Product Description
SC Transmission Roller Chain Coupling KC Coupling KC 8018
The products are made of high quality alloy steel production. The plates are punched and squeezed bores by precision technology. The pin, bush, roller are machined by high-efficiency automatic equipment and automatic grinding equipment, then through heat treatment of carburization, carbon and nitrogen protection mesh belt furnace, surface blasting process etc. Assembled precision by Internal hole position, spin riveted by pressure to ensure the performance of the entire chain.
The chain coupling consists of a shaft coupling assembled from 2 rows of roller chain and 2 sprockets which engage them.
The chain ends can be simply connected or dismantled.
The original KANA structure is such that the case has been split into 2 perpendicularly to the shaft, and the cases 3012 to 8571 have a V-shaped groove on both sides with an O-ring inserted to prevent oil leaks.
Product Description
Availability:
* Standard roller chain
* OEM roller chain
High Performance:
√ Strong Ultimate tensile strength
√ Perfect surface treatment
√ Durable,Flexible
Quality Assurance:
ISO9001: 2015 and GB/T24001-2016 / ISO14001: 2015.
√Corrosion resistance
√Durable, Robust and Reliable
√Bad condition resistance
√Lower weight–high speed
Application industries:
√Manufacturing
√Agriculture
√Building Material
√Oil and Gas
√Technology and Science
Package:
Plastic bag+Neutral box +Plywood box
Adapted to:
* roller chains based on the requirements of ANSI B29.1
* Roller chain components are shot peened for greater fatigue resistance
* available with single strand roller chain,double strand roller chain,triple strand roller chain,four strand roller chain
* material used for roller chain 40mn
* heat treatment and special surface treatments are available on request
Product Parameters
| IZE | BORE | Pilot | A | d | O | L | I | S | B | C | BOLT | TORQUE ARM(Nm) | Max (rpm) | (kg.cm2) | WEIGHT |
| (kg) | |||||||||||||||
| 3012 | 12-16 | 12 | 69 | 25 | 45 | 64.8 | 29.8 | 5.2 | 63 | 10.2 | 6M | 190 | 5000 | 3.7 | 0.4 |
| 4012 | 12-22 | 12 | 77 | 33 | 62 | 79.4 | 36 | 7.4 | 72 | 14.4 | 6M | 249 | 4800 | 5.5 | 0.8 |
| 4014 | 12-28 | 12 | 84 | 43 | 69 | 79.4 | 36 | 7.4 | 75 | 14.4 | 6M | 329 | 4800 | 9.7 | 1.1 |
| 4016 | 14-32 | 14 | 92 | 48 | 77 | 87.4 | 40 | 7.4 | 75 | 14.4 | 6M | 429 | 4800 | 14.4 | 1.4 |
| 5014 | 15-35 | 14 | 101 | 53 | 86 | 99.7 | 45 | 9.7 | 85 | 18.1 | 8M | 620 | 3600 | 28 | 2.2 |
| 5016 | 16-40 | 16 | 111 | 60 | 93 | 99.7 | 45 | 9.7 | 85 | 18.1 | 8M | 791 | 3600 | 37 | 2.7 |
| 5018 | 16-45 | 16 | 122 | 70 | 106 | 99.7 | 45 | 9.7 | 85 | 18.1 | 8M | 979 | 3000 | 56.3 | 3.8 |
| 6018 | 20-56 | 20 | 142 | 85 | 127 | 123.5 | 56 | 11.5 | 105 | 22.8 | 10M | 1810 | 2500 | 137.3 | 6.2 |
| 6571 | 20-60 | 20 | 158 | 98 | 139 | 123.5 | 56 | 11.5 | 105 | 22.8 | 10M | 2210 | 2500 | 210.2 | 7.8 |
| 6571 | 20-71 | 20 | 168 | 110 | 151 | 123.5 | 56 | 11.5 | 117 | 22.8 | 10M | 2610 | 2500 | 295 | 10.4 |
| 8018 | 20-80 | 20 | 190 | 110 | 169 | 141.2 | 63 | 15.2 | 129 | 29.3 | 12M | 3920 | 2000 | 520 | 12.7 |
| 8571 | 20-90 | 20 | 210 | 121 | 185 | 145.2 | 65 | 15.2 | 137 | 29.3 | 12M | 4800 | 2000 | 812.4 | 16 |
| 8571 | 20-100 | 20 | 226 | 140 | 202 | 157.2 | 71 | 15.2 | 137 | 29.3 | 12M | 5640 | 1800 | 1110 | 20.2 |
| 1571 | 25-110 | 25 | 281 | 160 | 233 | 178.8 | 80 | 18.8 | 153 | 35.8 | 12M | 8400 | 1800 | 2440 | 33 |
| 12018 | 35-125 | 35 | 307 | 170 | 256 | 202.7 | 90 | 22.7 | 181 | 45.4 | 12M | 12700 | 1500 | 3940 | 47 |
| 12571 | 35-140 | 35 | 357 | 210 | 304 | 222.7 | 100 | 22.7 | 181 | 45.5 | 12M | 18300 | 1250 | 7810 | 72 |
