BlackStar D40B84 - Double Strand 40 Pitch B-Hub Sprocket - 84 Tooth Pitch-240 "text": "2830V428 has a top

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The 13/B158 has a 21/32" width

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What is the Megadyne 6/B100 used for

BlackStar D40B84 - Double Strand 40 Pitch B-Hub Sprocket - 84 Tooth Pitch-240 "text": "2830V428 has a topThe BlackStar D40B84 is a 40 pitch double strand B Hub roller chain sprocket with 84 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Specifications Part Number D40B84 Chain Pitch 40 Number of Teeth 84 Minimum Bore 1 3 16" Maximum Bore 2 3 4" Bore Type Plain Bore Hub Style B Hub Strand Count Double Material Steel Outside Diameter 13. 66" Pitch Diameter 13. 372" Approx.