China Professional 40 50 60 80 ANSI Standard Simplex Duplex Industry Equipment Transmission Chain

Product Description


Standard Double Pitch Roller chain


40Mn steel,304 stainless steel, 316 stainless steel and 201 stainless steel.


Standard chains and special chains, such as A or B series chains, roller chains, driving chains, conveyor chains, hoisting chains, agricultural chains, sprockets, gears, wheels and so on.


 A series(12.7-50.8mm pitches),B series (9.525-50.8mm pitches)and the heavy series.

Short pitch precision roller chain

Simplex Roller Chains&Bushing Chains: 

Duplex Roller Chains&Bushing Chains:

Triplex Roller Chains&Bushing Chains:


Chain link type

Standard links (without attachment) and non-standard links (with attachment).


A1: One-side,one hole cranked attachments.
A2: One-side,two holes cranked attachments.
K1: Both-side,one hole cranked attachments.
K2: Both-side,two hole cranked attachments.
D1: One-side,an extended pin on every outer link.
D3: One-side,two extended pin on every outer link.

Our Products Advantage

1. Every step from production order to the packing process has a strict quality inspection.
2. We have standard roller chain with 1.5 CHINAMFG (DIN. ANSI.); Non-standard roller chain (customized acording to customer drawings).
3. Export products with high quality and low price.
4.We have a good service before and after-sale.

1.Fast delivery: Standard products can be delivered in as fast as 20 days
2.Good service: timely reply, prompt quotation, responsible for the product
3.High cost performance: can maintain price stability for a certain period of time, bringing greater profits to customers
4.Good quality: production and testing have corresponding supervision to ensure product quality and get high praise from customers
5.OEM service: products can be customized according to drawings and requirements

We are responsible for the ordered products. We are very confident in the products we produce. Of course, if you have any problems after receiving the goods, you can contact us directly. We will confirm and negotiate in time to solve your difficulties.


Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Oil Blooming
Structure: Roller Chain
Material: Alloy
Type: Short Pitch Chain
US$ 35/kg
1 kg(Min.Order)

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Customized Request

duplex chain

What are the limitations of using duplex chains in certain applications?

While duplex chains offer many advantages, there are certain limitations to consider when using them in certain applications. Here are some key limitations:

  • Space Constraints: Duplex chains have a wider profile compared to other chain types, which can be a limitation in applications with limited space. It’s important to ensure that there is sufficient space to accommodate the duplex chain and its associated components.
  • Complex Installation: Installing and properly tensioning duplex chains can be more complex compared to simpler chain designs. It may require specific tools and expertise to ensure proper installation and tensioning, which can increase the overall installation time and complexity.
  • Higher Weight: Due to their design and construction, duplex chains can be heavier compared to other chain types. This additional weight may not be suitable for applications where weight reduction is a critical factor.
  • Increased Friction: Duplex chains can generate higher friction compared to some other chain types. This can lead to increased power loss and reduced overall efficiency in certain applications.
  • Maintenance Requirements: Duplex chains require regular maintenance, including lubrication and periodic inspection, to ensure optimal performance and longevity. Neglecting proper maintenance can lead to increased wear and reduced service life.
  • Cost: Duplex chains can be more expensive compared to standard chains or other power transmission options. The cost of purchasing and maintaining duplex chains should be considered in relation to the specific application requirements and budget.

It’s important to carefully evaluate the specific needs and constraints of the application when considering the use of duplex chains. Alternative chain types or power transmission solutions may be more suitable in certain situations. Consulting with experts or chain manufacturers can provide valuable guidance in selecting the most appropriate chain type for a given application.

duplex chain

How do duplex chains handle misalignment between sprockets?

Duplex chains are designed to handle a certain degree of misalignment between sprockets. However, excessive misalignment can lead to premature wear and reduced chain life. Here are some key points to understand:

  • Duplex chains can tolerate small misalignments between sprockets due to their flexible construction. The side plates and link connections allow for some angular and axial movement.
  • Minor misalignments can be accommodated through the natural flexing and articulation of the chain as it engages with the sprockets. This flexibility helps the chain to adjust and maintain proper engagement with the sprocket teeth.
  • However, it is important to note that excessive misalignment should be avoided. Excessive misalignment can cause the chain to experience increased wear, uneven load distribution, and increased stress on the chain components.
  • To minimize misalignment-related issues, it is recommended to ensure proper alignment of the sprockets during installation. This includes aligning the sprockets parallel to each other and ensuring the correct center-to-center distance.
  • Regular inspection and maintenance of the chain drive system are also essential to identify any misalignment issues early on and take corrective measures.
  • In cases where significant misalignment is unavoidable, special chain types or guides can be considered to mitigate the effects of misalignment and improve the chain’s performance and longevity.

Overall, while duplex chains can tolerate some misalignment, it is important to strive for proper sprocket alignment during installation and regular maintenance to optimize the chain’s performance and lifespan.

duplex chain

How do duplex chains handle shock loads and impact forces?

Duplex chains are designed to handle shock loads and impact forces encountered in various industrial applications. Here’s a detailed explanation of how duplex chains cope with these dynamic forces:

  • Robust construction: Duplex chains are constructed with high-quality materials, typically alloy steel, which provides excellent strength and durability. The chain’s solid and sturdy construction enables it to withstand sudden shocks and impacts without deforming or breaking.
  • Increased load distribution: The duplex chain’s dual-row design allows for better load distribution. When subjected to a shock load or impact force, the load is spread across two parallel rows of links, reducing stress concentration on individual links. This distribution of force helps minimize the risk of chain failure and ensures reliable performance.
  • Improved fatigue resistance: Duplex chains are designed to resist fatigue caused by repetitive loading and cyclic stress. The dual-row configuration enhances the chain’s fatigue strength, enabling it to withstand shock loads and impact forces without premature wear or failure.
  • Enhanced tensile strength: Duplex chains are manufactured with a higher tensile strength to handle the increased forces associated with shock loads and impacts. The material composition and manufacturing processes ensure the chain’s ability to withstand sudden and significant forces without stretching or breaking.
  • Selection of appropriate chain size and type: When considering shock loads and impact forces, it’s crucial to select the appropriate duplex chain size and type based on the specific application requirements. Consulting chain manufacturer’s guidelines and engineering standards can help ensure the chain’s suitability for the intended load and impact conditions.
  • Regular inspection and maintenance: To ensure the continued performance and reliability of a duplex chain in the presence of shock loads and impact forces, regular inspection and maintenance are essential. Inspecting for any signs of wear, checking proper lubrication, and promptly addressing any issues or damaged components can help prolong the chain’s lifespan and maintain its performance under dynamic loading conditions.

By combining robust construction, improved load distribution, fatigue resistance, and appropriate maintenance, duplex chains are well-equipped to handle shock loads and impact forces commonly encountered in heavy-duty applications. However, it’s important to consider the specific requirements of the application and consult with experts to ensure the proper selection and installation of duplex chains for optimal performance and longevity.

China Professional 40 50 60 80 ANSI Standard Simplex Duplex Industry Equipment Transmission Chain  China Professional 40 50 60 80 ANSI Standard Simplex Duplex Industry Equipment Transmission Chain
editor by CX 2023-10-10