Product Description
GFC Type Flexible Shaft Coupling GFC-25X30
GFC Type Flexible Shaft Coupling GFC-25X30
| model parameter | common bore diameter d1,d2 | ΦD | L | LF | LP | F | M | tightening screw torque (N.M) |
| GFC-14X22 | 3,4,5,6,6.35 | 14 | 22 | 14.3 | 6.6 | 5.0 | M2.5 | 1.0 |
| GFC-20×25 | 3,4,5,6,6.35,7,8,9,9.525,10 | 20 | 25 | 16.7 | 8.6 | 5.9 | M3 | 1.5 |
| GFC-20X30 | 3,4,5,6,6.35,7,8,9,9.525,10 | 20 | 30 | 19.25 | 8.6 | 5.9 | M3 | 1.5 |
| GFC-25X30 | 4,5,6,6.35,7,8,9,9.525,10,11,12 | 25 | 30 | 20.82 | 11.6 | 8.5 | M4 | 2.5 |
| GFC-25X34 | 4,5,6,6.35,7,8,9,9.525,10,11,12 | 25 | 34 | 22.82 | 11.6 | 8.5 | M4 | 2.5 |
| GFC-30×35 | 5,6,6.35,7,8,9,10,11,12,12.7,14,15,16 | 30 | 35 | 23 | 11.5 | 10 | M4 | 2.5 |
| GFC-30X40 | 5,6,6.35,7,8,9,10,11,12,12.7,14,15,16 | 30 | 40 | 25 | 11.5 | 10 | M4 | 2.5 |
| GFC-40X50 | 6,8,9,10,11,12,12.7,14,15,16,17,18,19,20,22,24 | 40 | 50 | 32.1 | 14.5 | 14 | M5 | 7 |
| GFC-40X55 | 6,8,9,10,11,12,12.7,14,15,16,17,18,19,20,22,24 | 40 | 55 | 34.5 | 14.5 | 14 | M5 | 7 |
| GFC-40X66 | 6,8,910,11,12,12.7,14,15,16,17,18,19,20,22,24 | 40 | 66 | 40 | 14.5 | 14 | M5 | 7 |
| GFC-55X49 | 10,11,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32 | 55 | 49 | 32 | 16.1 | 13.5 | M6 | 12 |
| GFC-55X78 | 8,10,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32 | 55 | 78 | 46.4 | 16.1 | 19 | M6 | 12 |
| GFC-65X80 | 14,15,16,17,18,19,20,22,24,25,28,30,32,35,38,40 | 65 | 80 | 48.5 | 17.3 | 14 | M8 | 20 |
| GFC-65X90 | 14,15,16,17,18,19,20,22,24,25,28,30,32,35,38,40 | 65 | 90 | 53.5 | 17.3 | 22.5 | M8 | 20 |
| GFC-80X114 | 19,20,22,24,25,28,30,32,35,38,40,42,45 | 80 | 114 | 68 | 22.5 | 16 | M8 | 20 |
| GFC-95X126 | 19,20,22,24,25,28,30,32,35,38,40,42,45,50,55 | 95 | 126 | 74.5 | 24 | 18 | M10 | 30 |
| 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) |
| GFC-14X22 | 5.0 | 0.1 | 1 | ±02 | 10000 | 50 | 1.0×10-6 | High strength aluminum alloy | Polyurethane imported from Germany | Anodizing treatment | 10 |
| GFC-20X25 | 5.0 | 0.1 | 1 | ±02 | 10000 | 50 | 1.0×10-6 | 15 | |||
| GFC-20X30 | 5.0 | 0.1 | 1 | ^02 | 10000 | 53 | 1.1×10-6 | 19 | |||
| GFC-25X30 | 10 | 0.1 | 1 | 10000 | 90 | 5.2X10-6 | 33 | ||||
| GFC-25X34 | 10 | 0.1 | 1 | £)2 | 10000 | 90 | 5.2×10-6 | 42 | |||
| GFC-30X35 | 12.5 | 0.1 | 1 | ±02 | 10000 | 123 | 6.2×10-6 | 50 | |||
| GFC-30×40 | 12.5 | 0.1 | 1 | 102 | 10000 | 123 | 6.2×10-6 | 60 | |||
| GFC-40X50 | 17 | 0.1 | 1 | 8000 | 1100 | 3.8×10-5 | 115 | ||||
| GFC-40X55 | 17 | 0.1 | 1 | ±02 | 8000 | 1100 | 3.8×10-5 | 127 | |||
| GFC-40X66 | 17 | 0.1 | 1 | 7000 | 1140 | 3.9×10-5 | 154 | ||||
| GFC-55X49 | 45 | 0.1 | 1 | ±02 | 6500 | 2350 | 1.6×10-3 | 241 | |||
| GFC-55X78 | 45 | 0.1 | 1 | 102 | 6000 | 2500 | 1.6×10-3 | 341 | |||
| GFC-65X80 | 108 | 0.1 | 1 | ±02 | 5500 | 4500 | 3.8×10-3 | 433 | |||
| GFC-65X90 | 108 | 0.1 | 1 | ±02 | 5500 | 4800 | 3.8×10-3 | 583 | |||
| GFC-80X114 | 145 | 0.1 | 1 | £)2 | 4500 | 5000 | 1.8×10-3 | 1650 | |||
| GFC-95X126 | 250 | 0.1 | 1 | ±02 | 4000 | 5000 | 2.0×10-3 | 1000 |
/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
How do you install and align a flexible coupling properly to ensure optimal performance?
