Product Description

GFC-20×25 Type Aluminum Alloy Shaft Flange Coupling Flexible Shaft Coupling

 

Description of GFC-20×25 Type Aluminum Alloy Shaft Flange Coupling Flexible Shaft Coupling

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

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Use of Flexible Flange Couplings in Applications Requiring Electrical Isolation

Yes, flexible flange couplings can be used in applications requiring electrical isolation between shafts. In certain industrial scenarios, it is essential to electrically isolate the connected equipment or shafts to prevent the flow of electrical current between them. This requirement is common in applications involving sensitive electronic components, motors, generators, or systems where grounding issues need to be avoided.

To achieve electrical isolation, flexible flange couplings can be designed using non-conductive or insulating materials. Some key considerations for using flexible flange couplings in such applications are as follows:

1. Material Selection: Instead of metallic materials commonly used in standard couplings, such as steel or aluminum, the flexible flange couplings for electrical isolation purposes can be manufactured from non-conductive materials like thermoplastics, certain composites, or specially formulated insulating elastomers.
2. Insulating Sleeve: Some flexible flange couplings may feature an insulating sleeve or barrier between the two flanges. This sleeve prevents direct contact between the flanges and acts as an electrical barrier, ensuring isolation between the shafts.
3. Dielectric Strength: When selecting materials for electrical isolation, it is crucial to consider their dielectric strength, which determines the maximum voltage they can withstand without breakdown. The materials chosen should have adequate dielectric strength to suit the application’s electrical requirements.
4. Performance Considerations: It is important to note that while achieving electrical isolation, the selected materials should still meet the necessary performance criteria for the specific application. The coupling must retain its ability to transmit torque, accommodate misalignment, and provide damping characteristics as required.
5. Environmental Factors: Consideration should also be given to the environmental conditions of the application, such as temperature, humidity, and chemical exposure. The chosen materials should be compatible with the operating environment to ensure long-term reliability.

By carefully selecting appropriate materials and incorporating insulating features, flexible flange couplings can effectively provide electrical isolation between shafts while fulfilling the mechanical and functional requirements of the machinery or equipment. This enables the safe and reliable operation of electrical systems without the risk of electrical currents passing through the coupling and connected components.

Where to Find Reputable Suppliers or Manufacturers of Flexible Flange Couplings for Your Specific Power Transmission Needs?

When looking for reputable suppliers or manufacturers of flexible flange couplings, consider the following steps:

1. Online Research: Start by conducting online research to identify companies that specialize in power transmission components, including flexible flange couplings. Look for manufacturers with a strong reputation, positive customer reviews, and a history of delivering high-quality products.
2. Industry Directories: Industry-specific directories and trade publications often feature listings of suppliers and manufacturers. These directories can be a valuable resource to find companies that offer flexible flange couplings tailored to your industry’s needs.
3. Trade Shows and Exhibitions: Attend trade shows and exhibitions related to power transmission, where you can meet suppliers in person, examine product samples, and discuss your specific requirements.
4. Referrals and Recommendations: Seek referrals or recommendations from industry peers, colleagues, or professionals who have experience with flexible flange couplings. Their insights can lead you to reliable suppliers.
5. Supplier Websites: Visit the websites of potential suppliers to gather detailed information about their products, manufacturing processes, certifications, and capabilities. Look for suppliers with a comprehensive product range and customization options.
6. Quality and Certifications: Verify if the supplier follows industry standards and has relevant certifications such as ISO, ASME, or API. These certifications demonstrate their commitment to quality and compliance.
7. Technical Support: Evaluate the technical support and customer service provided by the supplier. A reliable supplier should be responsive to your queries, offer guidance on selecting the right coupling, and provide after-sales support.
8. Sample and Testing: Request samples of the flexible flange couplings to evaluate their quality and suitability for your application. Some suppliers may also offer testing services to validate the performance of their products.
9. Price and Delivery: Obtain quotes from multiple suppliers to compare prices, delivery times, and shipping costs. However, prioritize quality and reliability over cost alone.

By following these steps, you can find reputable suppliers or manufacturers that can meet your specific power transmission needs with high-quality flexible flange couplings. Remember to conduct thorough research and consider factors beyond price to ensure you choose a supplier that can provide durable and efficient couplings for your application.

Flexible Flange Coupling in Mechanical Power Transmission

A flexible flange coupling is a type of coupling used to connect two shafts and transmit mechanical power from one shaft to another. It is designed to accommodate misalignment, parallel, angular, and axial, between the connected shafts. The coupling consists of two flanges with interlocking teeth or ridges on their mating faces, and a flexible element, often made of elastomeric material, positioned between the flanges.

The function of a flexible flange coupling in mechanical power transmission is as follows:

1. Compensation for Misalignment: One of the primary functions of a flexible flange coupling is to compensate for misalignment between the shafts. Misalignment can occur due to various factors, such as manufacturing tolerances, thermal expansion, or vibrations. The flexible element allows the flanges to move relative to each other, accommodating both angular and parallel misalignments without imposing significant loads on the connected machinery.
2. Shock Absorption: The flexible element in the coupling acts as a shock absorber, dampening sudden shocks and vibrations that may arise from the equipment or system. This helps protect the machinery from damage and minimizes wear and tear, enhancing the overall service life of the system.
3. Torsional Flexibility: Flexible flange couplings offer torsional flexibility, allowing them to transmit torque smoothly between the shafts, even when the two shafts are not perfectly aligned. This capability is essential in applications where there are frequent starts, stops, or changes in load, as it reduces the risk of stress concentration and premature failure.
4. Isolation of Vibrations: Vibrations generated in one shaft due to imbalances, misalignment, or other factors can be isolated from the other shaft by the flexible element, preventing the vibrations from propagating throughout the entire system and reducing noise levels.
5. Easy Installation and Maintenance: Flexible flange couplings are relatively easy to install and maintain. The split design of the flanges allows them to be assembled around the shafts without the need to disassemble the entire system. This feature simplifies installation and reduces downtime during maintenance.

Conclusion: Flexible flange couplings play a crucial role in mechanical power transmission by providing a flexible and reliable connection between rotating shafts. Their ability to compensate for misalignment, absorb shocks, transmit torque smoothly, and isolate vibrations makes them suitable for a wide range of applications in various industries.

editor by CX 2024-05-16