Product Description
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Product Description
Our QLD series silent chain is a power transmission chain designed for high-speed and high-torque applications. It is known for its quiet operation, long life, and high efficiency.
The chain features a high-strength construction that allows it to handle heavy loads and high speeds without stretching or breaking.
When you need a specific design, we can provide customised solutions based on what you need. Whether you require specific features, plans, materials, or specifications, our team can work to ensure you get a chain that fully meets your needs.
Are you looking for other chains?
Leave your message below, and feel free to contact us!
FAQ
| Question 1: Are you a Manufacturer or a Trading Company? |
| Answer: We are a 100% chain manufacturer with 23 years of experience |
| Question 2: What should I provide to get a quotation? |
| Answer: 1. Type of the chain (with photos if available) 2. Pitch of the chain 3. Width of the chain 4. Length and quantity of the chain 5. Other specific requirements |
| Question 3: How long is your manufacturing and delivery time? |
| Answer: Products are usually finished in 2 weeks, depending on the type and quantity. Also, please get in touch with us to check the delivery time to your destination. |
| Question 4: How long is your guaranteed time? |
| Answer: We offer a three-year guarantee if you purchase chains and matched sprockets together. If you need chains only, a one-year guarantee can also be confirmed. |
| Question 5: Trade terms and Payment terms? |
| Answer: We accept EXW, FOB, DDU, Door to Door. Payment terms, such as T/T, L/C, and Western Union, are acceptable. We also provide the service of Online Trading in this B2B platform. |
Company Profile
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| Standard or Nonstandard: | Standard |
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| Application: | Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Food Machinery, Marine, Mining Equipment, Agricultural Machinery |
| Structure: | Tooth Chain |
| Samples: |
US$ 100/Meter
1 Meter(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What are the advantages of using an enclosed transmission chain?
Enclosed transmission chains offer several advantages in various applications. Here’s a detailed explanation:
1. Protection from Contaminants: An enclosed transmission chain provides protection against external contaminants such as dirt, dust, debris, moisture, and chemicals. The enclosure prevents these substances from entering the chain assembly, reducing the risk of wear, corrosion, and premature failure.
2. Enhanced Safety: The enclosure of the transmission chain adds an extra layer of safety. It prevents accidental contact with moving parts, reducing the risk of injuries to personnel working near the chain. This is particularly important in industrial settings where machinery and equipment are in operation.
3. Reduced Maintenance: Enclosed transmission chains require less maintenance compared to open chains. The enclosure helps to keep the chain lubrication intact for a longer duration, reducing the frequency of lubrication and maintenance tasks. This saves time, labor, and maintenance costs.
4. Longer Chain Life: The protection provided by the enclosure helps to extend the life of the transmission chain. By shielding the chain from external elements, such as abrasive particles or corrosive agents, the chain experiences less wear and corrosion, leading to increased durability and longevity.
5. Improved Performance: Enclosed transmission chains generally exhibit smoother and more consistent performance. The enclosure helps to maintain proper chain alignment and tension, reducing the risk of chain skipping, jumping, or derailing. This results in better power transmission, improved efficiency, and reduced downtime.
6. Application Versatility: Enclosed transmission chains can be used in a wide range of applications and industries. They are suitable for environments where cleanliness, protection, and safety are critical, such as food processing, pharmaceuticals, packaging, and automotive manufacturing.
It is important to note that the specific advantages may vary depending on the design, construction, and materials used in the enclosed transmission chain. Consulting with experts or manufacturers can provide more detailed information and guidance on selecting the appropriate enclosed chain for a particular application.

