China wholesaler Flexible Coupling Servo Motor Use 20mm CNC Spider Shaft Jaw Coupling motor coupling

Product Description

Item No. φD L L1 L2 L3 S M Tighten the strength(N.m)
SG7-10-14- 15 20 6 6 3 1 M3 1
SG7-10-25- 26 26 8 8 4 1 M4 1.5
SG7-10-30- 32 32 10 9 5 1.5 M4 1.7
SG7-10-40- 40 50 17 12 8.5 2 M5 4
SG7-10-55- 56 58 20 14 10 2 M5 4
SG7-10-65- 66 62 21 15 10.5 2.5 M8 15
SG7-10-80- 82 86 31 18 15.5 3 M8 15
SG7-10-95- 98 94 34 20 17 3 M8 15
SG7-10-108- 108 123 46 24 23 3.5 M8 15


Item No. Rated torque Maximum Torque Max Speed Inertia Moment N.m rad RRO Tilting Tolerance End-play Weight:(g)
SG7-10-14- 1.1N.m 2.2N.m 19000prm 3.9×10-4kg.m² 45N.m/rad 0.02mm 1.0c +0.6mm 20
SG7-10-25- 6.0N.m 12N.m 16000prm 6.8×10kg.m² 56N.m/rad 0.02mm 1.0c +0.6mm 25
SG7-10-30- 6.5N.m 13N.m 15000prm 8.3×10kg.m² 70N.m/rad 0.02mm 1.0c +0.6mm 46
SG7-10-40- 32N.m 64N.m 13000prm 9.3×10kg.m² 490N.m/rad 0.02mm 1.0c +0.8mm 135
SG7-10-55- 46N.m 92N.m 10500prm 3.8×10-3kg.m² 1470N.m/rad 0.02mm 1.0c +0.8mm 300
SG7-10-65- 109N.m 218N.m 8300prm 8×10kg.m² 2700N.m/rad 0.02mm 1.0c +0.8mm 570
SG7-10-80- 135N.m 270N.m 7000prm 1.5×10-2kg.m² 3100N.m/rad 0.02mm 1.0c +1.0mm 910
SG7-10-95- 260N.m 520N.m 6000prm 1.9×10kg.m² 4400N.m/rad 0.02mm 1.0c +1.0mm 1530
SG7-10-108- 430N.m 860N.m 5000prm 3×10kg.m² 5700N.m/rad 0.02mm 1.0c +1.0mm 2200

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motor coupling

Is it Possible to Replace a Motor Coupling Without Professional Assistance?

Yes, it is possible to replace a motor coupling without professional assistance, but it requires some mechanical knowledge and proper tools. Here are the steps to replace a motor coupling:

1. Safety First:

Before attempting any maintenance or replacement, ensure the motor and driven equipment are turned off and disconnected from the power source to prevent accidents.

2. Identify the Coupling Type:

Determine the type of motor coupling currently installed in the system. Different coupling types may have slightly different installation methods.

3. Gather Necessary Tools:

Collect the necessary tools, such as wrenches, socket set, screwdrivers, and any other specific tools required for the particular coupling type.

4. Remove Fasteners:

Loosen and remove the fasteners that secure the coupling to the motor and driven equipment shafts. Keep track of the fasteners to ensure they are reinstalled correctly.

5. Disconnect the Coupling:

Disconnect the coupling from both the motor and driven equipment shafts. Depending on the coupling type, this may involve sliding the coupling off the shafts or unbolting it from the flanges.

6. Inspect the Coupling:

Inspect the old coupling for signs of wear, damage, or misalignment. This assessment will help determine if the coupling replacement is necessary.

7. Install the New Coupling:

Place the new coupling onto the motor and driven equipment shafts, ensuring it fits properly and aligns with any keyways or grooves.

8. Reattach Fasteners:

Tighten and secure the fasteners to hold the new coupling in place. Follow the manufacturer’s recommended torque values for the specific coupling model.

9. Perform Trial Run:

Before full operation, perform a trial run to check the coupling’s performance and ensure everything is working correctly. Monitor for any abnormal vibrations or noises.

10. Regular Maintenance:

After replacement, follow regular maintenance practices to inspect the coupling and the entire power transmission system for any signs of wear or issues.

While it is possible to replace a motor coupling without professional assistance, keep in mind that improper installation or failure to diagnose other underlying issues may lead to further problems. If you are unsure about the process or encounter difficulties during the replacement, it is always best to seek the help of a qualified technician or engineer to ensure a successful and safe coupling replacement.

