Product Description

Custom CNC Turning Machining  Spline Shaft Couplings Steering Shaft Coupler Oldham Coupling
 

Product Description

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. 

Our leading mainly including universal couplings, drum gear couplings, elastic couplings etc.
Main production equipments:
Large lathe, surface grinder, milling machine, 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, 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.

Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector etc.
  
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.

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.
         

FAQ

               Q: Why choose Shengao product?
               A: We have our own factory, therefore, we can surely promise the quality of product and provide 
                   you competitive price.

               Q: Do you provide OEM Service?
               A: Yes, we provide OEM Service.

               Q: Do you provide customized machining parts?
               A: Yes. Customers give us drawings and specifications, and we will produce accordingly.

               Q: What is your payment term?
               A: We provide kinds of payment terms such as L/C, T/T, Paypal, Escrow, etc.

               If there’s anything we can help, please feel free to contact with us.

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Understanding the torque and speed limits for different mechanical coupling types.

The torque and speed limits of mechanical couplings vary depending on their design, materials, and intended applications. Here’s an overview of the torque and speed considerations for different types of mechanical couplings:

1. Rigid Couplings:

Rigid couplings are typically designed for high torque applications. They provide a direct and solid connection between shafts, making them suitable for transmitting substantial torque without introducing significant flexibility. The torque capacity of rigid couplings depends on the material and size, and they are often used in applications with high power requirements.

Rigid couplings can handle high rotational speeds since they lack flexible elements that may cause vibration or resonance at higher speeds. The speed limits are generally determined by the materials’ strength and the coupling’s balanced design.

2. Flexible Couplings:

Flexible couplings are more forgiving when it comes to misalignment and can accommodate some axial, radial, and angular misalignments. The torque capacity of flexible couplings can vary significantly depending on their design and material.

Elastomeric couplings, such as jaw couplings or tire couplings, have lower torque capacities compared to metal couplings like beam couplings or bellows couplings. The speed limits of flexible couplings are generally lower compared to rigid couplings due to the presence of flexible elements, which may introduce vibration and resonance at higher speeds.

3. Gear Couplings:

Gear couplings are robust and suitable for high-torque applications. They can handle higher torque than many other coupling types. The speed limits of gear couplings are also relatively high due to the strength and rigidity of the gear teeth.

4. Disc Couplings:

Disc couplings offer excellent torque capacity due to the positive engagement of the disc packs. They can handle high torque while being compact in size. The speed limits of disc couplings are also relatively high, making them suitable for high-speed applications.

5. Oldham Couplings:

Oldham couplings have moderate torque capacity and are commonly used in applications with moderate power requirements. Their speed limits are generally limited by the strength and design of the materials used.

6. Universal Couplings (Hooke’s Joints):

Universal couplings have moderate torque capacity and are used in applications where angular misalignment is common. The speed limits are determined by the materials and design of the coupling.

It’s important to refer to the manufacturer’s specifications and recommendations to determine the torque and speed limits of a specific mechanical coupling. Properly selecting a coupling that matches the application’s torque and speed requirements is crucial for ensuring reliable and efficient operation in the mechanical system.

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Exploring the use of mechanical couplings in high-power and heavy-duty machinery.

Mechanical couplings play a critical role in high-power and heavy-duty machinery, where reliable power transmission and robust performance are essential. These couplings are designed to withstand substantial torque, accommodate misalignment, and provide durability under demanding operating conditions. Here are some key aspects of using mechanical couplings in such machinery:

1. Power Transmission:

In high-power machinery, such as large industrial pumps, compressors, and turbines, mechanical couplings efficiently transfer significant amounts of torque from the driving source (e.g., motor or engine) to the driven equipment. The coupling’s design and material selection are crucial to ensure efficient power transmission and prevent energy losses.

2. Torque Capacity:

Heavy-duty machinery often generates high torque levels during operation. Mechanical couplings used in these applications are designed to handle these high torque requirements without compromising their structural integrity.

3. Misalignment Compensation:

Heavy-duty machinery may experience misalignment due to thermal expansion, foundation settling, or other factors. Mechanical couplings with flexible elements, like elastomeric or grid couplings, can effectively compensate for misalignment, reducing stress on connected equipment and prolonging the machinery’s life.

4. Shock Load Absorption:

High-power machinery may encounter sudden shock loads during starts, stops, or operational changes. Mechanical couplings with damping or shock-absorbing capabilities, such as elastomeric or disc couplings, help protect the equipment from damage and improve overall system reliability.

5. Heavy-Duty Applications:

Heavy-duty machinery, such as mining equipment, construction machinery, and steel rolling mills, require couplings capable of withstanding harsh conditions and heavy loads. Couplings made from robust materials like steel, cast iron, or alloy steel are commonly used in these applications.

6. High-Temperature Environments:

In certain heavy-duty machinery, like industrial furnaces and kilns, mechanical couplings are exposed to high temperatures. Couplings made from high-temperature alloys or materials with excellent heat resistance are selected for such applications.

7. Precision Machinery:

In precision machinery, such as CNC machines and robotics, couplings with low backlash and high torsional stiffness are preferred to ensure accurate and repeatable motion control.

8. Overload Protection:

Some high-power machinery may experience occasional overloads. Couplings with torque-limiting capabilities, like shear pin or magnetic couplings, can act as overload protection, preventing damage to the machinery during such instances.

Mechanical couplings in high-power and heavy-duty machinery are engineered to meet the specific requirements of each application, delivering reliable performance, safety, and efficiency. The proper selection and installation of couplings play a vital role in ensuring the optimal operation of these critical machines.

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How does a mechanical coupling facilitate the connection between two shafts?

A mechanical coupling plays a critical role in connecting two shafts in a mechanical system and enabling the transmission of torque and motion between them. The process of how a mechanical coupling facilitates this connection can be explained as follows:

1. Physical Linkage:

A mechanical coupling physically links the two shafts together. It consists of two mating components that fit over the respective shaft ends, ensuring a secure connection.

2. Torque Transmission:

When the motor or driving shaft rotates, it generates torque. This torque is transmitted through the mechanical coupling to the driven shaft, causing it to rotate as well.

3. Keyways or Spline Connection:

Many mechanical couplings use keyways or splines to enhance the connection between the shafts. Keyways are slots cut into the shaft and coupling, and a key is inserted to prevent relative motion between the two components.

4. Compression or Expansion Fit:

In some couplings, the connection between the shafts is achieved through a compression or expansion fit. The coupling is designed to be slightly smaller or larger than the shaft diameter, creating a tight fit when assembled.

5. Set Screws or Bolts:

Set screws or bolts are often used in mechanical couplings to secure the coupling tightly to the shafts. These screws apply pressure to prevent any relative movement between the coupling and the shafts during operation.

6. Flexible Elements:

Flexible couplings feature elements made of materials like rubber or elastomers that can bend or flex. These elements accommodate misalignment between the shafts while maintaining the connection and transmitting torque.

7. Key Features:

Certain types of couplings, such as gear couplings or disc couplings, utilize teeth or gear features to achieve a strong and precise connection between the shafts. These key features ensure a positive engagement, enhancing torque transmission.

In summary, a mechanical coupling serves as the link between two rotating shafts, enabling them to function together as a single unit. Whether through a tight compression fit, keyways, or flexible elements, the coupling ensures a secure and efficient connection, allowing torque to be transmitted from one shaft to the other, and enabling the mechanical system to perform its intended function reliably.

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editor by CX 2024-02-20