Chain Couplings
Roller chain couplings offer a straightforward yet effective solution, providing a compact and flexible coupling suitable for a broad spectrum of applications. Due to their design, torque is evenly distributed throughout the roller chain and sprocket teeth, ensuring balanced torque distribution within the coupler during operation. Additionally, the slight clearance between the sprockets and chain means that precise shaft alignment is not mandatory for the coupling to function, although optimal alignment is recommended whenever possible.
Roller chain couplings offer a straightforward yet effective solution, providing a compact and flexible coupling suitable for a broad spectrum of applications. Due to their design, torque is evenly distributed throughout the roller chain and sprocket teeth, ensuring balanced torque distribution within the coupler during operation. Additionally, the slight clearance between the sprockets and chain means that precise shaft alignment is not mandatory for the coupling to function, although optimal alignment is recommended whenever possible.
Chain coupling typically consists of a double-row roller chain, two chain sprockets, and sometimes a coupling cover. At our facility, we stock both ANSI and Metric chain couplings, ensuring compatibility with a variety of systems and requirements. Trust in AGKNX roller chain couplings to provide reliable performance and versatility in your applications.
Roller Chain Coupling Size Chart
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| Type | Chain Type | Bore | Dimension of the Spro | Rated Torque GD^2x10^-3 (kgf.m^2) | Weight (kg) | DIM.OF.CLOSE | Rated Torque GD^2x10^-3 (kgf.m^2) | Weight (kg) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | L | I | S | D | O | C | A | B | ||||||
| KC-3012 | 06B-2x12 | 12 | 16 | 64.8 | 29.8 | 5.2 | 35 | 45 | 10.2 | 0.233 | 0.4 | 69 | 63 | 0.88 | 0.3 |
| KC-4012 | 40-2x12 | 12 | 22 | 79.4 | 36 | 7.4 | 35 | 62 | 14.4 | 1.020 | 0.8 | 77 | 72 | 1.03 | 0.3 |
| KC-4014 | 40-2x14 | 12 | 28 | 79.4 | 36 | 7.4 | 43 | 69 | 14.4 | 1.924 | 1.1 | 84 | 75 | 1.42 | 0.4 |
| KC-4016 | 40-2x16 | 14 | 32 | 87.4 | 40 | 7.4 | 50 | 77 | 14.4 | 3.285 | 1.4 | 92 | 72 | 2.41 | 0.4 |
| KC-5014 | 50-2x14 | 15 | 35 | 99.7 | 45 | 9.7 | 55 | 86 | 18.1 | 6.01 | 2.2 | 101 | 85 | 3.63 | 0.5 |
| KC-5016 | 50-2 x16 | 16 | 40 | 99.7 | 45 | 9.7 | 62 | 93 | 18.1 | 9.72 | 2.7 | 110 | 87 | 4.81 | 0.6 |
| KC-5018 | 50-2 x18 | 16 | 45 | 99.7 | 45 | 9.7 | 70 | 106 | 18.1 | 15.42 | 3.8 | 122 | 85 | 6.97 | 0.8 |
| KC-6018 | 60-2x18 | 20 | 56 | 123.5 | 56 | 11.5 | 85 | 127 | 22.8 | 40.21 | 6.2 | 147 | 105 | 16.84 | 1.2 |
| KC-6020 | 60-2x20 | 20 | 60 | 123.5 | 56 | 11.5 | 100 | 139 | 22.8 | 62.87 | 7.8 | 158 | 105 | 21.27 | 1.6 |
| KC-6022 | 60-2x22 | 20 | 71 | 123.5 | 56 | 11.5 | 110 | 151 | 22.8 | 93.45 | 10.4 | 168 | 117 | 28.97 | 1.8 |
| KC-8018 | 80-2 x18 | 20 | 80 | 141.2 | 63 | 15.2 | 110 | 169 | 29.3 | 142.03 | 12.7 | 190 | 129 | 52.13 | 2.5 |
| KC-8020 | 80-2 x20 | 20 | 90 | 145.2 | 65 | 15.2 | 120 | 185 | 29.3 | 204.90 | 16.0 | 210 | 137 | 82.39 | 2.9 |
| KC-8022 | 80-2 x 22 | 20 | 100 | 157.2 | 71 | 15.2 | 140 | 202 | 29.3 | 341.17 | 20.2 | 226 | 137 | 104.07 | 3.6 |
| KC-10020 | 100-2x20 | 25 | 110 | 178.8 | 80 | 18.8 | 162 | 233 | 35.8 | 646.29 | 33.0 | 281 | 153 | 233.87 | 4.6 |
| KC-12018 | 120-2x18 | 35 | 125 | 202.7 | 90 | 22.7 | 170 | 256 | 45.4 | 1,075.71 | 47.0 | 307 | 181 | 460.74 | 6.2 |
| KC-12022 | 120-2x22 | 35 | 140 | 222.7 | 100 | 22.7 | 210 | 304 | 45.4 | 2,454.50 | 72.0 | 357 | 181 | 803.00 | 8.0 |
Advantages of Roller Chain Couplings
Roller chain couplings are widely employed in various industrial applications to efficiently transmit power between two shafts. Here are the key benefits of roller chain couplings:
1. High Torque Transmission: Roller chain couplings excel at transmitting high torque loads between shafts with minimal power loss. The design of the roller chain enables smooth and efficient power transfer, even in high-torque applications such as heavy machinery, conveyor systems, and industrial drives. This capability ensures reliable operation and performance in demanding industrial environments, making roller chain couplings a preferred choice for high-torque requirements.
