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"mpn":"12/B171-D&D"
com/s/files/1/0666/7721/products/T5_Stock_Photo_Edit_aee929ab-4849-46a1-9396-e239b406253c
so the D128 interchanges with Gates D128
"sku":"3210-3M-25-D&D"
BlackStar 60BS72 1 3/4 K2S - 60 Pitch Finished Bore Sprocket - 72 Tooth - 1-3/4" Bore Modified Curvilinear "mpn":"12/B171-D&D"The BlackStar 60BS72 1 3 4 K2S is a 60 pitch Finished Bore roller chain sprocket with 72 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1 3 4" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 60BS72 1 3 4 K2S Chain Pitch 60 Number of Teeth 72 Bore Size 1 3 4" Minimum Bore 1 3 8" Maximum Bore 2 7 16"
