China manufacturer 12b-2 Double Roller Chain with Two Sprocket Assembly Chain Coupling

Product Description

chain coupling,  roller chain with sprocket assembly for transmission system.

 Chain couplings are suitable for the elastic transmission of rotating components over a wider speed range.
the couplings consist of 2 pre-drilled sprockets with the same number of teeth and a double roller chain DIN8171 with a straight spring lock
the simple opening of these couplings allows quick assembly and disassembly by simply loosening the connecting chain
all in one, the product offers an optimal price / ratio for numerous applications.
on request and depending on the application, the chain couplings can be supplied with hardened teeth as well as with a bore with an adjusting screw cap per wheel
 
Technical data list,

Products picture,

Packing picture,

FAQ

Q1. What is your terms of packing?
A: Generally, we pack our goods in single color box. If you have special request about packing, pls negotiate with us in advance, we can pack the goods as your request.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages 
before you pay the balance. Other payments terms, pls negotiate with us in advance, we can discuss.

Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.

Q4. How about your delivery time?
A: Generally, it will take 25 to 30 days after receiving your advance payment. The specific delivery time depends 
on the items and the quantity of your order.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and 
the courier cost.We welcome sample order.

Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q8: How do you make our business long-term and good relationship?
1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, 
no matter where they come from.

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Comparison of Roller Chain Couplings to Other Coupling Types

Roller chain couplings offer distinct advantages and characteristics that set them apart from other coupling types, such as gear or disc couplings. Below is a comparison of roller chain couplings with these two commonly used coupling types:

• Roller Chain Couplings:

– Roller chain couplings are flexible and can accommodate misalignments, making them ideal for applications where shafts may not be perfectly aligned.

– They offer good shock absorption, which is beneficial in systems with varying loads or frequent starts and stops.

– Roller chain couplings are relatively compact and lightweight compared to other couplings, making them suitable for space-constrained installations.

– These couplings are cost-effective and provide a reliable and efficient power transmission solution.

• Gear Couplings:

– Gear couplings are capable of handling high torque and can transmit power efficiently, making them suitable for heavy-duty applications.

– They have a high level of torsional rigidity, ensuring accurate torque transmission without backlash.

– Gear couplings are generally more expensive than roller chain couplings.

– They require accurate alignment during installation, which can be challenging in some applications.

• Disc Couplings:

– Disc couplings offer high torque capacity and torsional stiffness, providing precise torque transmission and no backlash.

– They have a compact design and are often used in applications with limited space.

– Disc couplings can handle misalignment to some extent but may not be as forgiving as roller chain couplings.

– They are generally more expensive than roller chain couplings.

When choosing the appropriate coupling type, it is essential to consider the specific requirements of the application, such as torque, misalignment, speed, space limitations, and budget constraints. Each coupling type has its strengths, and the selection should be based on the demands of the mechanical power transmission system.

Specialized Roller Chain Couplings for High-Torque or High-Speed Applications

Yes, there are specialized roller chain couplings designed to handle high-torque or high-speed applications. These specialized couplings are engineered to meet the specific demands of such industrial scenarios. Here are some key features and considerations for high-torque or high-speed roller chain couplings:

• Enhanced Strength: Roller chain couplings for high-torque applications are constructed using robust materials that offer higher tensile strength and improved fatigue resistance. This allows them to withstand the increased torque without experiencing premature failure.
• Optimized Tooth Design: High-torque roller chain couplings may feature specially designed sprockets and chain tooth profiles to ensure reliable torque transmission and minimize wear under heavy loads.
• Increased Chain Size: In high-torque applications, larger chain sizes may be used to handle the elevated power requirements. Larger chains provide more surface area for torque transmission and can accommodate higher loads.
• Heat Treatment: Some high-torque roller chain couplings may undergo heat treatment processes to improve hardness and wear resistance, making them suitable for demanding applications.
• Dynamic Balancing: For high-speed applications, roller chain couplings are often dynamically balanced to minimize vibration and prevent potential resonance issues that could occur at elevated rotational speeds.
• Lubrication: Proper lubrication is crucial for high-speed roller chain couplings to reduce friction and wear. Some designs may incorporate special lubrication systems to ensure smooth operation.
• Material Selection: High-speed roller chain couplings may use materials with lower mass and inertia to decrease the effects of centrifugal forces at high rotational speeds.

When selecting a roller chain coupling for high-torque or high-speed applications, it is essential to consider the specific operating conditions, torque requirements, rotational speeds, and any other factors that might impact the coupling’s performance. Consulting with coupling manufacturers or engineering experts can help identify the most suitable coupling for a particular application.

How to Select the Right Roller Chain Coupling for Specific Machinery or Equipment?

Selecting the right roller chain coupling for specific machinery or equipment involves considering several important factors. Here’s a step-by-step guide:

1. Torque Requirements: Determine the torque that the coupling needs to transmit between the driving and driven shafts. This will help you choose a coupling with the appropriate torque capacity for your application.
2. Speed: Consider the operating speed of the machinery. Higher speeds may require special high-speed roller chain couplings designed to handle the centrifugal forces.
3. Misalignment: Evaluate the degree of misalignment between the shafts. Different roller chain couplings have varying misalignment capabilities, so choose one that can accommodate the misalignment in your application.
4. Space Constraints: Measure the available space for the coupling. Some roller chain couplings are compact and may be suitable for applications with limited space.
5. Environmental Conditions: Take into account the operating environment, including temperature, humidity, and exposure to contaminants. Choose a coupling material and finish that can withstand the environmental conditions.
6. Load Characteristics: Assess the nature of the loads and any shock or vibration present in the system. For heavy-duty or shock-loaded applications, consider using heavy-duty roller chain couplings.
7. Alignment Maintenance: Evaluate the ease of alignment maintenance. Some couplings may require more frequent checks and adjustments to maintain proper alignment.
8. Backlash: Determine the level of backlash permissible in the application. Certain couplings may introduce minimal backlash, which is critical in precision systems.
9. Cost: Consider the overall cost, including the initial purchase price and long-term maintenance expenses. Opt for a roller chain coupling that provides the best value for your specific needs.

By carefully considering these factors, engineers and designers can identify the most suitable roller chain coupling that ensures reliable and efficient power transmission for their machinery or equipment.

editor by CX 2024-02-09