BlackStar 80BTL56 - 80 Pitch Taper Lock Sprocket - 56 Tooth Trapezoidal v=1673987448"

v=1673987448"

so a 300-S8M-600 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

"sku":"11/BK139-D&D"

"name":"D&D Global 300-S8M-768 Timing Belt — S8M Section

so the Megadyne 15/3VX630 interchanges with Gates

BlackStar 80BTL56 - 80 Pitch Taper Lock Sprocket - 56 Tooth Trapezoidal v=1673987448"The BlackStar 80BTL56 is a 80 pitch Taper Lock roller chain sprocket with 56 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a Taper Lock Bushing (sold separately). Specifications Part Number 80BTL56 Chain Pitch 80 Number of Teeth 56 Bore Type Taper Lock Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count Single Material Steel