In our Roller Chain Size Chart, we have compiled a comprehensive list of frequently requested roller chain configurations and sizes. Roller chain sizes and standards can vary significantly across industries and equipment categories. To aid in your search, we have created the most extensive roller chain size chart available, covering single to multiple strand designs, as well as duplex and specialty types of chains.
Size Charts by Chain Type
Use these quick links to navigate directly to the size chart specific to your chain type
Selecting the right replacement roller chain can be challenging, especially if you're unfamiliar with ANSI or ISO standards' size names or the specific roller chain dimensions like pitch, overall width, roller size, diameter, plate height, and thickness. Our roller chain size chart, located below, simplifies the process. It provides essential information to ensure an informed purchase, perfectly meeting your machinery's strength and load-carrying capacity requirements.
Identifying Roller Chain Size
Measuring a roller chain is the first and most important step in its identification. We have created step-by-step written and video instructions to help you identify your roller chain and compare it to the chain sizes listed in the size chart. If you cannot find your chain size, please refer to our
metric roller chain size chart or feel free to give us a call.
USA Roller Chain and Sprockets is one of the nation’s leading suppliers of roller chain and industrial power transmission components. The Roller Chain Size Chart displayed here presents the most complete dimensions for each type of roller chain. Each size in the "Chain Size" column serves as a clickable link, directing you to a specific roller chain size category. Within each specific roller chain size category, you can explore the various chain quality levels we offer, including Economy, General Duty Plus, and Premier, along with detailed pricing information.
Single-Strand Roller Chain Size Chart
The roller chain size chart below offers comprehensive dimensions and specifications for each single-strand standard ANSI chain size. Whether you're seeking a replacement or determining the appropriate size for your equipment design, this chart streamlines the process, allowing you to seamlessly match your measurements with the provided dimensions for accurate chain identification. For your convenience, you may view the chart below or download and print it out.
Fig. 1. Single Strand Roller Chain Drawing (Side View)Fig. 2. Single Strand Roller Chain Drawing (Top View)
How to use this chart:
Measure the pitch (P), roller width (W), roller diameter (D), overall width (A), plate height (H), plate thickness (T), and pin diameter (E) of your chain.
Match your measurements to the dimensions in the chart to determine the standard size chain you need.
Consider the ultimate tensile strength and weight per foot specifications to ensure that the chain you select has the required load-carrying capacity and optimal performance for your application.
Single-strand roller chains are also commonly called simplex roller chains. Unlike the other guys who supply chains that are just hot-dipped and heat-treated, we offer roller chains with additional performance-driven features such as solid bushings and solid rollers, shot-peened components and factory preloading to dramatically reduce chain stretch.
Moving into a double-strand roller chain means considerably higher tensile strengths and working loads, these chains are also commonly referred to as duplex roller chains. These chains can be found in various drive and conveying applications, all of our simplex and duplex roller chains also are available in anti-corrosive and
attachment roller chain configurations. Browse Double-Strand Roller Chains
Triple-strand roller chains, also commonly known as triplex chains, offer superior strength and are made for some heavy-duty applications. We supply these chains in applications such as drilling, pump, high-torque, mixers and wastewater. Having three sets of rollers that come into contact with each sprocket tooth pitch means that it has nearly three times the capacity to transfer energy from one point to another. Browse Triple-Strand Roller Chains
Four-strand roller chains, also commonly called quad-strand or quadruple roller chains, are used for some serious equipment! We also stock these chains in an API Certified configuration for oil and gas applications.
Browse Four-Strand Roller Chains
The five-strand roller chain is also commonly referred to as quintuple roller chain and is one of the less commonly used types of chain. However, we stock most of the standard sizes of five-strand roller chains along with the accompanying connecting links and offset links. Browse Five-Strand Roller Chains
Six-strand roller chains are also referred to as sextuple roller chains. These chains can be found in various applications such as mining, tunnel drilling, mixers and heavy-duty conveying and drive units.
Browse Six-Strand Roller Chains
Eight-strand roller chains are also referred to as octadic roller chains. These chains can be found in various applications such as mining, tunnel drilling, mixers and heavy-duty conveying and drive units, much like six-strand roller chains.
Browse Eight-Strand Roller Chains
Ten-strand roller chains are also referred to as decuple roller chains. Found in the heaviest-duty chain applications in the world, our 10-strand roller chains are made to outlast and outperform other chains. Talk to our sales team consultants today about your chain application to make sure you get the best chain for your specific application!
