The second most popular is British Standard Chain, in which chain pitch is measured in 1/16” roller-pin-center to roller-pin-center spacing increments.Īfter determining the chain pitch, note the number of chain strands used in the application: single strand, double strand, triple strand, etc. There are, of course, roller-chain standards other than ANSI, but they’re not commonly used in the U.S. 1 for how to measure chain pitch, then see Table I for ANSI Standard Chain pitch sizes. ANSI chain pitch is always measured in 1/8” increments. All chains are made to a given standard- with ANSI being the most common in the U.S. Each chain is identified by “pitch,” which refers to the measurement from one roller-pin center to the next roller-pin center of a given chain. Sprockets are designed for use with a specific chain. Proper replacement at the appropriate time will reduce downtime and save you money.
343", 3.In addition to helping you identify types of sprockets, the following guidelines will help you identify options that may offer improved performance and longer service life. 312", 3" Bolt Circle, P5263, Axle Sprocket, 25 thru 85 Teeth, 2" Bore, 4 Bolt Holes. 390", 2.312" Bolt Circle, P5256, Engine Sprocket, 18 thru 85 Teeth, 1" Bore, 3 Bolt Holes. 261", 5.25" Bolt Circle, P5248, Engine Sprocket, 18 thru 85 Teeth, 1" Bore, 3 Bolt Holes. P2286, Axle Sprocket, 35 thru 85 Teeth, 1.5" Bore, 4 Bolt Holes.
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