Proper installation and alignment of a flexible coupling are essential to ensure its optimal performance and longevity. Incorrect installation can lead to premature wear, increased vibrations, and potential equipment failure. Below are the steps to install and align a flexible coupling properly:
1. Pre-Installation Inspection:
Before installation, inspect the flexible coupling and its components for any visible damage or defects. Check that the coupling’s size and specifications match the application requirements. Ensure that the shafts and equipment connected to the coupling are clean and free from debris.
2. Shaft Preparation:
Prepare the shafts by removing any oil, grease, or contaminants from the surfaces that will come into contact with the coupling. Ensure that the shaft ends are smooth and free from burrs that could affect the fit of the coupling.
3. Coupling Hub Installation:
Slide the coupling hubs onto the shafts, ensuring they are positioned securely and evenly on each shaft. Use a lubricant recommended by the manufacturer to facilitate the installation and ensure a proper fit.
4. Alignment:
Proper alignment is critical for the performance and longevity of the flexible coupling. Align the shafts by checking both angular and parallel misalignment. Utilize precision alignment tools, such as dial indicators or laser alignment systems, to achieve accurate alignment. Follow the manufacturer’s alignment specifications and tolerance limits.
5. Tightening Fasteners:
Once the shafts are properly aligned, tighten the coupling’s fasteners to the manufacturer’s recommended torque values. Gradually tighten the fasteners in a cross pattern to ensure even distribution of the load on the coupling hubs. Avoid over-tightening, as it may cause distortion or damage to the coupling.
6. Run-Out Check:
After installation, perform a run-out check to verify that the coupling’s rotating components are balanced and aligned. Excessive run-out can lead to vibrations and reduce the coupling’s performance. If significant run-out is detected, recheck the alignment and address any issues that may be causing it.
7. Lubrication:
Ensure that the flexible coupling is adequately lubricated, following the manufacturer’s recommendations. Proper lubrication reduces friction and wear, enhancing the coupling’s efficiency and reliability.
8. Periodic Inspection and Maintenance:
Regularly inspect the flexible coupling for signs of wear, misalignment, or damage. Address any issues promptly to prevent further problems. Depending on the coupling type and application, scheduled maintenance may include re-greasing, re-alignment, or replacing worn components.
Summary:
Proper installation and alignment are crucial for ensuring the optimal performance and longevity of a flexible coupling. Following the manufacturer’s guidelines, inspecting the components, achieving accurate alignment, and using the appropriate lubrication are key steps in the installation process. Regular inspection and maintenance help to identify and address potential issues, ensuring the coupling continues to operate smoothly and efficiently in the mechanical system.
How does a flexible coupling contribute to reducing maintenance and downtime costs?
