Product Description
Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Main products
Coupling refers to a device that connects 2 shafts or shafts and rotating parts, rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used as a safety device to prevent the connected parts from bearing excessive load, which plays the role of overload protection.
Couplings can be divided into rigid couplings and flexible couplings.
Rigid couplings do not have buffering property and the ability to compensate the relative displacement of 2 axes. It is required that the 2 axes be strictly aligned. However, such couplings are simple in structure, low in manufacturing cost, convenient in assembly and disassembly, and maintenance, which can ensure that the 2 axes are relatively neutral, have large transmission torque, and are widely used. Commonly used are flange coupling, sleeve coupling and jacket coupling.
Flexible coupling can also be divided into flexible coupling without elastic element and flexible coupling with elastic element. The former type only has the ability to compensate the relative displacement of 2 axes, but cannot cushion and reduce vibration. Common types include slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic elements. In addition to the ability to compensate the relative displacement of 2 axes, it also has the functions of buffering and vibration reduction. However, due to the strength of elastic elements, the transmitted torque is generally inferior to that of flexible couplings without elastic elements. Common types include elastic sleeve pin couplings, elastic pin couplings, quincunx couplings, tire type couplings, serpentine spring couplings, spring couplings, etc
Coupling performance
1) Mobility. The movability of the coupling refers to the ability to compensate the relative displacement of 2 rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation and deformation under load all put CHINAMFG requirements for mobility. The movable performance compensates or alleviates the additional load between shafts, bearings, couplings and other components caused by the relative displacement between rotating components.
(2) Buffering. For the occasions where the load is often started or the working load changes, the coupling shall be equipped with elastic elements that play the role of cushioning and vibration reduction to protect the prime mover and the working machine from little or no damage.
(3) Safe, reliable, with sufficient strength and service life.
(4) Simple structure, easy to assemble, disassemble and maintain.
How to select the appropriate coupling type
The following items should be considered when selecting the coupling type.
1. The size and nature of the required transmission torque, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axes of the 2 shafts is caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. Permissible overall dimensions and installation methods, and necessary operating space for assembly, adjustment and maintenance. For large couplings, they should be able to be disassembled without axial movement of the shaft.
In addition, the working environment, service life, lubrication, sealing, economy and other conditions should also be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.
If you cannot determine the type, you can contact our professional engineer
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Main production equipment:
Large lathe, surface grinder, milling machine, gear shaper, spline milling machine, horizontal broaching machine, gear hobbing machine, shaper, slotting machine, bench drilling machine, radial drilling machine, boring machine, band sawing machine, horizontal lathe, end milling machine, crankshaft grinder, CNC milling machine, casting equipment, etc.
Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector, special detection, modular fixture (self-made), etc.
Machining equipments
Heat equipment
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Application – Photos from our partner customers
Company Profile
Our leading products are mechanical transmission basic parts – couplings, mainly including universal couplings, drum gear couplings, elastic couplings and other 3 categories of more than 30 series of varieties. It is widely used in metallurgical steel rolling, wind power, hydropower, mining, engineering machinery, petrochemical, lifting, paper making, rubber, rail transit, shipbuilding and marine engineering and other industries.
Our factory takes the basic parts of national standards as the benchmark, has more than 40 years of coupling production experience, takes “scientific management, pioneering and innovation, ensuring quality and customer satisfaction” as the quality policy, and aims to continuously provide users with satisfactory products and services. The production is guided by reasonable process, and the ISO9001:2015 quality management system standard is strictly implemented. We adhere to the principle of continuous improvement and innovation of coupling products. In recent years, it has successfully developed 10 national patent products such as SWF cross shaft universal coupling, among which the double cross shaft universal joint has won the national invention patent, SWF cross shaft universal coupling has won the new product award of China’s general mechanical parts coupling industry and the ZHangZhoug Province new product science and technology project.
Our factory has strong technical force, excellent process equipment, complete professional production equipment, perfect detection means, excellent after-sales service, various products and complete specifications. At the same time, we can provide the design and manufacturing of special non-standard products according to the needs of users. Our products sell well at home and abroad, and are trusted by the majority of users. We sincerely welcome friends from all walks of life at home and abroad to visit and negotiate for common development.p
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Exploring the Use of Elastomeric Materials in Flexible Shaft Couplings
Elastomeric materials play a crucial role in the design and function of flexible shaft couplings. These materials, commonly known as elastomers, are rubber-like substances that exhibit high elasticity and flexibility. They are widely used in various types of flexible couplings due to their unique properties and benefits:
1. Damping and Vibration Absorption:
Elastomeric materials have excellent damping characteristics, meaning they can absorb and dissipate vibrations and shocks. This property is particularly useful in applications where vibration control is essential to protect sensitive equipment and improve overall system performance.
2. Misalignment Compensation:
Flexible shaft couplings with elastomeric elements can accommodate different types of misalignments, including angular, parallel, and radial misalignments. The elasticity of the material allows for limited movement between the shafts while still transmitting torque efficiently.
3. Torsional Flexibility:
Elastomers offer torsional flexibility, which allows them to twist and deform under torque loads. This feature helps to minimize torsional stresses and torsional backlash, making them suitable for applications requiring precise motion control.