| 16018 | 63-160 | 35 | 375 | 228 | 340 | 254.1 | 112 | 30.1 | 240 | 58.5 | 16M | 26400 | 1100 | 14530 | 108 |
| 16571 | 80-200 | 70 | 440 | 279 | 405 | 310.1 | 140 | 30.1 | 245 | 58.5 | 16M | 37100 | 1000 | 32220 | 187 |
| 20018 | 82-205 | 75 | 465 | 289 | 425 | 437.5 | 200 | 37.5 | 285 | 71.6 | 20M | 54100 | 800 | 50980 | 286 |
| 20571 | 100-255 | 90 | 545 | 263 | 506 | 477.5 | 220 | 37.5 | 300 | 71.6 | 20M | 77800 | 600 | 111100 | 440 |
| 24571 | 120-310 | 110 | 650 | 448 | 607 | 650 | 302.5 | 45 | 340 | 87.8 | 20M | 137000 | 600 | 310000 | 869 |
| 24026 | 150-360 | 140 | 745 | 526 | 704 | 700 | 327.5 | 45 | 350 | 87.8 | 20M | 186000 | 500 | 598500 | 1260 |
The biggest characteristic is that the chains can be customized in different standard and materials according to your requirements. Made from the steel and the up-to-date skills as well as precision procedures, the high quality roller chain can withstand strong pressure and high temperature.
Company Profile
FAQ
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Can chain couplings transmit both torque and linear motion?
No, chain couplings are primarily designed to transmit torque between rotating shafts and are not intended for transmitting linear motion. The main function of a chain coupling is to connect two shafts in order to transfer rotational power from one shaft to another.
Chain couplings achieve torque transmission through the engagement of the roller chain with the sprockets on the connected shafts. As the driving sprocket rotates, it imparts rotational motion to the chain, which in turn rotates the driven sprocket connected to the other shaft. This mechanism allows the torque to be transmitted from one shaft to the other.
However, chain couplings do not provide a means for converting or transmitting linear motion. They are not designed to handle axial displacement or linear forces. Attempting to use a chain coupling for transmitting linear motion would result in inefficient and unreliable operation, as the coupling is not designed to handle the specific requirements and forces associated with linear motion.
For applications that require the transmission of linear motion, there are other types of couplings specifically designed for this purpose. Examples include rack and pinion systems, linear couplings, or specialized linear motion couplings that incorporate mechanisms such as ball screws or lead screws. These couplings are designed to convert rotary motion into linear motion or to transmit linear forces directly.
It is important to select the appropriate coupling type based on the specific requirements of the application, whether it involves torque transmission or the transmission of linear motion. Consulting the manufacturer’s specifications, guidelines, or seeking expert advice can help ensure the correct coupling selection for a particular application.

What are the maintenance requirements for chain couplings?
Maintaining chain couplings is essential for their reliable and efficient operation over time. Regular maintenance helps prevent premature wear, reduces the risk of unexpected failures, and prolongs the lifespan of the coupling. Here are some key maintenance requirements for chain couplings:
- Lubrication: Proper lubrication is crucial for the smooth operation of chain couplings. Regularly lubricate the roller chain and sprockets with the recommended lubricant. Follow the manufacturer’s guidelines regarding the type of lubricant to use and the frequency of lubrication. Lubrication helps reduce friction, wear, and noise, and it extends the service life of the coupling.
