Chain Identification Guide
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Ramsey Products Corporation Silent Chain Identification Guide This guide is designed to help silent chain users and resellers to identify a sample piece of Ramsey silent chain and to determine all of the details necessary to re-order the product. If you have a Ramsey chain that is not described here, or a chain from another manufacturer, it is best to consult Ramsey before ordering. Also, if you have a chain part number, or a previous sales order number, this information is usually all that is required when re-ordering. 1) What is the chain type? By chain type we are referring to the product line, which could be: RPV, RP, SC, Duplex, Conveyor, or a competitors product. While many chains closely resemble one another, certain chain features can be used to distinguish them. Toothed Links Duplex chains can be easily identified by the presence of toothed links on both sides of the chain. If your chain does not appear to be Duplex , then go to the next page. Toothed Links If your chain is Duplex the shape of the links identifies which type: RP Duplex, SC Duplex, or Ramflex.

Conveying chains can be identified by the presence of bushings or spacers between rows of chain links or by a single oval shaped pin in the chain joint. Not all conveying chains have these components but nearly all silent chains with these components are conveyor chains. If your chain does not have spacers or a single oval pin, check to see if the links match one of the links shown below: Link-Spacer Construction Single Oval Pin—^ Link shape can be used to identify the type of conveyor chain. Extended Pitch If a silent chain is neither a conveyor or Duplex chain, then it is for PT, or power...

2) What is the guide type? A silent chain will have one of the following guide types based on the location of guide links: Side Guide Center Guide 2-Center Guide Note: Duplex chains do not contain guide links Chain pitch is easily estimated by measuring the distance between the centers of three consecutive pin heads and dividing by 2. Pitch is typically expressed in inches. 4) What is the width over the pin heads? width over heads 5) If the guide type is "side guide", what is the width between the guides? width between guides Ramsey Products

6)If the chain type is SC Duplex or RP Duplex, what is the assembly? Assembly is identified by counting the number of adjacent, similarly arranged links across the width of the chain. Rampower Duplex with 5-5-5 Assembly 5 links down 5 links up 5 links down 7) If the chain is conveyor, is it all link construction or link-spacer construction? Link-Spacer Construction