Product Description

GN-25×36 Shaft Coupler Rigid Shaft Coupling

 

GN-25×36 Shaft Coupler Rigid Shaft Coupling

model parameter	common bore diameter d1,d2	ΦD	L	F	M	tightening screw torque (N.M)
GNC-16×16	3,4,5,6,6.35,7,8	16	16	3.75	M2.5	1
GNC-16×24	3,4,5,6,6.35,7,8	16	24	3.75	M2.5	1
GNC-20×20	4,5,6,6.35,7,8,9,9.525,10	20	20	3.75	M2.5	1
GNC-20×30	4,5,6,6.35,7,8,9,9.525,10	20	30	3.75	M2.5	1
GNC-25×25	5,6,6.35,7,8,9,9.525,10,12	25	25	6	M3	1.5
GNC-25×36	5,6,6.35,7,8,9,9.525,10,12	25	36	6	M3	1.5
GNC-28.5×38	6,6.35,7,8,9,9.525,10,12,12.7,14	28.5	38	7.8	M4	2.5
GNC-32×32	6,6.35,7,8,9,9.525,10,12,12.7,14,15,16	32	32	7	M4	2.5
GNC-32×41	6,6.35,7,8,9,9.525,10,12,12.7,14,15,16	32	41	7.75	M4	2.5
GNC-40×44	8,9,9.525,10,11,12,12.7,14,15,15,17,18,19,20	40	44	10.5	M5	7
GNC-40×52	8,9,9.525,10,11,12,12.7,14,15,15,17,18,19,20	40	52	10.5	M5	7
GNC-50×55	10,11,12,12.7,14,15,16,17,18,19,20,22,24,25	50	55	13	M6	12
GNC-50×66	10,11,12,12.7,14,15,16,17,18,19,20,22,24,25	50	66	16	M6	12
GNC-63×71	10,11,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32,35	63	71	16.5	M6	12

model parameter	Rated torque(N.m)	maximum speed (rpm)	weight (g)
GNC-16×16	5	1000	7
GNC-16×24	5	9400	13
GNC-20×20	10	7500	15
GNC-20×30	10	7500	25
GNC-25×25	12	6000	29
GNC-25×36	12	6000	43
GNC-28.5×38	14	5500	48
GNC-32×32	15	4700	55
GNC-32×41	15	4700	65
GNC-40×44	19	4000	123
GNC-40×52	19	4000	150
GNC-50×55	45	4000	240
GNC-50×66	45	4000	280
			320

 

 

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What are the potential drawbacks or limitations of using rigid shaft couplings in certain applications?

Rigid shaft couplings, while offering benefits in certain scenarios, also have limitations that should be considered when selecting them for specific applications:

• Minimal Misalignment Compensation: Rigid couplings have limited ability to compensate for shaft misalignment, making them less suitable for applications with significant misalignment.
• Transmits Vibrations: Rigid couplings do not dampen vibrations, which can lead to increased wear and fatigue in connected components and decrease overall system lifespan.
• Higher Stress Concentration: Due to their rigid nature, these couplings can result in higher stress concentrations at the coupling ends, potentially leading to premature failure.
• Noisy Operation: Rigid couplings can amplify noise generated by connected equipment, contributing to a noisier operating environment.
• Requires Precise Alignment: Proper alignment during installation is crucial to prevent excessive loads on equipment and ensure reliable operation.
• Less Torsional Damping: Rigid couplings lack the torsional damping capabilities of some other coupling types, which may be necessary in systems with varying loads.
• Less Forgiving: Rigid couplings can transmit shocks and impacts directly to connected equipment, which may not be suitable for applications with frequent starts, stops, or heavy loads.

It’s important to carefully assess the specific requirements of an application and consider factors such as misalignment, vibration, torque transmission, and environmental conditions when deciding whether to use a rigid shaft coupling. In cases where the limitations of rigid couplings may pose challenges, other coupling types such as flexible, torsionally soft, or damping couplings could be more appropriate alternatives.

Can rigid shaft couplings be used for shafts with different rotational speeds and directions?

Rigid shaft couplings are typically designed for applications where the connected shafts have the same rotational speed and direction. They are not well-suited for scenarios involving significant speed differences or reverse rotation between shafts. The limitations arise from the coupling’s rigid construction, which does not allow for the compensation of speed differentials or changes in direction.

When shafts have different rotational speeds or need to rotate in opposite directions, it can result in uneven loading, increased wear, vibrations, and even coupling failure. Rigid couplings lack the flexibility required to accommodate the variations in speed and direction, which can lead to undesirable consequences in the system.

If your application involves shafts with varying speeds or reverse rotation, it’s recommended to explore flexible coupling options. Flexible couplings, such as gear couplings, elastomeric couplings, or universal joints, are designed to handle these situations by providing a degree of angular and radial flexibility. These couplings can help distribute the loads more evenly, reduce vibrations, and compensate for speed differences, ultimately contributing to smoother and more reliable operation.

It’s essential to accurately assess the requirements of your application and choose the appropriate coupling type based on the specific operational conditions. If there are varying speeds or reverse rotation involved, opting for flexible couplings designed for such scenarios will help ensure the longevity, efficiency, and performance of your machinery.

What are the Materials Commonly Used to Manufacture Rigid Shaft Couplings, and How Do They Impact Performance?

Rigid shaft couplings are typically made from a variety of materials, and the choice of material can significantly impact the performance of the coupling in specific applications. Some common materials used in manufacturing rigid shaft couplings include:

• Steel: Steel is one of the most commonly used materials for rigid shaft couplings. It offers excellent strength and durability, making it suitable for high-torque and heavy-duty applications. Steel couplings can withstand significant stresses and provide reliable torque transmission.
• Stainless Steel: Stainless steel couplings offer the same benefits as regular steel couplings but with the added advantage of corrosion resistance. They are commonly used in applications where the coupling may be exposed to harsh environments or moisture.
• Aluminum: Aluminum couplings are lightweight and have good corrosion resistance. They are often used in applications where weight reduction is essential, such as in aerospace and automotive industries.
• Brass: Brass couplings are known for their excellent machinability and corrosion resistance. They are commonly used in applications where electrical conductivity is required.
• Cast Iron: Cast iron couplings are robust and offer good resistance to wear and tear. They are commonly used in industrial machinery and equipment.

The choice of material depends on various factors, including the application’s operating conditions, such as torque requirements, temperature, and environmental conditions. For example, in high-torque applications, steel or stainless steel couplings are often preferred due to their high strength. On the other hand, aluminum couplings are favored in applications where weight reduction is critical.

It is essential to consider the specific needs of the application and the coupling’s material properties to ensure optimal performance, longevity, and reliability of the rigid shaft coupling.

editor by CX 2024-04-26