Product Description
Flexible.
Compact size has powerful transmission capacity.
Metal-built.
Easy-mount-and-demount.
| MODEL NO. |
BORE DIA | D | DH | L | I | S | MAX. TORQUE |
WEIGHT | SHELL | |||
| MIN. | MAX. | A | B | WEIGHT | ||||||||
| mm | mm | mm | mm | mm | mm | mm | kN.m | kg | kg | |||
| CHC3812 | 9.50 | 16.00 | 45.00 | 25.00 | 64.90 | 30.00 | 4.90 | 0.249 | 0.3 | 61.00 | 57.00 | 0.1 |
| CHC4012 | 11.00 | 22.00 | 61.00 | 35.00 | 79.40 | 36.00 | 7.40 | 0.329 | 0.8 | 75.00 | 75.00 | 0.2 |
| CHC4016 | 15.00 | 30.00 | 77.00 | 50.00 | 79.40 | 36.00 | 7.40 | 0.419 | 1.4 | 92.00 | 75.00 | 0.3 |
| CHC5016 | 15.00 | 38.00 | 96.00 | 60.00 | 99.70 | 45.00 | 9.70 | 0.791 | 2.6 | 111.00 | 85.00 | 0.6 |
| CHC5018 | 19.00 | 45.00 | 106.00 | 70.00 | 99.70 | 45.00 | 9.70 | 0.979 | 3.5 | 123.00 | 85.00 | 0.8 |
| CHC6018 | 22.00 | 55.00 | 127.00 | 85.00 | 119.50 | 54.00 | 11.50 | 1.810 | 6.0 | 142.00 | 106.00 | 1.2 |
| CHC6571 | 25.00 | 75.00 | 151.00 | 110.00 | 119.50 | 54.00 | 11.50 | 2.610 | 9.5 | 167.00 | 106.00 | 1.6 |
| CHC8018 | 30.00 | 78.00 | 169.00 | 115.00 | 149.20 | 67.00 | 15.20 | 3.920 | 14.0 | 186.00 | 130.00 | 2.5 |
| CHC8571 | 35.00 | 95.00 | 202.00 | 140.00 | 146.20 | 67.00 | 15.20 | 5.640 | 20.0 | 220.00 | 130.00 | 2.7 |
| CHC1571 | 38.00 | 110.00 | 232.00 | 160.00 | 200.80 | 91.00 | 18.80 | 8.400 | 34.0 | 248.00 | 144.00 | 3.0 |
| CHC12018 | 48.00 | 120.00 | 254.00 | 170.00 | 260.80 | 119.00 | 22.80 | 12.700 | 50.0 | 309.00 | 185.00 | 7.2 |
| CHC12571 | 58.00 | 150.00 | 302.00 | 210.00 | 260.80 | 119.00 | 22.80 | 18.300 | 65.0 | 357.00 | 185.00 | 9.0 |
| CHC16018 | 68.00 | 160.00 | 341.00 | 220.00 | 360.10 | 165.00 | 30.10 | 26.400 | 122.0 | 402.00 | 240.00 | 9.6 |
| CHC16571 | 78.00 | 200.00 | 405.00 | 280.00 | 360.10 | 165.00 | 30.10 | 38.100 | 185.0 | 466.00 | 240.00 | 16.3 |
| CHC20018 | 88.00 | 205.00 | 424.00 | 295.00 | 519.60 | 241.00 | 37.60 | 54.100 | 288.0 | 490.00 | 270.00 | 19.0 |
| CHC20571 | 98.00 | 260.00 | 505.00 | 375.00 | 519.60 | 241.00 | 37.60 | 77.800 | 334.0 | 570.00 | 270.00 | 25.0 |
Can Shaft Couplings Compensate for Angular, Parallel, and Axial Misalignments?
Yes, shaft couplings are designed to compensate for different types of misalignments between rotating shafts in mechanical power transmission systems. They can handle the following types of misalignments:
- Angular Misalignment: This occurs when the shafts are not parallel and have an angle between them. Flexible couplings, such as elastomeric, beam, or Oldham couplings, can accommodate angular misalignments by allowing slight angular movement between the shafts while transmitting torque.
- Parallel Misalignment: This happens when the shafts are not collinear, resulting in axial displacement. Flexible couplings with lateral flexibility, like elastomeric or bellows couplings, can handle parallel misalignment by allowing limited lateral movement between the shafts.
- Radial Misalignment: Radial misalignment occurs when the shafts have lateral displacement but remain parallel. Flexible couplings, such as jaw or grid couplings, can absorb radial misalignment by permitting some lateral deflection while transmitting torque.
It is essential to note that while shaft couplings can compensate for misalignments to some extent, they do have their limits. The magnitude of misalignment they can handle depends on the type and design of the coupling. Exceeding the specified misalignment capabilities of a coupling can lead to premature wear, reduced efficiency, and possible coupling failure.
