Product Description
GN series Coupling Rigid Step Motor Flexible shaft Coupling
GN series Coupling Rigid Step Motor Flexible shaft Coupling
|
model parameter |
common bore diameter d1,d2 |
ΦD |
L |
F |
M |
tightening screw torque |
|
GNC-16×16 |
3,4,5,6,6.35,7,8 |
16 |
16 |
3.75 |
M2.5 |
1 |
|
GNC-16×24 |
3,4,5,6,6.35,7,8 |
16 |
24 |
3.75 |
M2.5 |
1 |
|
GNC-20×20 |
4,5,6,6.35,7,8,9,9.525,10 |
20 |
20 |
3.75 |
M2.5 |
1 |
|
GNC-20×30 |
4,5,6,6.35,7,8,9,9.525,10 |
20 |
30 |
3.75 |
M2.5 |
1 |
|
GNC-25×25 |
5,6,6.35,7,8,9,9.525,10,12 |
25 |
25 |
6 |
M3 |
1.5 |
|
GNC-25×36 |
5,6,6.35,7,8,9,9.525,10,12 |
25 |
36 |
6 |
M3 |
1.5 |
|
GNC-28.5×38 |
6,6.35,7,8,9,9.525,10,12,12.7,14 |
28.5 |
38 |
7.8 |
M4 |
2.5 |
|
GNC-32×32 |
6,6.35,7,8,9,9.525,10,12,12.7,14,15,16 |
32 |
32 |
7 |
M4 |
2.5 |
|
GNC-32×41 |
6,6.35,7,8,9,9.525,10,12,12.7,14,15,16 |
32 |
41 |
7.75 |
M4 |
2.5 |
|
GNC-40×44 |
8,9,9.525,10,11,12,12.7,14,15,15,17,18,19,20 |
40 |
44 |
10.5 |
M5 |
7 |
|
GNC-40×52 |
8,9,9.525,10,11,12,12.7,14,15,15,17,18,19,20 |
40 |
52 |
10.5 |
M5 |
7 |
|
GNC-50×55 |
10,11,12,12.7,14,15,16,17,18,19,20,22,24,25 |
50 |
55 |
13 |
M6 |
12 |
|
GNC-50×66 |
10,11,12,12.7,14,15,16,17,18,19,20,22,24,25 |
50 |
66 |
16 |
M6 |
12 |
|
GNC-63×71 |
10,11,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32,35 |
63 |
71 |
16.5 |
M6 |
12 |
|
model parameter |
Rated torque(N.m) |
maximum speed (rpm) |
weight (g) |
|
GNC-16×16 |
5 |
1000 |
7 |
|
GNC-16×24 |
5 |
9400 |
13 |
|
GNC-20×20 |
10 |
7500 |
15 |
|
GNC-20×30 |
10 |
7500 |
25 |
|
GNC-25×25 |
12 |
6000 |
29 |
|
GNC-25×36 |
12 |
6000 |
43 |
|
GNC-28.5×38 |
14 |
5500 |
48 |
|
GNC-32×32 |
15 |
4700 |
55 |
|
GNC-32×41 |
15 |
4700 |
65 |
|
GNC-40×44 |
19 |
4000 |
123 |
|
GNC-40×52 |
19 |
4000 |
150 |
|
GNC-50×55 |
45 |
4000 |
240 |
|
GNC-50×66 |
45 |
4000 |
280 |
|
|
|
|
320 |
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.
“`
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.
“`
How to Diagnose and Fix Common Issues with Motor Couplings
Diagnosing and fixing common issues with motor couplings is essential to ensure optimal performance and prevent equipment failures. Here are steps to diagnose and address common coupling problems:
1. Visual Inspection:
Perform a visual inspection of the motor coupling regularly. Look for signs of wear, cracks, or any visible damage. Check for proper alignment and coupling installation.
2. Vibration Analysis:
Use vibration analysis to identify abnormal vibrations in the coupling or connected machinery. Excessive vibration can indicate misalignment, damaged coupling elements, or worn components.
3. Check for Misalignment:
Verify the alignment between the motor and driven equipment shafts. Misalignment can lead to coupling failure and increased stress on the machinery. Adjust the alignment if necessary.
4. Listen for Unusual Noises:
Listen for any unusual noises during motor operation, such as rattling or grinding sounds. Unusual noises may indicate a loose coupling or damaged components.
5. Inspect Coupling Fasteners:
Check the tightness of coupling fasteners, such as bolts or set screws. Loose fasteners can lead to misalignment and coupling slippage.
6. Lubrication:
If the coupling requires lubrication, ensure it is adequately lubricated. Lack of lubrication can cause increased friction and wear, leading to premature failure.
7. Replace Damaged Components:
If you find any signs of damage or wear during inspection, replace the damaged coupling elements promptly. This may include replacing elastomeric inserts, worn gear teeth, or other damaged parts.
8. Verify Torque Limiting (if applicable):
If the coupling has torque-limiting features, check that they are functioning correctly. These features protect the motor and equipment from overload situations.
9. Monitor Coupling Performance:
Regularly monitor the coupling’s performance to detect any changes or issues early on. Continuous monitoring can prevent more severe problems and reduce downtime.
10. Seek Professional Help:
If you are unsure about diagnosing or fixing a coupling issue, consider seeking assistance from a qualified technician or engineer.
By conducting regular inspections and addressing any problems promptly, you can extend the lifespan of the motor coupling and maintain the efficiency and reliability of the entire power transmission system.
“`
editor by CX 2023-10-16