4. Shock and Impact Resistance:
Due to their high resilience, elastomers can withstand sudden shocks and impacts without permanent deformation. This property makes them ideal for use in machinery subjected to varying loads or rapid changes in torque.
5. No Lubrication Requirement:
Elastomeric couplings are often maintenance-free because the elastomer material does not require additional lubrication. This reduces maintenance costs and simplifies the overall system upkeep.
6. Electric Isolation:
In certain applications, elastomeric materials can provide electrical isolation between the driving and driven components. This can help prevent the transmission of electrical currents or static charges through the coupling.
7. Corrosion Resistance:
Many elastomers used in couplings are resistant to corrosion, making them suitable for use in challenging environments where exposure to chemicals or moisture is a concern.
8. Easy Installation:
Elastomeric couplings are often designed for ease of installation and replacement. Their flexibility allows for simple and quick assembly onto the shafts without the need for special tools or complex procedures.
Given these advantages, elastomeric materials are popular choices for various flexible shaft couplings, including jaw couplings, tire couplings, and spider couplings. However, it is essential to select the right elastomer material based on the specific application requirements, such as temperature range, chemical compatibility, and torque capacity.
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Temperature and Speed Limits for Different Shaft Coupling Types
The temperature and speed limits of shaft couplings vary depending on the materials and design of the coupling. Manufacturers provide specific guidelines and ratings for each coupling type. Below are general temperature and speed limits for some common shaft coupling types:
1. Elastomeric Couplings:
Elastomeric couplings, such as jaw couplings and tire couplings, typically have temperature limits ranging from -40°C to 100°C (-40°F to 212°F). The speed limits for elastomeric couplings are generally up to 5,000 RPM, but some designs may allow higher speeds.
2. Metallic Couplings:
Metallic couplings, like gear couplings and disc couplings, can handle a wider temperature range, typically from -50°C to 200°C (-58°F to 392°F). The speed limits for metallic couplings vary based on the size and design, but they can range from 3,000 RPM to over 10,000 RPM.
3. Grid Couplings:
Grid couplings have temperature limits similar to metallic couplings, ranging from -50°C to 200°C (-58°F to 392°F). The speed limits for grid couplings are typically in the range of 3,000 to 5,000 RPM.
4. Oldham Couplings:
Oldham couplings usually have temperature limits from -30°C to 100°C (-22°F to 212°F) and speed limits ranging from 1,000 to 5,000 RPM.
5. Beam Couplings:
Beam couplings generally have temperature limits from -40°C to 120°C (-40°F to 248°F) and speed limits between 5,000 to 10,000 RPM.
6. Fluid Couplings:
Fluid couplings are suitable for a wide range of temperatures, often from -50°C to 300°C (-58°F to 572°F). The speed limits depend on the size and design of the fluid coupling but can extend to several thousand RPM.
It’s important to note that these are general guidelines, and the actual temperature and speed limits may vary based on the specific coupling manufacturer, material quality, and application requirements. Always refer to the manufacturer’s documentation and technical specifications for accurate and up-to-date temperature and speed limits for a particular shaft coupling model.
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How Does a Flexible Shaft Coupling Differ from a Rigid Shaft Coupling?
Flexible shaft couplings and rigid shaft couplings are two distinct types of couplings, each designed to serve different purposes in mechanical power transmission. Here are the key differences between the two:
1. Flexibility:
The most significant difference between flexible and rigid shaft couplings is their flexibility. Flexible couplings are designed with elements that can deform or flex to accommodate misalignments between the shafts. This flexibility allows for angular, parallel, and axial misalignments, making them suitable for applications where shafts are not perfectly aligned. In contrast, rigid couplings do not have this flexibility and require precise alignment between the shafts.
2. Misalignment Compensation:
Flexible couplings excel in compensating for misalignments, making them ideal for applications with dynamic conditions or those prone to misalignment due to thermal expansion or vibrations. Rigid couplings, on the other hand, are used in applications where perfect alignment is critical to prevent vibration, wear, and premature failure.
3. Damping Properties:
Flexible couplings, particularly those with elastomeric or flexible elements, offer damping properties, meaning they can absorb and reduce shocks and vibrations. This damping capability helps protect the connected equipment from damage and enhances system reliability. Rigid couplings lack this damping ability and can transmit shocks and vibrations directly between shafts.
4. Torque Transmission:
Both flexible and rigid couplings are capable of transmitting torque from the driving shaft to the driven shaft. However, the torque transmission of flexible couplings can be limited compared to rigid couplings, especially in high-torque applications.
5. Types of Applications:
Flexible couplings find applications in a wide range of industries, especially in situations where misalignment compensation, vibration damping, and shock absorption are essential. They are commonly used in conveyors, pumps, compressors, printing presses, and automation systems. Rigid couplings are used in precision machinery and applications that demand perfect alignment, such as high-speed spindles and certain types of precision equipment.
6. Installation:
Flexible couplings are relatively easier to install due to their ability to accommodate misalignment. On the other hand, rigid couplings require careful alignment during installation to ensure proper functioning and prevent premature wear.
The choice between a flexible and a rigid shaft coupling depends on the specific requirements of the application. If misalignment compensation, damping, and flexibility are critical, a flexible coupling is the preferred choice. If precision alignment and direct torque transmission are essential, a rigid coupling is more suitable.
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editor by CX 2024-03-27
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