Therefore, when selecting a shaft coupling for an application, it is crucial to consider the expected misalignment and choose a coupling that can accommodate the anticipated misalignment range. Additionally, maintaining proper alignment through regular maintenance and periodic inspections is essential to ensure the coupling’s optimal performance and extend its service life.
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How to Identify Signs of Wear or Failure in a Shaft Coupling
Regular inspection and monitoring are essential to identify signs of wear or potential failure in a shaft coupling. Detecting issues early can help prevent costly downtime and equipment damage. Here are common signs to look for:
1. Visible Damage:
Inspect the coupling for visible signs of damage, such as cracks, chips, or deformation. These can indicate mechanical stress or overload.
2. Abnormal Noise or Vibration:
Unusual noise or excessive vibration during operation may indicate misalignment, worn-out components, or a coupling nearing its failure point.
3. Increased Temperature:
If the coupling becomes noticeably hotter during operation than usual, it could be a sign of friction or misalignment issues.
4. Shaft Misalignment:
Check for misalignment between the shafts connected by the coupling. Misalignment can lead to increased stress on the coupling and its components.
5. Excessive Backlash:
If the coupling exhibits too much free play or rotational play before torque transmission, it might indicate wear or fatigue in the coupling’s components.
6. Lubrication Issues:
Inspect the coupling for lubrication leaks or insufficient lubrication, which can lead to increased friction and wear.
7. Elastomeric Element Deterioration:
If the coupling uses elastomeric elements (e.g., rubber or polyurethane), check for signs of deterioration, such as cracking, softening, or deformation.
8. Bolts and Fasteners:
Examine the bolts and fasteners connecting the coupling components. Loose or damaged bolts can lead to misalignment and coupling failure.
9. Age and Service Life:
Consider the age and service life of the coupling. If it has been in use for a long time or exceeds the manufacturer’s recommended service life, it may be more susceptible to wear and failure.
10. Abnormal Performance:
Monitor the overall performance of the connected equipment. Any abnormal behavior, such as reduced power transmission or erratic operation, could be indicative of coupling issues.
If any of these signs are observed, it’s crucial to take immediate action. Depending on the severity of the issue, this may involve replacing worn components, realigning the shafts, or replacing the entire coupling. Regular maintenance and periodic inspections are key to identifying these signs early and ensuring the coupling operates optimally and safely.
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Can a Damaged Shaft Coupling Lead to Equipment Failure and Downtime?
Yes, a damaged shaft coupling can lead to equipment failure and downtime in mechanical power transmission systems. Shaft couplings play a critical role in connecting rotating shafts and transmitting power between them. When a coupling becomes damaged or fails to function properly, several negative consequences can arise:
1. Misalignment Issues:
A damaged coupling may no longer be able to compensate for misalignments between the connected shafts. Misalignment can cause excessive vibration, increased wear, and premature failure of bearings and other connected components. Over time, these issues can lead to equipment breakdown and unplanned downtime.
2. Vibration and Shock Loads:
Without the damping properties of a functional coupling, vibrations and shock loads from the driven equipment can transmit directly to the driving shaft and other parts of the system. Excessive vibrations can lead to fatigue failure, cracking, and damage to the equipment, resulting in reduced operational efficiency and increased downtime.
3. Overloading and Torque Transmission:
A damaged coupling may not effectively transmit the required torque between the driving and driven shafts. In applications where the coupling is a safety device (e.g., shear pin couplings), failure to disengage during overloading situations can lead to equipment overload and damage.
4. Increased Wear and Tear:
A damaged coupling can lead to increased wear on other parts of the system. Components such as bearings, seals, and gears may experience higher stress and wear, reducing their lifespan and increasing the likelihood of breakdowns.
5. Reduced System Reliability:
A functional shaft coupling contributes to the overall reliability of the mechanical system. A damaged coupling compromises this reliability, making the system more prone to failures and unplanned maintenance.
6. Downtime and Production Loss:
When a shaft coupling fails, it often results in unscheduled downtime for repairs or replacement. Downtime can be costly for industries that rely on continuous production processes and can lead to production losses and missed delivery deadlines.
7. Safety Hazards:
In certain applications, such as heavy machinery or industrial equipment, a damaged coupling can create safety hazards for workers and surrounding equipment. Sudden failures or uncontrolled movements may pose risks to personnel and property.
Regular inspection, maintenance, and prompt replacement of damaged shaft couplings are essential to prevent equipment failure, minimize downtime, and ensure safe and efficient operation of mechanical systems. It is crucial to address any signs of coupling wear or damage immediately to avoid potential catastrophic failures and costly disruptions to operations.
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editor by CX 2023-11-07