BlackStar H60BS18 3/4 K2S - 60 Pitch Finished Bore Sprocket - 18 Tooth - 3/4" Bore 8VX so a 12/8V2850 from any

so a 12/8V2850 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

300-S8M-584 has a 8 mm tooth pitch

The 2430V319 is a cogged v-belt from D&D Global's Dura-Extreme Variable Speed line

1115K5 Micro-V Belt

BlackStar H60BS18 3/4 K2S - 60 Pitch Finished Bore Sprocket - 18 Tooth - 3/4" Bore 8VX so a 12/8V2850 from anyThe BlackStar H60BS18 3 4 K2S is a 60 pitch Finished Bore roller chain sprocket with 18 teeth, precision manufactured from SAE 1045 steel with induction hardened teeth for extended wear life and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 3 4" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number H60BS18 3 4 K2S Chain Pitch 60 Number of Teeth 18 Bore Size