Product Description

High quality magnetically coupled for motor
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Contact Us

Please send us following information.
1. Motor output power(KW)
2. Motor speed(RPM)
3. Torque of the mangetic coupling
4. Working pressure of the housing(isolation sleeve)
5. Working temperature of magnetic coupling
6. Technical drawing of the output part connector (usually motor)
7. Technical drawing of the input part connector (usually pump)
Why choose us
1: Various styles for each products and completely series pneumatic products.
2: Large stock for fast shipping.
3: High quality with competitive price.
4: Small quantity order is acceptable.
5: Customize according to your special request.
6: Provide free products information.
7: Reliable quality assured and active after-sell service
Product Description:

Size: For more size please contact with us!


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What is Magnetic Coupling?

A magnetic coupler transmits a force without any actual physical contact. Since magnetic forces attract and repel, and this force performs work, the action can be linear or rotary. A simple magnetic coupler has a follower and a driver. The driver is connected to a motor, while the follower reacts to the driver’s motion, and this result in the transmission of mechanical energy without contact.

To understand a magnetic coupler, it is helpful to understand magnets. A magnet produces a magnetic field or force. This force acts on ferromagnetic materials and pulls them together or pushes them apart. Ferromagnetic materials include iron, cobalt, nickel, and certain alloys. The overall strength of a magnet is measured by what is termed its magnetic moment, or by the magnetic flux that is produced.

Permanent magnets are made from materials that have their own constant magnetic field. Similarly, electromagnets are created by coils of wire that become magnetic when current runs through the wire. Both of these only have a magnetic force when electricity is applied. The strength of these magnets can be increased by wrapping the coil of wire around a ferromagnetic material. When a change in current in 1 conductor induces a voltage in the second conductor, both are magnetically coupled.

Operation Process Attention

Safe handling and storage magnet:
Be careful all the time, because the magnets will stick together and they can hurt your fingers. The magnet may also be damaged by the collision of the magnet itself (touch the edge or hit the crack).
Keep magnets away from objects, such as floppy disks, credit cards, computer monitors, watches, mobile phones, medical devices, etc..
1, magnets should be away from the pacemaker.
2, the larger size of the magnet, each piece should be added between the plastic or hard paper gasket to ensure that the magnet can be easily separated.
3, magnets should be stored in a dry, constant temperature environment.


motor coupling

Best Practices for Installing a Motor Coupling for Optimal Performance

Proper installation of a motor coupling is essential to ensure optimal performance and reliability of the power transmission system. Follow these best practices when installing a motor coupling:

1. Correctly Match Coupling Type:

Select a motor coupling type that is suitable for the specific application and operating conditions. Consider factors like torque requirements, misalignment tolerance, and environmental factors when choosing the coupling.

2. Ensure Proper Alignment:

Achieve precise alignment between the motor and driven equipment shafts before installing the coupling. Misalignment can lead to premature wear and reduced efficiency.

3. Check Shaft Endplay:

Verify that the shafts have the correct endplay to allow for thermal expansion and contraction. Inadequate endplay can lead to binding or increased stress on the coupling and connected components.

4. Clean Shaft Surfaces:

Ensure that the shaft surfaces are clean and free of any debris or contaminants before installing the coupling. Clean surfaces promote proper coupling engagement and reduce the risk of slippage.

5. Use Correct Coupling Fasteners:

Use the specified fasteners, such as bolts or set screws, provided by the coupling manufacturer. Tighten the fasteners to the recommended torque values to secure the coupling properly.

6. Verify Keyway Alignment:

If the coupling has a keyway, ensure that it aligns correctly with the key on the motor and driven equipment shafts. Proper keyway alignment prevents rotational slippage and ensures efficient torque transmission.

7. Lubrication:

If the coupling requires lubrication, apply the appropriate lubricant as recommended by the manufacturer. Proper lubrication reduces friction and wear on coupling components.

8. Perform Trial Run:

Before putting the system into full operation, perform a trial run to check for any abnormalities or vibrations. Monitor coupling performance and check for leaks, noises, or other signs of issues.

9. Regular Inspection and Maintenance:

Conduct regular inspections and maintenance on the motor coupling and the entire power transmission system. Check for wear, alignment, and any signs of damage, and address any issues promptly.

10. Follow Manufacturer Guidelines:

Always follow the manufacturer’s installation guidelines and recommendations for the specific coupling model. Manufacturer guidelines provide essential information for optimal performance and safe operation.

