Professional open short pitch transmission roller chain sprocket chain

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Cotter Type Chain

A cotter type chain, also known as a cottered chain, is a type of roller chain commonly used in various industrial and mechanical applications for transmitting power, motion, and force. It is characterized by the use of cotter pins to secure the chain's components, making it exceptionally robust and reliable.

The defining feature of cotter type chains is the use of cotter pins to secure the ends of the chain pins. These cotter pins are tapered metal pins that are inserted through holes in the ends of the chain pins and then hammered or compressed to create a secure and permanent connection. This unique design enhances the chain's strength and durability, making it suitable for heavy-duty applications.

The history of chains can be traced back to ancient civilizations where they were used for various purposes, including drawing water from wells and powering early machinery. Over time, chains evolved, and the Cotter Type Chain emerged as a significant innovation. This type of chain features cotter pins, which are tapered metal pins used to secure the chain's components, making it exceptionally sturdy and dependable.


Design and Construction

Chain Components

Cotter Type Chains consist of several essential components, each contributing to their overall strength and functionality. These components typically include:

  • Inner Plates: These plates provide the foundation for the chain, connecting the various components.
  • Outer Plates: Outer plates cover the inner plates and protect the chain's internal components.
  • Rollers: Rollers facilitate smooth motion by reducing friction between the chain and sprockets.
  • Pins: Pins hold the chain links together and allow them to pivot.
  • Bushings: Bushings are used in some chain designs to reduce wear and extend chain life.
  • Cotter Pins: Cotter pins are the defining feature of Cotter Type Chains, securing the ends of the pins.

Cotter Pin Assembly

The cotter pin assembly is a critical element that sets Cotter Type Chains apart. Cotter pins are tapered metal pins inserted through the ends of the chain pins and hammered into place, creating a secure and reliable connection. This unique design enhances the chain's strength and durability, making it suitable for heavy-duty applications.

Materials Used

Cotter Type Chains are typically constructed from high-quality materials to ensure their longevity and performance. Common materials used include:

  • Carbon Steel: Carbon steel chains offer excellent strength and durability, making them ideal for demanding applications.
  • Stainless Steel: Stainless steel chains are resistant to corrosion and are often used in environments where exposure to moisture is a concern.
  • Alloy Steel: Alloy steel chains combine strength with resistance to wear and fatigue, making them suitable for a wide range of applications.

Manufacturing Process

The manufacturing process of Cotter Type Chains involves precision engineering and stringent quality control measures. The steps include:

  • Material Preparation: Raw materials are selected and prepared according to specifications.
  • Forming: The chain components are formed and shaped to precise dimensions.
  • Heat Treatment: Heat treatment processes such as quenching and tempering are employed to optimize the material's properties.
  • Assembly: The chain components are assembled, and cotter pins are inserted and secured.
  • Quality Control: Each chain undergoes rigorous quality testing to ensure it meets industry standards.

Quality Control

Quality control is paramount in the production of Cotter Type Chains. Manufacturers employ strict quality control protocols, including dimensional inspections, load testing, and material analysis, to guarantee the chains' reliability and safety.


Cotter Type Chains find applications in a multitude of industries, contributing to the efficient operation of various types of machinery. Some of the prominent industries and applications include:

Automotive Industry

In the automotive industry, Cotter Type Chains are used in engine timing systems, camshaft drives, and transmission systems. Their precision and durability are crucial for ensuring the proper functioning of vehicles.

Agricultural Machinery

Agricultural equipment such as tractors, plows, and harvesters rely on Cotter Type Chains for tasks like tilling, planting, and harvesting. These chains endure the challenging conditions of agriculture.

Material Handling

Conveyor systems in factories and warehouses utilize Cotter Type Chains to transport goods efficiently. Their robust construction ensures consistent performance in demanding material handling environments.

Mining and Construction

Heavy machinery used in mining and construction, such as excavators and bulldozers, employ Cotter Type Chains to handle the rigors of excavation, earthmoving, and load-bearing tasks.

Food Processing

Food processing equipment relies on Cotter Type Chains for tasks like conveying, sorting, and packaging. The chains' resistance to corrosion and contamination is vital in these applications.

We are one of the best cotter type chain manufacturers. We have exported our products to clients around the world and earned a good reputation because of our superior product quality and after-sales service. We warmly welcome customers both at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!



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