BlackStar 80BS57 1 7/16 K2S - 80 Pitch Finished Bore Sprocket - 57 Tooth - 1-7/16" Bore BB 190J15 is a standardized industry

190J15 is a standardized industry size

"price":"7748

so a 1190-14M-85 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

"name": "Does 1800-8M-20 ship from Houston

"mpn":"TB072053101867"

BlackStar 80BS57 1 7/16 K2S - 80 Pitch Finished Bore Sprocket - 57 Tooth - 1-7/16" Bore BB 190J15 is a standardized industryThe BlackStar 80BS57 1 7 16 K2S is a 80 pitch Finished Bore roller chain sprocket with 57 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1 7 16" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 80BS57 1 7 16 K2S Chain Pitch 80 Number of Teeth 57 Bore Size 1 7 16" Minimum Bore 1 3 8" Maximum Bore 2 15