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This Standard roller chain is available with pitches from 1/2 to 3 inches. Chain numbers are determined by multiplying the pitch by 80 (a 1/2 inch pitch chain would be a No. 40 chain). A hyphenated suffix indicates multiple strands.EPG will always adhere to it enterprise spirit of being practical, innovative, efficient and excellent to make the top international transmission drive.Standard strands have an even number of pitches, pin links, and roller links. A roller chain & sprocket strand can be shortened by removing links and lengthened by adding whole or a half links (offset links).60A22 sprocket is a durable, high quality, and precision A-Plate sprocket with 22-teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the