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

Related products

Company Profile

Our Equipments

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

Our Factory
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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Troubleshooting Common Issues with Tyre Couplings and Their Solutions

Tyre couplings, like any mechanical component, may encounter issues during their service life. Identifying and addressing these issues promptly is crucial to maintain the efficiency and reliability of the coupling and the connected machinery. Here are some common problems that may arise with tyre couplings and their potential solutions:

• 1. Misalignment: Misalignment between the shafts can lead to premature wear, increased vibration, and reduced coupling performance. Inspect the coupling for any signs of misalignment, such as abnormal wear on the tyre or coupling hubs. To solve this issue, realign the shafts within acceptable tolerances or consider using a tyre coupling with higher misalignment capability if necessary.
• 2. Excessive Vibration: Excessive vibration may indicate torsional vibration issues or misalignment. Check for any signs of damaged or worn components and ensure that the tyre coupling is adequately rated for the application’s speed and torque requirements. If vibration persists, consider using a tyre coupling with improved damping capabilities or consult with an engineer to identify the root cause.
• 3. Overheating: Overheating can be caused by excessive torque or overloading, inadequate ventilation, or operating beyond the temperature limits of the coupling. Verify that the coupling is appropriately sized for the application’s torque requirements and check for any obstructions hindering proper cooling. If the temperature exceeds the specified limits, consider using a high-temperature variant of the coupling or implementing cooling measures.
• 4. Abnormal Noise: Unusual noises, such as knocking or rattling, may indicate loose bolts, worn rubber elements, or misalignment. Inspect the coupling for loose connections and replace any damaged or worn parts. Additionally, verify the alignment and adjust if needed to eliminate the noise.
• 5. Cracks or Tears in the Tyre: Cracks or tears in the rubber tyre element can compromise the coupling’s flexibility and damping properties. Inspect the tyre regularly and replace it if any damage is detected. It is essential to use the correct replacement tyre recommended by the manufacturer.
• 6. Coupling Slippage: Slippage between the coupling and the shafts may occur due to inadequate tightening of the bolts or insufficient keying. Check the tightness of the bolts and ensure that they are torqued to the manufacturer’s specifications. If slippage persists, verify the keying or consider using a more secure keying method.

When troubleshooting tyre coupling issues, always refer to the manufacturer’s guidelines and technical documentation for specific solutions and recommendations. Regular inspections, preventive maintenance, and adherence to the manufacturer’s guidelines can help prevent and resolve problems, ensuring the smooth and efficient operation of tyre couplings and the connected machinery.

Can Tyre Couplings Accommodate Angular and Axial Misalignments Simultaneously?

Yes, tyre couplings are designed to accommodate both angular and axial misalignments simultaneously. The unique design of tyre couplings allows them to flex in multiple directions, making them highly versatile in compensating for various types of misalignments between the connected shafts.

The elastomeric tyre element of the coupling provides the necessary flexibility to accommodate angular misalignment. As the shafts rotate and their axes deviate from a perfect alignment, the tyre element deforms slightly to allow for the angular displacement. This helps reduce the reactive forces and torques that would otherwise be transmitted to the connected machinery, preventing excessive wear and damage.

Moreover, the tyre element’s elastic properties enable it to absorb axial misalignment as well. When one shaft moves axially relative to the other, the tyre element compresses or expands to accommodate the axial displacement. This feature is particularly beneficial in applications where axial movement is common, such as in reciprocating machinery.

By simultaneously accommodating angular and axial misalignments, tyre couplings help to minimize the stresses on the machinery and ensure smoother power transmission. However, it is essential to ensure that the misalignments are within the specified limits recommended by the coupling manufacturer to prevent overloading and premature wear of the coupling components.

In conclusion, tyre couplings are well-suited for applications with combined angular and axial misalignments, providing a reliable and efficient solution for power transmission in various industrial settings.

Materials Used in Manufacturing Tyre Couplings

Tyre couplings are designed to withstand various operating conditions, including high torque, misalignment, and shock loads. As a result, they are typically constructed using high-quality and durable materials. The primary materials used in manufacturing tyre couplings are:

• Cast Iron: Cast iron is a common material used for the hubs of tyre couplings. It offers excellent strength, rigidity, and durability, making it suitable for heavy-duty applications. Cast iron hubs provide a sturdy foundation for the coupling and ensure reliable power transmission.
• Steel: Steel is used in various components of the tyre coupling, including the fasteners, such as bolts and screws. Steel fasteners provide the necessary clamping force to secure the coupling assembly while withstanding the torque and forces experienced during operation.
• Rubber: The tyre element of the coupling is made from high-grade rubber or synthetic rubber materials. Rubber is selected for its flexibility, resilience, and ability to dampen vibrations. The rubber tyre element acts as a flexible medium that accommodates misalignment and absorbs shock loads, reducing stress on the machinery and components.
• Aluminum: Some lightweight tyre couplings may use aluminum for the hubs or other non-load-bearing components. Aluminum offers corrosion resistance and reduces the overall weight of the coupling, which can be advantageous in certain applications.
• Phenolic Resin: In some high-performance tyre couplings, phenolic resin may be used to reinforce the rubber tyre element. The addition of phenolic resin enhances the coupling’s torque transmission capacity and torsional stiffness, making it suitable for demanding applications.

It is essential to select the appropriate materials based on the specific requirements of the application. Factors such as the magnitude of torque, operating temperature, environmental conditions, and the presence of corrosive substances play a crucial role in determining the materials’ suitability for the tyre coupling.

Manufacturers follow stringent quality control procedures to ensure the materials used in tyre couplings meet industry standards and performance requirements. Proper material selection and quality manufacturing contribute to the durability, reliability, and efficiency of tyre couplings across a wide range of industrial applications.

editor by CX 2024-03-26