A flexible coupling plays a significant role in reducing maintenance and downtime costs in mechanical systems. Here are the ways in which it achieves this:
- Misalignment Compensation: Flexible couplings can accommodate both angular and parallel misalignments between shafts. By absorbing and compensating for misalignment, they reduce wear and stress on connected equipment, minimizing the risk of premature failures and the need for frequent adjustments.
- Vibration Damping: Flexible couplings dampen vibrations and shock loads in the system. This not only protects the connected components from excessive wear but also reduces the likelihood of damage to bearings, seals, and other critical parts, which would otherwise require frequent replacement or repair.
- Protection Against Shock Loads: In applications where sudden starts, stops, or load fluctuations occur, flexible couplings can absorb and dissipate some of the shock loads, preventing potential damage to machinery. This feature extends the equipment’s lifespan and minimizes unplanned downtime.
- Longevity of Components: By reducing stress and wear on connected components, flexible couplings contribute to their longevity. Components such as bearings, shafts, and gears are subject to less strain and fatigue, resulting in extended service intervals and reduced replacement costs.
- Easy Installation and Maintenance: Flexible couplings are relatively easy to install and require minimal maintenance. Routine inspections to check for wear or damage can be done without significant downtime, allowing proactive maintenance to address any issues before they escalate.
- Adaptability to Operating Conditions: Flexible couplings can handle variations in operating conditions, such as temperature fluctuations and different types of loads. Their ability to accommodate changing conditions reduces the need for frequent adjustments or component replacements due to environmental factors.
- Reduced Downtime during Maintenance: In the event of maintenance or equipment repairs, flexible couplings can be quickly disconnected and reconnected, minimizing the downtime required for servicing. This quick replacement reduces production losses and improves overall system efficiency.
Overall, the use of flexible couplings in mechanical systems promotes reliability, extends the life of equipment, and helps prevent costly breakdowns. By reducing maintenance and downtime costs, flexible couplings contribute to improved productivity and profitability for industrial operations.
Can you explain the different types of flexible coupling designs available?
There are several types of flexible coupling designs available, each with its unique construction and characteristics. These designs are tailored to meet specific application requirements and address different types of misalignment and torque transmission needs. Here are some of the most common types of flexible couplings:
- Jaw Couplings: Jaw couplings consist of two hubs with curved jaws and an elastomer spider placed between them. The spider acts as a flexible element and can compensate for angular and parallel misalignment. Jaw couplings are widely used in various industrial applications due to their simple design and effectiveness in handling misalignment and vibration damping.
- Disc Couplings: Disc couplings use thin metallic discs with a series of alternating slits and flanges to connect the shafts. The disc coupling design allows for excellent misalignment compensation, including angular, parallel, and axial misalignment. Disc couplings are known for their high torsional stiffness and precise torque transmission capabilities.
- Gear Couplings: Gear couplings consist of toothed hubs connected by an external sleeve with gear teeth. They are well-suited for applications with high torque and moderate misalignment. Gear couplings offer good misalignment compensation and high torque capacity, making them popular in heavy-duty industrial applications.
- Beam Couplings: Beam couplings use a single piece of flexible material, often a metal beam, to connect the shafts. The material’s flexibility allows for angular and axial misalignment compensation. Beam couplings are compact, lightweight, and provide low inertia, making them suitable for applications with high-speed requirements.
- Bellows Couplings: Bellows couplings consist of a bellows-like flexible structure that connects the two hubs. They can compensate for angular, parallel, and axial misalignment. Bellows couplings are known for their high torsional stiffness and ability to maintain constant velocity transmission.
- Oldham Couplings: Oldham couplings use three discs, with the middle one having a perpendicular slot. This design allows for angular misalignment compensation while transmitting torque between the hubs. Oldham couplings are often used when electrical isolation between shafts is required.
Each flexible coupling design has its strengths and limitations, and the choice depends on factors such as the application’s torque requirements, misalignment conditions, operating environment, and speed. Proper selection of the coupling type ensures optimal performance, efficiency, and reliability in various mechanical systems and rotating machinery.
editor by CX 2024-02-22