“`motor coupling

Explaining the Concept of Backlash and Its Impact on Motor Coupling Performance

Backlash is a critical factor in motor coupling performance and refers to the clearance or play between mating components within the coupling. In the context of motor couplings, it specifically relates to the amount of free movement or angular displacement that occurs when there is a change in direction of the driven shaft without a corresponding immediate change in the driving shaft.

Backlash in motor couplings can occur due to several factors:

  • Manufacturing Tolerances: Variations in the manufacturing process can lead to slight clearances between coupling components, introducing backlash.
  • Wear and Tear: Over time, the coupling components may experience wear, leading to increased clearance and backlash.
  • Misalignment: Improper alignment between the motor and driven equipment shafts can cause additional play in the coupling, resulting in increased backlash.

The impact of backlash on motor coupling performance includes the following:

1. Reduced Accuracy:

Backlash can lead to inaccuracies in motion transmission. When the direction of rotation changes, the free play in the coupling must be taken up before torque can be effectively transmitted. This delay in motion transfer can cause positioning errors and reduced accuracy in applications requiring precise movements.

2. Vibration and Noise:

Excessive backlash can cause vibration and noise during operation. The sudden engagement of the coupling components after a change in direction can create shocks and vibrations that may affect the overall system performance and lead to premature wear of coupling components.

3. Reduced Efficiency:

Backlash results in power loss, especially in applications with frequent changes in direction. The energy required to take up the clearance in the coupling reduces the overall efficiency of power transmission.

4. Wear and Fatigue:

Repeated impacts due to backlash can accelerate wear and fatigue of coupling components, leading to a shorter lifespan and potential coupling failure.

5. Safety Concerns:

In certain applications, particularly those involving heavy machinery or high-speed operations, excessive backlash can pose safety risks. The lack of immediate response to directional changes can affect the control and stability of the equipment.

To mitigate the effects of backlash, it is essential to select motor couplings with low or controlled backlash and to maintain proper alignment during installation. Regular inspection and maintenance can help identify and address any increasing backlash, ensuring the motor coupling operates with optimum performance and reliability.

“`motor coupling

What is a Motor Coupling and its Role in Connecting Motors to Driven Equipment?

A motor coupling is a mechanical device used to connect an electric motor to driven equipment, such as pumps, compressors, conveyors, and other machinery. Its primary role is to transmit torque from the motor to the driven equipment, allowing the motor to drive and control the operation of the connected machinery.

Function of a Motor Coupling:

The motor coupling serves several essential functions in the overall mechanical system:

1. Torque Transmission:

The main function of a motor coupling is to transfer torque from the motor shaft to the shaft of the driven equipment. As the motor rotates, it generates torque that needs to be efficiently transmitted to the machinery to produce the desired motion or work.

2. Misalignment Compensation:

Motor couplings can accommodate a certain degree of misalignment between the motor and driven equipment shafts. Misalignment may occur due to manufacturing tolerances, installation errors, or operational conditions. The coupling’s flexibility helps reduce stress on the motor and driven equipment’s bearings and prolongs their life.

3. Vibration Damping:

Some motor couplings, particularly those with flexible elements like elastomeric or rubber components, can dampen vibrations generated during motor operation. Vibration damping improves the overall system’s performance and reduces wear on connected components.

4. Overload Protection:

Motor couplings can act as a safety feature by providing overload protection to the connected machinery. In certain coupling designs, a shear pin or a similar mechanism may break under excessive load or torque, preventing damage to the motor or driven equipment.

5. Noise Reduction:

Well-designed motor couplings can help reduce noise and resonance in the system. By absorbing vibrations and minimizing backlash, the coupling contributes to quieter and smoother operation.

6. Efficiency and Reliability:

A properly selected and installed motor coupling improves the overall efficiency and reliability of the mechanical system. It ensures that the motor’s power is effectively transmitted to the driven equipment, resulting in smoother operation and reduced energy losses.

Motor couplings come in various types, including rigid couplings, flexible couplings, gear couplings, and more, each designed to suit specific applications and operating conditions. Selecting the appropriate coupling type is crucial to ensure optimal performance, prolonged equipment life, and enhanced safety in motor-driven systems.

China wholesaler Flexible Coupling Servo Motor Use 20mm CNC Spider Shaft Jaw Coupling   motor couplingChina wholesaler Flexible Coupling Servo Motor Use 20mm CNC Spider Shaft Jaw Coupling   motor coupling
editor by CX 2024-04-04


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