Product Description

SC Transmission FCL Flexible Shaft Couplings for Reducer and Motor

 

Product Description

FCL Coupling/Shaft Coupling /Pin & Bush Coupling /FCL Flexible Coupling/NBK FCL Coupling is widely used for its compacts designing, easy installation, convenient maintenance, small and light weight. 

As long as the relative displacement between shafts is kept within the specified tolerance, couplings will operate the best function and have a longer working life.

Thus it is greatly demanded in medium and minor power transmission systems driven by motors, such as speed reducers, hoists, compressors, conveyors, spinning and weaving machines and ball mills.

Product Parameters

SIZE			D	D1		d1	L	C	n-M	kg
		r/min
	N.m
FCL90	4	4000	90	35.5		11	28	3	4-M8	1.7
FCL100	10	4000	100	40		11	35.5	3	4-M10	2.3
FCL112	16	4000	112	45		13	40	3	4-M10	2.8
FCL125	25	4000	125	65	50	13	45	3	4-M12	4
FCL140	50	4000	140	71	63	13	50	3	6-M12	5.4
FCL160	110	4000	160	80		15	56	3	8-M12	8
FCL180	157	3500	180	90		15	63	3	8-M12	10.5
FCL200	245	3200	200	100		21	71	4	8-M20	16.2
FCL224	392	2850	224	112		21	80	4	8-M20	21.3
FCL250	618	2550	250	125		25	90	4	8-M24	31.6
FCL280	980	2300	280	140		34	100	4	8-M24	44
FCL315	1568	2050	315	160		41	112	4	10-M24	57.7
FCL355	2450	1800	355	180		60	125	5	8-M30	89.5
FCL400	3920	1600	400	200		60	125	5	10-M30	113
FCL450	6174	1400	450	224		65	140	5	12-M30	145
FCL560	9800	1150	560	250		85	160	5	14-M30	229
FCL630	15680	1000	630	280		95	180	5	18-M30	296

 

 

Company Profile

FAQ

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What are the cost implications of using flexible couplings compared to other coupling types?

When considering the cost implications of using flexible couplings compared to other coupling types, several factors come into play. While flexible couplings may have a higher upfront cost in some cases, they often offer cost savings in the long run due to their advantages and reduced maintenance requirements.

• Upfront Cost: In terms of upfront cost, flexible couplings can vary depending on the design, material, and size. Some high-performance flexible couplings with specialized features may have a higher initial cost than simpler coupling types. For instance, certain specialized couplings used in demanding applications like high-speed precision machinery or corrosive environments might be more expensive.
• Maintenance Costs: Flexible couplings generally have lower maintenance costs compared to certain rigid coupling types. Rigid couplings, such as gear couplings or disc couplings, may require periodic maintenance to check for wear, lubrication, and alignment. In contrast, many flexible couplings, especially those with elastomeric elements, are self-lubricating and require little to no maintenance.
• Reduced Downtime: Due to their ability to accommodate misalignments and dampen vibrations, flexible couplings can reduce the wear and tear on connected equipment. This reduction in wear can lead to less frequent downtime for repairs or replacements, resulting in improved productivity and cost savings.
• Longevity: Flexible couplings are designed to absorb shocks and vibrations, which can extend the lifespan of connected equipment. By minimizing stress and wear on components, flexible couplings contribute to the longevity of machinery and reduce the need for premature replacements.
• Energy Efficiency: Some flexible couplings, such as beam couplings or certain elastomeric couplings, have low mass and inertia, contributing to better energy efficiency in rotating systems. By reducing energy losses, these couplings can result in cost savings over time.
• Application Specificity: In some cases, specialized coupling types might be necessary to meet specific application requirements. While these specialized couplings may have higher costs, they are designed to optimize performance and reliability in those specific scenarios.
• Compatibility and Adaptability: Flexible couplings are often more versatile in terms of accommodating shaft misalignment and different shaft sizes. Their adaptability can reduce the need for custom-made or precisely machined components, potentially saving costs in certain installations.

Overall, the cost implications of using flexible couplings compared to other coupling types depend on the specific application and its requirements. While they may have a higher initial cost in some cases, the long-term benefits, such as reduced maintenance, increased equipment longevity, and improved system efficiency, often justify the investment in flexible couplings.

How does a flexible coupling accommodate changes in shaft alignment due to thermal expansion?

Flexible couplings are designed to accommodate changes in shaft alignment that occur due to thermal expansion in rotating machinery. When equipment operates at elevated temperatures, the materials used in the shafts and other components expand, causing shifts in the relative positions of the connected shafts. This thermal expansion can lead to misalignment, which, if not addressed, may result in additional stress on the equipment and premature wear.

Flexible couplings employ specific design features that allow them to handle thermal-induced misalignment effectively:

• Flexibility: The primary feature of a flexible coupling is its ability to flex and deform to some extent. This flexibility allows the coupling to absorb small amounts of angular, parallel, and axial misalignment that may result from thermal expansion. As the shafts expand or contract, the flexible coupling compensates for the misalignment, helping to maintain proper alignment between the two shafts.
• Radial Clearance: Some flexible couplings, such as elastomeric couplings, have radial clearance between the coupling’s mating parts. This radial clearance provides additional room for the shafts to move laterally during thermal expansion without creating excessive forces on the coupling or connected equipment.
• Sliding Elements: Certain flexible couplings feature sliding elements that can move relative to each other. This capability allows the coupling to accommodate axial displacement resulting from thermal expansion or other factors.
• Flexible Element Materials: The materials used in the flexible elements of the coupling are chosen for their ability to handle the temperature range experienced in the application. Elastomeric materials, for example, can be selected to withstand high temperatures while still maintaining their flexibility.

It is essential to understand that while flexible couplings can compensate for some degree of thermal-induced misalignment, there are limits to their capabilities. If the thermal expansion exceeds the coupling’s compensating range, additional measures, such as incorporating expansion joints or using specialized couplings designed for greater misalignment compensation, may be necessary.

When selecting a flexible coupling for an application with potential thermal expansion, it is crucial to consider the expected operating temperature range and the level of misalignment that may occur due to thermal effects. Working with coupling manufacturers and consulting coupling catalogs can help in choosing the most suitable coupling type and size for the specific thermal conditions of the machinery.

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 2024-02-20