2. Misalignment Tolerance: A notable advantage of roller chain couplings is their ability to accommodate misalignment between connected shafts. Unlike rigid couplings that demand precise alignment for proper functioning, roller chain couplings can tolerate angular, parallel, and axial misalignments. This flexibility reduces the need for frequent adjustments and minimizes the risk of premature wear and failure. Consequently, equipment lifespan is extended, and maintenance costs are reduced.
3. Shock and Vibration Dampening: Roller chain couplings possess excellent shock and vibration dampening characteristics, making them ideal for applications where machinery is subjected to dynamic loads and varying operating conditions. The inherent flexibility of the roller chain allows it to absorb shocks and vibrations generated during start-up, sudden stops, or changes in load conditions. This capability protects connected equipment from damage and ensures smoother operation and enhanced reliability.
4. Easy Installation and Maintenance: Another significant advantage of roller chain couplings is their ease of installation and maintenance. These couplings typically consist of fewer components compared to other types of industrial couplings, simplifying the assembly process. Additionally, roller chain couplings require minimal lubrication and periodic maintenance, reducing downtime and maintenance costs associated with frequent servicing.
5. Cost-Effectiveness: Roller chain couplings provide a cost-effective solution for power transmission applications, particularly in industries where reliability, durability, and performance are essential. Compared to alternative coupling types such as gear couplings or elastomeric couplings, roller chain couplings often have lower initial costs and longer service lives.
Chain Coupling Applications
Roller chain couplings are mechanical devices used to connect two rotating shafts for the purpose of transmitting power while accommodating minor misalignments and providing flexibility. They consist of two sprockets connected by a roller chain, often with a flexible element or cover to enhance performance and durability. Here are some common applications and contexts where roller chain couplings are utilized:
- Industrial Machinery: Roller chain couplings are widely used in manufacturing and processing equipment such as conveyors, mixers, and mills. Their ability to handle high torque and misalignment makes them suitable for heavy-duty operations in industries like mining, pulp and paper, and steel production.
- Agricultural Equipment: In farming machinery like tractors, harvesters, and balers, roller chain couplings transmit power between components that may not be perfectly aligned due to rough terrain or wear over time. Their robustness and ease of maintenance are key advantages in this sector.
- Pumps and Compressors: These couplings are employed in systems requiring reliable power transmission, such as water pumps, air compressors, and hydraulic systems. They help absorb shock loads and vibrations, protecting the machinery from damage.
- Automotive and Transportation: Roller chain couplings can be found in some vehicle drivetrains or auxiliary systems, particularly in heavy-duty trucks or off-road vehicles, where they manage torque transfer under variable conditions.
- Power Generation: In smaller-scale power generation setups, such as diesel generators or wind turbine subsystems, roller chain couplings connect the prime mover to the generator, accommodating slight misalignments and reducing wear.
Installation of Roller Chain Coupling
- Preparation of Components: Before installation, ensure all roller chain coupling components—sprockets, chain, and cover—are clean, undamaged, and free of debris. Verify that the coupling matches the shaft sizes and torque requirements.
- Shaft Alignment: Align the two shafts that the coupling will connect, ensuring they are parallel and coaxial. Misalignment can cause excessive wear, vibration, or premature failure of the coupling system.
- Mounting the Sprockets: Slide one sprocket onto each shaft, ensuring a snug fit. The sprockets must be positioned so their teeth align properly when connected by the roller chain later.
- Securing the Sprockets: Fasten the sprockets to the shafts using the appropriate method, such as set screws, keyways, or taper-lock bushings. Tighten securely to prevent slippage during operation.
- Installing the Roller Chain: Wrap the roller chain around both sprockets, ensuring it engages fully with the teeth. Adjust the chain length if necessary, and connect the ends using a master link.
- Tension Adjustment: Check the chain tension to ensure it is neither too tight nor too loose. Proper tension allows slight slack, preventing undue stress on the chain and sprockets.
- Lubrication: Apply a suitable lubricant to the roller chain and sprockets to reduce friction and wear. Use a lubricant recommended by the manufacturer for optimal performance and longevity.
- Attaching the Cover: Place the coupling cover over the sprockets and chain, aligning it with the mounting holes. This protects the components from dust, debris, and accidental contact during operation.
- Final Inspection: Verify that all parts are securely fastened, the chain is properly tensioned, and the shafts remain aligned. Rotate the assembly by hand to check for smooth operation.
- Testing: Start the machinery at a low speed to test the coupling under load. Listen for unusual noises and monitor for vibration, stopping immediately if issues arise.
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Chain Coupling FAQs
Q: What is a chain coupling?
A: Chain couplings efficiently transmit power between two shafts, often installed off the end of a motor or gearbox for machinery connection.
Q: What are the advantages of roller chain coupling?
Their capacity to distribute torque evenly within couplers makes them ideal for low-speed, high-torque environments. Coupling chains minimize misalignments between engines and shafts by compensating for up to two degrees of alignment discrepancy.
Q: In what way are grid couplings different than chain couplings?
A: A grid coupling employs a metal grid inserted into grooves in two coupling halves. This cost-effective, torsionally soft metal coupling absorbs shock loads and dampens vibration. Conversely, a chain coupling utilizes a double-strand roller chain to connect the two hubs.
Additional information
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