Diamond Technical Corner

  • What is "working load" and what role does it play in selecting roller chain?

    To start, we should clarify that working load, also known as chain pull, and tensile strength are not the same. Working load describes the amount of linear pull exerted on a chain by a drive while tensile strength is the amount of force required for that chain to fail. While these measurements can...Read More
  • Someone threw me a curveball, how do I convert pitch to feet?

    To answer this question, let's do a quick refresher on the ANSI part numbering system. The first digit(s) in each standard roller chain part number tells us the pitch of a chain in eighths of an inch. That means that an ANSI 120 chain, for example, has a pitch of 12/8s of an inch or 1.5 inches. ...Read More
  • How should you count the number of pitch in a strand of roller chain?

    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 ...Read More
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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

Duralube LIVE

Diamond Chain's maintenance-free product portfolio is expanding with the introduction of a new Duralube(R) series - Duralube LIVE, now available with both food grade, and standard grade lubrications.

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.