- Inspection: Regularly inspect the chain coupling for signs of wear, damage, or misalignment. Check the sprockets, roller chain, connecting pins, and bushings or bearings for any abnormalities. Look for worn teeth, elongation of the roller chain, loose or missing fasteners, and excessive play in the coupling. Address any issues promptly to prevent further damage and ensure the coupling’s proper functioning.
- Tension Adjustment: Check the tension of the roller chain regularly. Improper chain tension can lead to premature wear and affect the coupling’s performance. Follow the manufacturer’s guidelines for the correct chain tension and make adjustments as necessary. Proper tension ensures optimal power transmission and helps accommodate misalignments.
- Alignment: Monitor the alignment of the shafts connected by the chain coupling. Misalignment can cause excessive stress on the coupling components and lead to premature failure. If misalignment is detected, take the necessary corrective measures, such as realigning the shafts or using alignment tools. Proper alignment promotes smooth operation and prolongs the life of the coupling.
- Contamination Control: Protect the chain coupling from contamination by keeping the surrounding area clean. Dust, dirt, debris, and moisture can affect the coupling’s performance and accelerate wear. Use appropriate covers or guards to shield the coupling from external contaminants. Regularly clean the coupling and remove any debris that may have accumulated.
- Periodic Replacement: Over time, the components of a chain coupling can experience wear and fatigue. Periodically replace worn or damaged components, such as sprockets, roller chains, connecting pins, and bushings or bearings, with new ones. Follow the manufacturer’s recommended maintenance schedule for component replacement to ensure the coupling’s reliability and prevent unexpected failures.
- Documentation: Maintain proper documentation of the maintenance activities performed on the chain coupling. Keep records of lubrication schedules, inspections, adjustments, and component replacements. This documentation helps track the maintenance history of the coupling and provides valuable information for future reference and troubleshooting.
By following these maintenance requirements, you can ensure the optimal performance, longevity, and reliability of your chain coupling. Regular maintenance minimizes the risk of unexpected downtime, reduces repair costs, and maximizes the efficiency of your machinery or equipment.

How to select the right chain coupling for a specific application?
Choosing the appropriate chain coupling for a specific application involves considering various factors to ensure optimal performance and reliable power transmission. Here are some key steps to guide you in the selection process:
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Identify Application Requirements: Begin by understanding the specific requirements of the application. Consider factors such as the torque load, speed, misalignment conditions (angular, parallel, axial), and environmental conditions (temperature, moisture, presence of corrosive substances).
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Determine Torque and Speed Requirements: Calculate or estimate the torque and speed requirements of the application. This information is crucial in selecting a chain coupling that can handle the transmitted torque and operate effectively at the required speed range.
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Evaluate Misalignment Compensation: Assess the expected misalignment conditions in the application. Determine the magnitude of angular, parallel, and axial misalignments that the chain coupling needs to tolerate. This will help in selecting a coupling design that can accommodate the anticipated misalignment without compromising performance or causing excessive stress on the machinery.
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Consider Space Limitations: Evaluate the available space for the chain coupling. Measure the shaft-to-shaft distance and ensure that the selected coupling can fit within the available space without interference with other components or structures.
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Assess Environmental Factors: Take into account the environmental conditions in which the chain coupling will operate. Consider factors such as temperature extremes, humidity, presence of dust or debris, and exposure to corrosive substances. Choose a chain coupling that is designed to withstand these conditions and is made from materials that offer adequate corrosion resistance.
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Consult Manufacturer Specifications: Review the specifications and technical information provided by reputable chain coupling manufacturers. Pay attention to factors such as torque ratings, speed limits, misalignment capabilities, material compatibility, and recommended maintenance practices.
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Consider Maintenance Requirements: Evaluate the maintenance requirements of the chain coupling. Assess factors such as lubrication needs, ease of inspection, and adjustment procedures. Choose a coupling that aligns with the maintenance capabilities and resources available in your application.
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Seek Expert Advice if Needed: If you are uncertain about the selection process or have specific application requirements that need expert guidance, consult with knowledgeable engineers or technical representatives from the coupling manufacturer. They can provide valuable insights and recommendations based on their expertise and experience.
By following these steps and considering the specific application requirements, you can select the right chain coupling that meets the torque, speed, misalignment, space, and environmental demands of your application. Proper selection will ensure efficient power transmission, reliable operation, and extended lifespan of the chain coupling.


editor by CX 2023-11-30