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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How does a flexible coupling contribute to the longevity of connected equipment?
A flexible coupling plays a crucial role in enhancing the longevity of connected equipment in various ways. It acts as a mechanical interface between two shafts, connecting them while accommodating misalignment, dampening vibrations, and transmitting torque. Here’s how a flexible coupling contributes to the longevity of connected equipment:
- Misalignment Compensation: One of the primary functions of a flexible coupling is to compensate for both angular and parallel misalignment between two shafts. Misalignment can occur due to various factors, including thermal expansion, assembly errors, or settling of foundation, which can exert excessive stress on the connected equipment. By allowing misalignment, the flexible coupling reduces the stress transmitted to the shafts and connected components, preventing premature wear and failure.
- Shock and Vibration Dampening: Flexible couplings are designed to absorb shocks and dampen vibrations that occur during operation. Vibrations and shocks can be detrimental to connected equipment, leading to fatigue, wear, and premature failure of components. The coupling acts as a buffer, reducing the impact of vibrations and protecting the equipment from potential damage.
- Reduced Stress Concentration: A rigid coupling can create stress concentration points on the shafts, leading to fatigue and cracking over time. Flexible couplings distribute the load more evenly along the shafts, reducing stress concentration and minimizing the risk of failure.
- Transmitting Torque Smoothly: Flexible couplings transmit torque from one shaft to another smoothly, without introducing sudden torque spikes or shocks. This even torque transfer prevents sudden loading on connected equipment, minimizing the risk of damage or accelerated wear on gears, bearings, and other components.
- Controlling Torsional Vibrations: In systems where torsional vibrations are a concern, certain types of flexible couplings are designed to address this issue. These couplings help control torsional vibrations, which can be damaging to the equipment and cause premature failure.
- Thermal Expansion Compensation: When the equipment operates at different temperatures, thermal expansion can lead to misalignment between the shafts. A flexible coupling can accommodate the thermal expansion, ensuring that the connected equipment remains aligned and preventing stress on the components.
- Isolation from External Forces: External forces like impact loads or shaft disturbances can affect the connected equipment. A flexible coupling isolates the equipment from these external forces, protecting it from potential damage.
By providing these essential functions, a flexible coupling helps extend the lifespan of connected equipment by reducing wear and tear, preventing premature failures, and ensuring smooth, reliable operation. The longevity of the connected equipment ultimately results in reduced maintenance costs and increased productivity.
Can flexible couplings accommodate both radial and axial loads simultaneously?
Yes, flexible couplings are designed to accommodate both radial and axial loads simultaneously, making them versatile for various mechanical systems. The ability to handle these loads is one of the key advantages of using flexible couplings in power transmission applications. Here’s how they manage both types of loads:
- Radial Loads: Radial loads act perpendicular to the shaft’s axis and can arise from forces that are not in line with the shaft, such as belt tension or bearing loads. Flexible couplings can handle radial loads due to their flexibility and ability to bend or deform slightly, redistributing the radial forces and minimizing the impact on the connected equipment.
- Axial Loads: Axial loads act along the shaft’s axis and are common in applications with thrust forces or axial movements. Flexible couplings can accommodate axial loads through their axial flexibility, allowing slight axial displacement without transmitting excessive forces to the connected components.
- Angular Misalignment: Besides radial and axial loads, flexible couplings can also handle angular misalignment between the shafts. Angular misalignment occurs when the shafts are not perfectly aligned, and flexible couplings can compensate for this misalignment, reducing wear and stress on the connected machinery.
By accommodating both radial and axial loads, flexible couplings help prevent premature wear, reduce the risk of equipment damage, and contribute to smoother and more efficient power transmission. When selecting a flexible coupling for an application, it is essential to consider the expected radial and axial loads, as well as the required level of misalignment compensation to ensure optimal performance and longevity of the coupling and the connected equipment.
Can flexible couplings handle misalignment between shafts?
Yes, flexible couplings are specifically designed to handle misalignment between shafts in rotating machinery and mechanical systems. Misalignment can occur due to various factors, including installation errors, thermal expansion, manufacturing tolerances, or shaft deflection during operation.
Flexible couplings offer the ability to compensate for different types of misalignment, including:
- Angular Misalignment: When the shafts are not collinear and have an angular offset, flexible couplings can accommodate this misalignment by flexing or twisting, allowing the two shafts to remain connected while transmitting torque smoothly.
- Parallel Misalignment: Parallel misalignment occurs when the two shafts are not perfectly aligned along their axes. Flexible couplings can adjust to this misalignment, ensuring that the shafts remain connected and capable of transmitting power efficiently.
- Axial Misalignment: Axial misalignment, also known as end float or axial displacement, refers to the relative axial movement of the two shafts. Some flexible coupling designs can accommodate axial misalignment, allowing for slight axial movements without disengaging the coupling.
The ability of flexible couplings to handle misalignment is essential in preventing premature wear and failure of the connected equipment. By compensating for misalignment, flexible couplings reduce the stress on the shafts, bearings, and seals, extending the service life of these components and improving overall system reliability.
It is crucial to select the appropriate type of flexible coupling based on the specific misalignment requirements of the application. Different coupling designs offer varying degrees of misalignment compensation, and the choice depends on factors such as the magnitude and type of misalignment, the torque requirements, and the operating environment.
In summary, flexible couplings play a vital role in handling misalignment between shafts, ensuring efficient power transmission and protecting mechanical systems from the adverse effects of misalignment. Their ability to accommodate misalignment makes them indispensable components in various industrial, automotive, aerospace, and marine applications.
editor by CX 2024-03-15