness to maintain the torque transmission efficiency between the shafts.

It is important to select the appropriate flexible coupling based on the specific torsional characteristics and requirements of the rotating machinery. Different applications may demand different types of couplings with varying levels of flexibility and damping. High-performance flexible couplings can effectively minimize torsional vibrations, protecting the drivetrain and connected equipment from excessive stress and potential damage.

Additionally, proper alignment of the flexible coupling during installation is crucial to ensure its optimal performance in mitigating torsional vibrations. Misalignment can introduce additional stresses and exacerbate torsional issues in the system. Regular inspection and maintenance of the flexible coupling will help identify any signs of wear or damage that may affect its ability to handle torsional vibrations effectively.

flexible coupling

What are the advantages of using flexible couplings in mechanical systems?

Flexible couplings offer several advantages in mechanical systems, making them essential components in various applications. Here are the key advantages of using flexible couplings:

  • Misalignment Compensation: One of the primary advantages of flexible couplings is their ability to compensate for shaft misalignment. In mechanical systems, misalignment can occur due to various factors such as installation errors, thermal expansion, or shaft deflection. Flexible couplings can accommodate angular, parallel, and axial misalignment, ensuring smooth power transmission and reducing stress on the connected equipment and shafts.
  • Vibration Damping: Flexible couplings act as damping elements, absorbing and dissipating vibrations and shocks generated during operation. This feature helps to reduce noise, protect the equipment from excessive wear, and enhance overall system reliability and performance.
  • Torsional Flexibility: Flexible couplings provide torsional flexibility, allowing them to handle slight angular and axial deflections. This capability protects the equipment from sudden torque fluctuations, shock loads, and torque spikes, ensuring smoother operation and preventing damage to the machinery.
  • Overload Protection: In case of sudden overloads or torque spikes, flexible couplings can absorb and distribute the excess torque, protecting the connected equipment and drivetrain from damage. This overload protection feature prevents unexpected failures and reduces downtime in critical applications.
  • Reduce Wear and Maintenance: By compensating for misalignment and damping vibrations, flexible couplings help reduce wear on the connected equipment, bearings, and seals. This results in extended component life and reduced maintenance requirements, leading to cost savings and improved system reliability.
  • Compensation for Thermal Expansion: In systems exposed to temperature variations, flexible couplings can compensate for thermal expansion and contraction, maintaining proper alignment and preventing binding or excessive stress on the equipment during temperature changes.
  • Electric Isolation: Some types of flexible couplings, such as disc couplings, offer electrical isolation between shafts. This feature is beneficial in applications where galvanic corrosion or electrical interference between connected components needs to be minimized.
  • Space and Weight Savings: Flexible couplings often have compact designs and low inertia, which is advantageous in applications with space constraints and where minimizing weight is crucial for performance and efficiency.
  • Cost-Effectiveness: Flexible couplings are generally cost-effective solutions for power transmission and motion control, especially when compared to more complex and expensive coupling types. Their relatively simple design and ease of installation contribute to cost savings.

In summary, flexible couplings play a vital role in mechanical systems by providing misalignment compensation, vibration damping, overload protection, and torsional flexibility. These advantages lead to improved system performance, reduced wear and maintenance, and enhanced equipment reliability, making flexible couplings a preferred choice in various industrial, automotive, marine, and aerospace applications.

China OEM Good Price Disk Type Single Disk Flexible Couplings  China OEM Good Price Disk Type Single Disk Flexible Couplings
editor by CX 2024-04-16

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