Product Description
GL Aluminum alloy double diaphragm clamping coupling
Description of GL Aluminum alloy double diaphragm clamping coupling
>High torque rigidity, can accurately control the rotation of the shaft, can carry out high-precision control
>Designed for servo and stepping motor
>No gap between the shaft and sleeve connection, general for positive and negative rotation
>Low inertia, suitable for high speed operation
>The diaphragm is made of spring steel with excellent fatigue resistance
>Fastening method of clamping screw
Dimensions of GL Aluminum alloy double diaphragm clamping coupling
| model parameter | common bore diameter d1,d2 | ΦD | L | LF | LP | d3 | S | F | M | tightening screw torque (N.M) |
| GL-19X27 | 3,4,5,6,6.35,7,8 | 19 | 27 | 9.1 | 5.2 | Φ9 | 1.8 | 3.3 | M2.5 | 1 |
| GL-26X35 | 5,6,6.35,7,8,9,9.525,10,11,12,14 | 26 | 35 | 11.65 | 6.5 | Φ12.5 | 2.6 | 3.9 | M3 | 1.5 |
| GL-32X41 | 5,6,6.35,7,8,9,9.525,10,11,12,12.7,14,15, | 32 | 45 | 12.25 | 9.5 | Φ15 | 3.5 | 3.85 | M3 | 1.5 |
| GL-34X45 | 5,6,6.35,7,8,9,9.525,10,11,12,12.7,14,15,16 | 34 | 45 | 14.25 | 9.5 | Φ16 | 4.5 | 4.85 | M4 | 2.5 |
| GL-39X50 | 8,9,9.525,10,11,12,12.7,14,15,16,17,18,19 | 39 | 50 | 14.9 | 11.2 | Φ9.3 | 4.5 | 5 | M4 | 2.5 |
| GL-44X50 | 8,9,9.525,10,11,12,12.7,14,15,16,17,18,19,20,22 | 44 | 50 | 14.9 | 11.2 | Φ2.5 | 4.5 | 5 | M4 | 2.5 |
| GL-50X63 | 8,9,9.525,10,11,12,12.7,14,15,16,17,18,19,20,22,24,25 | 50 | 63 | 20.6 | 12.5 | Φ23 | 4.8 | 6 | M5 | 7 |
| GL-56X64 | 10,12,14,15,16,17,18,19,20,22,24,25,28,30,32 | 56 | 64 | 19.75 | 13.5 | Φ2.5 | 5.5 | 6.4 | M5 | 7 |
| GL-68X75 | 12,14,15,16,17,18,19,20,22,24,25,28,30,32,35,38 | 68 | 75 | 23.35 | 15.7 | Φ38.3 | 6.3 | 7.7 | M6 | 12 |
| GL-82X98 | 17,18,19,20,22,24,25,28,30,32,35,38,40,42 | 82 | 98 | 30 | 22 | Φ45.5 | 8 | 9.7 | M8 | 20 |
| model parameter | Rated torque (N.M)* |
allowable eccentricity (mm)* |
allowable deflection angle (°)* |
allowable axial deviation (mm)* |
maximum speed rpm |
static torsional stiffness (N.M/rad) |
moment of inertia (Kg.M2) |
Material of shaft sleeve | Material of shrapnel | surface treatment | weight (g) |
| GL-19X27 | 1 | 0.12 | 1.5 | ±0.18 | 10000 | 170 | 9.1×10-7 | High strength aluminum alloy | SUS304Spring steel | Anodizing treatment | 14.6 |
| GL-26X35 | 1.5 | 0.15 | 1.5 | ±0.3 | 10000 | 820 | 3.0×10-6 | 37 | |||
| GL-32X41 | 2 | 0.17 | 1.5 | ±0.36 | 10000 | 1750 | 1.0×10-5 | 67 | |||
| GL-34X45 | 3 | 0.17 | 1.5 | ±0.36 | 10000 | 1860 | 1.1×10-5 | 77 | |||
| GL-39X50 | 6 | 0.22 | 1.5 | ±0.45 | 10000 | 2860 | 3.0×10-5 | 118 | |||
| GL-44X50 | 9 | 0.22 | 1.5 | ±0.54 | 10000 | 3300 | 3.8×10-5 | 144 | |||
| GL-50X63 | 18 | 0.1 | 1.5 | ±0.54 | 10000 | 3300 | 3.0×10-5 | 235 | |||
| GL-56X64 | 25 | 0.27 | 1.5 | ±0.72 | 10000 | 9480 | 1.6×10-4 | 318 | |||
| GL-68X75 | 60 | 0.31 | 1.5 | ±0.8 | 9000 | 19000 | 2.0×10-4 | 492 | |||
| GL-82X98 | 100 | 0.55 | 1.5 | ±0.8 | 8000 | 28450 | 2.5×10-4 | 1013 |
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Can Diaphragm Couplings Compensate for Axial, Angular, and Parallel Misalignments?
Yes, diaphragm couplings are designed to compensate for axial, angular, and parallel misalignments between two shafts, making them highly flexible and versatile for various mechanical systems. Here’s how diaphragm couplings handle each type of misalignment:
- Axial Misalignment:
- Angular Misalignment:
- Parallel Misalignment:
Diaphragm couplings can accommodate a limited amount of axial misalignment, which refers to the offset between the rotational axes of the connected shafts. The flexible diaphragm allows for a slight axial movement, ensuring that the coupling can handle minor misalignments without introducing significant additional stresses to the shafts or coupling components.
