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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Are there any Safety Considerations When Using Stainless Steel Couplings in Specific Applications?

Yes, there are several safety considerations to keep in mind when using stainless steel couplings in specific applications:

• Proper Installation: Ensure that the stainless steel couplings are correctly installed according to the manufacturer’s guidelines. Improper installation can lead to misalignment and increased stress on the coupling, potentially causing premature failure.
• Temperature and Pressure Limits: Pay attention to the temperature and pressure limits of the stainless steel coupling. Exceeding these limits may compromise the structural integrity of the coupling and pose safety risks.
• Corrosion Resistance: While stainless steel is known for its corrosion resistance, it is essential to select the appropriate grade of stainless steel that matches the specific environment in which the coupling will be used. In corrosive environments, using the wrong stainless steel grade can lead to degradation and failure over time.
• Maintenance: Regularly inspect and maintain the stainless steel coupling to detect any signs of wear, damage, or corrosion. Address any issues promptly to prevent potential hazards.
• Protective Gear: In some industrial applications, the stainless steel coupling may be exposed to rotating parts or other potential hazards. Ensure that appropriate protective gear, such as gloves or safety guards, is used when necessary.
• Emergency Shutdown: Establish a proper emergency shutdown procedure in case of coupling failure or other emergencies. This procedure should be clearly communicated to all relevant personnel.
• Load Considerations: Be aware of the load requirements and limitations of the stainless steel coupling. Overloading the coupling can lead to stress and failure.
• Environmental Factors: Consider environmental factors such as temperature fluctuations, humidity, and exposure to chemicals. These factors can influence the performance and safety of the coupling.

It is essential to conduct a thorough risk assessment for each specific application where stainless steel couplings are used. Following safety guidelines and best practices can help mitigate potential risks and ensure the safe operation of the mechanical system.

Stainless Steel Couplings in High-Temperature Applications

Stainless steel couplings are well-suited for high-temperature applications due to their excellent thermal stability and resistance to oxidation. The structural integrity of stainless steel couplings remains largely unaffected within certain temperature ranges, making them suitable for use in various industrial processes that involve elevated temperatures.

The performance of stainless steel couplings in high-temperature conditions is primarily attributed to the unique properties of stainless steel alloys. Stainless steel contains chromium, which forms a protective oxide layer on the surface when exposed to oxygen. This passive oxide layer, also known as chromium oxide, acts as a barrier against further oxidation and corrosion, enhancing the material’s resistance to heat and scaling.

The temperature limits for stainless steel couplings depend on the specific grade of stainless steel used. Common stainless steel grades like 304 and 316 have different temperature thresholds, but they can typically withstand temperatures ranging from 600°C to 925°C (1112°F to 1700°F) without significant loss of structural integrity.

For extreme high-temperature applications, specialized stainless steel alloys with higher nickel and chromium content, such as Inconel or Hastelloy, may be used. These alloys can withstand even higher temperatures, often exceeding 1000°C (1832°F) while maintaining their mechanical properties.

However, it’s essential to consider other factors such as thermal expansion and mechanical loads when using stainless steel couplings in high-temperature applications. High temperatures can cause thermal expansion and contraction, leading to misalignment or additional stress on the coupling. Engineers and designers should carefully account for these factors to ensure proper functioning and longevity of the coupling in such environments.

In summary, stainless steel couplings can be used in high-temperature applications without significant loss of structural integrity, provided the operating temperatures fall within the limits of the specific stainless steel grade used. Proper consideration of thermal expansion and other mechanical factors is crucial to ensuring the coupling’s optimal performance and reliability.

Types of Stainless Steel Couplings

Stainless steel couplings come in various designs and configurations to suit different application requirements. Some common types of stainless steel couplings available in the market include:

1. Clamp-Type Couplings:

These couplings consist of two hubs with screws or clamps that tighten around the shafts to create a secure connection. Clamp-type couplings are easy to install and provide good torque transmission while accommodating shaft misalignments.

2. Oldham Couplings:

Oldham couplings have a unique three-piece design with two hubs connected by a center disk. The disk is made of a different material like acetal or nylon and allows for zero-backlash operation and misalignment compensation.

3. Jaw Couplings:

Jaw couplings are made of two hubs with elastomeric inserts, known as spider elements, that provide shock absorption and misalignment compensation. They are commonly used in pumps, compressors, and other machinery.

4. Disc Couplings:

Disc couplings consist of multiple thin stainless steel discs stacked together with spacer elements. They offer high torsional stiffness and are suitable for applications requiring high torque transmission and precision.

5. Bellows Couplings:

Bellows couplings use thin-walled stainless steel bellows to compensate for misalignments while maintaining a hermetic seal. They are commonly used in vacuum systems and applications requiring precision motion control.

6. Grid Couplings:

Grid couplings feature a flexible grid element between two hubs, providing excellent shock absorption and misalignment compensation. They are commonly used in heavy-duty applications.

7. Multi-Beam Couplings:

Multi-beam couplings have multiple beams that offer flexibility and compensate for misalignments while maintaining torsional stiffness. They are suitable for precise motion control applications.

Each type of stainless steel coupling has its unique advantages and is designed to meet specific performance criteria. When selecting a stainless steel coupling for a particular application, it is essential to consider factors like torque requirements, misalignment compensation, and environmental conditions to ensure optimal performance and longevity.

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editor by CX 2024-04-25