Browse Ten-Strand Roller Chains
Twelve-strand roller chains are also referred to as duodenary roller chains. Found in the heaviest-duty chain applications in the world, our 12-strand roller chains are made to outlast and outperform other chains. Talk to our sales team consultants today about your chain application to make sure you get the best chain for your specific application!
Browse Twelve-Strand Roller Chains
Single-strand heavy-duty roller chains differ by having a thicker side plate. This added material means that the chain can withstand higher shock loads and are ideal for applications such as heavy equipment, agricultural machinery, grills and more. The single-strand heavy roller chains are capable of running on the same sprockets as standard roller chains. Browse Single-Strand Heavy-Duty Roller Chains
Double-strand heavy roller chains are also commonly referred to as duplex heavy chains and offer superior strength and shock load resistance when compared to their simplex counterpart. Having double the side plates and double the number of rollers that come into contact with each sprocket tooth pitch means that these chains have nearly double the strength!
Browse Double-Strand Heavy Roller Chains
Double pitch carrier type chains are also referred to as oversized roller double pitch chains because the roller extending past the sidebars. This creates a chain that is capable of conveying product from one point to the next with the use of the rollers. Browse Double-Pitch Carrier Type Chains
The core function of a roller chain is to transfer energy from one point to another to the highest degree. A Roller chain is especially useful in applications that require the transfer of energy to be consistent over a long period of time, or where a shift in direction from linear to rotary is needed, and simply for moving objects from one point to another. Our chains offer superior transmission of energy and function with features such as solid bushings, solid rollers, heat-treated components, and factory pre-loading. View our
premium roller chain selection to learn more about our chains or watch the below video.
Roller Chain Sizing
Sizing the right roller chain for your application comes down to a few key factors:
Tensile Strength - The tensile strength of a roller chain is the rating that represents the force required for breaking the chain. There are three different tensile strength values; minimum, average, and ultimate. The minimum tensile strength is the lowest value of breakage across several testes done on the chain, while the average tensile strength is the median breaking point between the test, and the ultimate tensile strength is the highest load that any particular chain within the tests was able to withstand. Not all roller chains possess the same strengths even from the same manufacture and batch. Almost every manufactures will display the tensile strength as the "ultimate tensile strength" to pose that theirs is stronger than a particular competitor however, we typically display our tensile strength ratings as the minimum tensile strength so undersized and safety factor calculations can be done accurately.
Working Load - The working load is the strength measurement needed when sizing a roller chain for an application. This is the recommended load for a chain with several factors in play. Sizing a roller chain off of tensile strength alone is not only dangerous but will disappoint when it comes to the desired service factor.
Application Conditions - It is important to take a look at certain conditions such as temperature, corrosion, abrasion, and hours in operation. Standard roller chains are manufactured from carbon steel, meaning that their temperature range is limited and they will corrode in abrasive and corrosive applications. For high and low-temperature applications as well as corrosive and abrasive applications, we supply problem solver roller chains that will meet individual application requirements. For dirty or dusty applications we also supply sealed o-ring chains to keep lubricants in and corrosion out, check out our complete roller chain line by clicking here! Additionally, our corrosion resistant roller chains can be found here.
Speeds/ Torque - Each roller chain has a speed and torque limit. To get this information contact our customer service team with your chain size and we will provide documents with this information.
Dimensional Requirements - Sometimes applications can be restricted on space requirements, when picking a roller chain size it is important to not go outside of your applications specific dimensional circle allowed for the chain. We also stock miniature roller chains for highly compact roller chain applications.
The chains displayed on the roller chain size chart as well as our other roller chain sizes are also available in stainless steel, plastic materials, nickel-plated, coated, zinc plated, lube-free, among other option directly from stock and upon request. Besides roller chains we offer; sprockets, bearings, belts, motors, reducers, electrical, shafting, sensors, robotics, specialty products, MTO products, and more. We have inventory available throughout the United States and Canada, along with an export division (Se Habla Espanol) servicing Central / South America along with Africa, Europe, Asia, and Australia.
We set ourselves apart by being a consultant based supplier, not just order takers. As well as, being easy to work with and get set up within a timely manner. In-house we have over 100+ years of industry experience, training programs for new products, and data gathered from all around the globe to make sure we have the capabilities on providing our customers with the best service. For more information or to get a formal quote on any of the product, we offer please contact us and one of our customer service representatives will be happy to assist you.
Disclaimer: Actual tensile strengths listed on the roller chain size chart above may vary based on the quality selected by the end-user.
Requesting Roller Chain
If you have identified the size you need based off of the above chart that's great! Just fill out your contact information, size, and quantity and we will contact you. If not, please fill out the dimensions needed and we will identify the roller chain size you need.
