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Diamond Chain E-Newsletter Archive



At the Diamond Chain Company, we manufacture the world's highest-performing roller chain. From the Wright Brothers, to Henry Ford, to global leaders of our time, Diamond Chain is the roller chain most trusted to perform, when performance matters most.
Case Study: Paper Log Accumulator Log

A paper towel log accumulating factory was looking for improved wear life on an accumulator machine. The machine was experiencing premature chain failure due to heavy shock loads.


Analyzing the company's operations, Diamond Chain determined that a key issue in the failure of their current chain was the carrier pins and that they should switch to Diamond series extended pin attachment chain. Diamond carrier pins are designed so that the pins are the actual chain pins. They are through-hardened, medium carbon pins that are specially heat treated for maximum ductility and toughness and are able to handle significant shock loads without failure.


After switching to Diamond series extended pin attachment chain, the paper towel log accumulating company was able to cut annual costs by $931.29.  



Q- How should you count the number of pitches in a strand of roller chain?


A- While "one at a time" and "correctly" seemed to be the most frequent, and apparently most amusing, answers from our engineering team - after some consideration, we thought this deserved an answer that was a bit more practical. 


One mistake that is commonly made when counting the number of pitches in a strand of roller chain is to include only exterior link plates, resulting in only half the number of pitches being counted.


So then how should the number of pitches be counted? Taking a quick time out for a review of definitions - the pitch of a roller chain is the distance between the center of one pin to the center of the next pin. To count the number of pitches in a strand of chain, we would start our count from the first pin on one end of the piece of chain and move to the next pin, which would be one pitch, and then on the next pin, which would be another pitch, and so on until the end of the strand of chain is reached.


Have additional questions about roller chain? Drop us an email at For further assistance, please contact Diamond Chain's customer service and application engineering teams at 1-800-872-4246.

The left-hand digit in the two digit part number denotes the number of 1/8" segments in the pitch.


For example, ANSI 80 chain would be 8 segments of 1/8" for a total of 1".


Diamond Chain employees will be volunteering Saturday, June 22, 2013 with Habitat for Humanity of Greater Indianapolis.  


Habitat for Humanity provides low-income individuals and families the life-changing opportunity to purchase and own simple, quality, affordable homes.


To learn more about Habitat for Humanity visit:




Diamond Chain Company uses a special heat treat process on its cotter pins, because of this, they should only be used once. Once a cotter pin has been removed, it should be replaced with a new one.
June Contest Diamond Chain Old Buliding 
Q- What are the addresses of the original, second, third, and current location of the Diamond Chain Company?
(Hint: They have all been located in Indiana.) 
Email me your answers by June 30th at
If you have the correct answers you will be entered into a drawing to win a Diamond Chain Company prize pack including a $5 Starbucks gift card. 
Please let me know if you have any questions. Thanks! 
-Paige w/ the Marketing Team
Meet the Diamond Team
Introducing:  Richard Ming
Hometown: Agoura Hills, California 

Education: CMI, University of Chicago. MBA, Pepperdine University. BS, California State University

Current Position: Manager - Global Customer Service and Inside Sales



Richard joined the Diamond team back in 2009, serving as the Marketing Manager. Richard then became the Director of Sales for the Greater China Region and spent two years in the position in Suzhou, China. After much success Richard was relocated back to the Indianapolis office where he is currently the Manager of Global Customer Service and Inside Sales.


While working for the Diamond Chain Company, Richard's favorite part of his job is being able to utilize his experience from leading Diamond's marketing department and Diamond's China sales department to be able to make a positive impact with Diamond's global customer service levels. Thank you for all of your hard work! 

 Diamond Chain Company 

402 Kentucky Ave, Indianapolis, IN 46225

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ASME / ANSI Roller Chain

Diamond Series

Diamond Chain's extensive ASME / ANSI product assortment provides industry leading wear life and is available in a variety of base materials, finishes, and lubrications.

Attachement Roller Chain

Infinity Series

Available in ANSI 25 through 240 and ISO 05B through 032B. Includes single and multi-strand, heavy series, and solutions for specialized applications.

Oil and Gas Chain

Sapphire Series

Includes ANSI 25 through 160 and ISO 05B through 048B single and multi-strand, and select maintenance-free, and attachment solutions.