How does the wear resistance of a transmission chain affect its longevity?
Wear resistance is a critical factor that affects the longevity of a transmission chain. Here’s a detailed answer to the question:
1. Extended Lifespan: A transmission chain with high wear resistance is designed to withstand the effects of friction and abrasion, leading to an extended lifespan. It can resist wear caused by contact with sprockets, other chains, or external contaminants, resulting in reduced chain elongation and degradation over time.
2. Reduced Maintenance Requirements: Chains with excellent wear resistance require less frequent maintenance and replacement. They can operate reliably and efficiently for longer periods without significant degradation, reducing downtime and maintenance costs.
3. Improved Performance: A transmission chain with good wear resistance maintains its performance characteristics over time. It can effectively transmit power, maintain accurate speed ratios, and operate smoothly without excessive noise or vibration. This results in improved system performance and overall efficiency.
4. Resistance to Environmental Factors: Chains operating in harsh environments or exposed to contaminants, moisture, or chemicals are more susceptible to wear. A transmission chain with high wear resistance can withstand these environmental factors, ensuring reliable operation and minimizing the negative impact of wear-related issues.
5. Cost Savings: Using a transmission chain with excellent wear resistance can lead to cost savings in the long run. The reduced need for frequent chain replacements, repairs, and maintenance can result in lower operating costs and increased productivity.
It’s important to consider the specific application requirements and operating conditions when selecting a transmission chain. Factors such as load capacity, speed, operating environment, and compatibility with other system components should be evaluated to choose a chain with optimal wear resistance for maximizing longevity and performance.

What are the different types of transmission chains available?
There are several types of transmission chains available, each designed to suit specific applications and operating conditions. Here are some common types:
- Roller Chains: Roller chains are the most widely used type of transmission chains. They consist of inner and outer plates, pins, bushings, and rollers. The rollers help reduce friction and facilitate smooth motion.
- Silent Chains: Silent chains, also known as inverted-tooth chains or toothed chains, feature special tooth profiles that engage with corresponding sprockets. They are designed to minimize noise and vibration, making them suitable for applications requiring quiet operation.
- Leaf Chains: Leaf chains are constructed with interlocking links made of flat steel plates. They are known for their high tensile strength and resistance to fatigue, making them suitable for heavy-duty and high-load applications.
- Timing Chains: Timing chains are used in engines to synchronize the rotation of the camshaft and crankshaft. They have precise tooth profiles that engage with timing sprockets, ensuring accurate timing and efficient engine performance.
- Engineered Steel Chains: Engineered steel chains are highly specialized chains designed for specific industries and applications. They are often used in demanding environments such as mining, forestry, and material handling.
- Plastic Chains: Plastic chains are made of high-strength plastic materials, such as acetal or nylon. They offer benefits like corrosion resistance, lightweight design, and low noise operation. They are commonly used in food processing, packaging, and other industries with strict hygiene requirements.
These are just a few examples of transmission chain types. Depending on the specific application, there may be other specialized chains available to meet the unique requirements of different industries and machinery.
How do roller chains differ from other types of transmission chains?
Roller chains, also known as roller link chains, are a commonly used type of transmission chain that distinguishes itself from other chains in several ways:
- Design: Roller chains consist of inner and outer plates, pins, bushings, and rollers. The rollers, which are free to rotate, help reduce friction and wear, resulting in smoother and more efficient power transmission.
- Wide Application: Roller chains are versatile and widely used in various industries, including automotive, industrial machinery, agricultural equipment, and conveyor systems.
- High Load Capacity: Roller chains are designed to withstand high loads and offer excellent tensile strength, making them suitable for applications that require heavy-duty performance.
- Efficiency: Roller chains are known for their high efficiency in transmitting power. The roller design minimizes friction, resulting in less energy loss and improved overall efficiency.
- Cost-Effectiveness: Roller chains are relatively cost-effective compared to some other specialized transmission chains, making them a popular choice in many applications.
While roller chains have their advantages, it’s important to note that different types of transmission chains may be more suitable for specific applications. Factors such as load capacity, speed, noise level, and environmental conditions should be considered when selecting the appropriate transmission chain for a particular application.


editor by CX 2024-04-29