BlackStar 40BS39 1 K2S - 40 Pitch Finished Bore Sprocket - 39 Tooth - 1" Bore Medium-Duty Pillow Block com/s/files/1/0666/7721/products/Banded_VF_Belts_ea8a1365-f28f-4b54-97aa-836a2bbdd104

com/s/files/1/0666/7721/products/Banded_VF_Belts_ea8a1365-f28f-4b54-97aa-836a2bbdd104

so a 3008-8M-20 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

1455L16 is a standardized industry size

"mpn":"3/BK206-D&D"

BlackStar 40BS39 1 K2S - 40 Pitch Finished Bore Sprocket - 39 Tooth - 1" Bore Medium-Duty Pillow Block com/s/files/1/0666/7721/products/Banded_VF_Belts_ea8a1365-f28f-4b54-97aa-836a2bbdd104The BlackStar 40BS39 1 K2S is a 40 pitch Finished Bore roller chain sprocket with 39 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 40BS39 1 K2S Chain Pitch 40 Number of Teeth 39 Bore Size 1" Minimum Bore 5 8" Maximum Bore 1 1 2" Bore Type Finished