By adhering to these best practices, you can ensure that the motor coupling functions efficiently and contributes to the overall performance and reliability of the mechanical system.

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Temperature and Speed Limits for Different Motor Coupling Types

Motor couplings come in various types, and each type has its temperature and speed limits. These limits are essential considerations to ensure the coupling operates safely and efficiently. Here are the general temperature and speed limits for different motor coupling types:

1. Elastomeric Couplings:

Elastomeric couplings, such as jaw couplings and spider couplings, are commonly used in a wide range of applications. They typically have temperature limits of approximately -40°C to 100°C (-40°F to 212°F). The speed limits for elastomeric couplings typically range from 3,000 to 6,000 RPM, depending on the specific coupling design and size.

2. Gear Couplings:

Gear couplings are known for their high torque capacity and durability. The temperature limits for gear couplings are usually between -50°C to 150°C (-58°F to 302°F). The speed limits for gear couplings can be as high as 5,000 to 10,000 RPM or more, depending on the size and design.

3. Disc Couplings:

Disc couplings provide high torsional stiffness and are often used in precision applications. The temperature limits for disc couplings are typically around -40°C to 200°C (-40°F to 392°F). The speed limits for disc couplings can range from 5,000 to 20,000 RPM or more.

4. Grid Couplings:

Grid couplings are known for their shock absorption capabilities. The temperature limits for grid couplings are usually between -30°C to 100°C (-22°F to 212°F). The speed limits for grid couplings typically range from 3,600 to 5,000 RPM.

5. Oldham Couplings:

Oldham couplings are often used to transmit motion between shafts with significant misalignment. The temperature limits for Oldham couplings are generally around -30°C to 80°C (-22°F to 176°F). The speed limits for Oldham couplings are usually up to 3,000 to 5,000 RPM.

6. Diaphragm Couplings:

Diaphragm couplings are suitable for applications requiring high precision and torque transmission. The temperature limits for diaphragm couplings are typically between -50°C to 300°C (-58°F to 572°F). The speed limits for diaphragm couplings can be as high as 10,000 to 30,000 RPM.

It is essential to check the manufacturer’s specifications and recommendations for the specific coupling model to ensure the coupling operates within its intended temperature and speed limits. Operating the coupling beyond these limits may lead to premature wear, reduced performance, or even catastrophic failure. Properly selecting a coupling that matches the application’s temperature and speed requirements is critical for reliable and safe operation.

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How Does a Flexible Motor Coupling Differ from a Rigid Motor Coupling?

Flexible motor couplings and rigid motor couplings are two distinct types of couplings used to connect motors to driven equipment. They differ significantly in their design, function, and applications:

Flexible Motor Coupling:

A flexible motor coupling is designed to accommodate misalignment between the motor shaft and the driven equipment shaft. It uses flexible elements, such as elastomeric materials, to provide some degree of flexibility and damping. The key differences are:

  • Misalignment Compensation: Flexible couplings can handle both angular and parallel misalignment between the motor and driven equipment shafts. This flexibility reduces stress on bearings and allows for a smoother transmission of torque.
  • Shock Absorption: The elastomeric elements in flexible couplings can absorb and dampen vibrations and shock loads, protecting the motor and driven equipment from damage.
  • Applications: Flexible couplings are commonly used in applications where misalignment is expected, such as pumps, compressors, conveyors, and machine tools.

Rigid Motor Coupling:

A rigid motor coupling provides a solid and inflexible connection between the motor shaft and the driven equipment shaft. It does not allow any misalignment and offers a direct torque transmission path. The key differences are:

  • No Misalignment Compensation: Rigid couplings do not accommodate misalignment between the motor and driven equipment shafts. Proper alignment is critical for their efficient operation.
  • Stiffness: Rigid couplings offer high torsional stiffness, maintaining precise alignment between the shafts and enabling accurate torque transmission.
  • Applications: Rigid couplings are used in applications where precise alignment is required, such as high-precision machine tools, robotics, and applications with low or negligible misalignment.

The choice between a flexible motor coupling and a rigid motor coupling depends on the specific requirements of the application. Flexible couplings are preferred when misalignment is expected, while rigid couplings are suitable for applications where precise alignment and direct torque transmission are essential for the system’s performance.

China Good quality High Quality Magnetic Coupling for Motor   motor couplingChina Good quality High Quality Magnetic Coupling for Motor   motor coupling
editor by CX 2023-08-08