Diaphragm couplings can also compensate for angular misalignment, which occurs when the rotational axes of the shafts are not parallel. The flexibility of the diaphragm allows it to flex and bend, allowing the coupling to transmit torque efficiently even when the shafts are at an angle to each other.
Parallel misalignment refers to the lateral offset between the shafts in the same plane. Diaphragm couplings can accommodate a certain degree of parallel misalignment due to the flexibility of the diaphragm. This feature helps prevent binding or premature wear on the coupling and connected machinery.
Diaphragm couplings are specifically designed to handle misalignments while maintaining smooth and efficient torque transmission. The flexibility of the diaphragm allows it to compensate for these misalignments, reducing stress on the connected equipment and providing a more reliable power transmission solution.
It’s important to note that while diaphragm couplings can accommodate some misalignments, there are limits to the amount of misalignment they can compensate for. Excessive misalignments beyond the coupling’s specified tolerances can lead to reduced coupling performance, premature wear, and potential failure. Therefore, it is essential to follow the manufacturer’s guidelines and recommendations for allowable misalignments to ensure optimal performance and longevity of the diaphragm coupling in a given application.
Can Diaphragm Couplings Reduce Noise and Dampen Vibrations in Mechanical Systems?
Yes, diaphragm couplings can help reduce noise and dampen vibrations in mechanical systems. The design and material properties of diaphragm couplings contribute to their ability to minimize vibrations and noise during operation. Here’s how diaphragm couplings achieve this:
- Vibration Dampening:
- Misalignment Compensation:
- Reduced Mechanical Resonance:
- Smooth Torque Transmission:
- Compact Design:
Diaphragm couplings are designed to be flexible and allow a controlled amount of movement between the connected shafts. This flexibility helps dampen vibrations generated during the operation of rotating machinery. When vibrations occur due to load changes or misalignments, the diaphragm absorbs and dissipates these vibrations, preventing them from propagating through the system. As a result, diaphragm couplings can contribute to a smoother and quieter operation of mechanical systems.
As mentioned earlier, diaphragm couplings can accommodate axial, angular, and parallel misalignments between the connected shafts. Misalignment in rotating machinery can lead to increased vibrations and noise. By effectively compensating for misalignment, diaphragm couplings help maintain proper shaft alignment, reducing the risk of vibration-related issues and associated noise.
Mechanical resonance occurs when the natural frequency of a system matches the excitation frequency. It can lead to amplified vibrations and noise. Diaphragm couplings, with their ability to dampen vibrations, can help reduce the occurrence of mechanical resonance in rotating systems. By preventing the build-up of excessive vibrations, diaphragm couplings minimize the likelihood of resonance-related problems.
Diaphragm couplings provide smooth torque transmission between the shafts, resulting in a more uniform and stable power transfer. When torque is transmitted smoothly, there is less likelihood of sudden torque fluctuations that can cause vibrations and noise. The controlled flexibility of the diaphragm ensures that torque is transmitted efficiently, without introducing undesirable harmonics or disturbances in the system.
Diaphragm couplings have a compact and lightweight design compared to some other coupling types, such as gear couplings. This reduced mass and size help minimize inertial forces during operation, leading to lower levels of vibration and noise.
Overall, diaphragm couplings are effective in reducing noise and dampening vibrations in mechanical systems, making them suitable for applications where noise reduction and smooth operation are essential. Their ability to handle misalignments, dampen vibrations, and transmit torque accurately contributes to improved performance and reliability in various industrial settings.
What is a Diaphragm Coupling and How Does it Function in Mechanical Systems?
A diaphragm coupling is a type of flexible coupling used in mechanical systems to transmit torque between two shafts that are slightly misaligned. It consists of two hubs, each attached to a shaft, and a flexible diaphragm in between.
The function of a diaphragm coupling is to accommodate misalignment while transmitting torque smoothly and efficiently. Here’s how it works:
- Torsional Flexibility: The diaphragm, typically made of metal, is designed with a series of corrugations or convolutions. These corrugations allow the diaphragm to flex and bend in response to shaft misalignment.
- Transmitting Torque: When torque is applied to one shaft, it gets transferred to the diaphragm, which then flexes to accommodate any angular, parallel, or axial misalignment between the shafts.
- Maintaining Alignment: As the diaphragm flexes, it maintains a constant connection between the two hubs and ensures that the rotational motion is smoothly transferred from one shaft to the other.
- No Lubrication: Diaphragm couplings do not require any lubrication, making them low-maintenance and suitable for various applications.
- High Torque Capacity: Despite their flexibility, diaphragm couplings can handle high torque loads, making them ideal for demanding mechanical systems.
- Vibration Damping: The flexibility of the diaphragm also helps in dampening vibrations, reducing the risk of damage to connected machinery.
- Compensation for Misalignment: Diaphragm couplings can compensate for angular, parallel, and axial misalignment, although their angular misalignment capacity is typically higher than the other types.
In summary, a diaphragm coupling provides a reliable and efficient way to transmit torque while accommodating misalignment, reducing wear and tear on equipment, and ensuring smooth operation in various mechanical systems.
editor by CX 2024-05-07