BlackStar H50BS27 1 1/4 K2S - 50 Pitch Finished Bore Sprocket - 27 Tooth - 1-1/4" Bore TL2012 The 7/3VX355 Banded Cogged V

The 7/3VX355 Banded Cogged V Belt 3/8 x 35

so a 3/C345 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

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150-S8M-1224 has a 8 mm tooth pitch

"name":"D&D Global 150-S8M-856 Timing Belt — S8M Section

BlackStar H50BS27 1 1/4 K2S - 50 Pitch Finished Bore Sprocket - 27 Tooth - 1-1/4" Bore TL2012 The 7/3VX355 Banded Cogged VThe BlackStar H50BS27 1 1 4 K2S is a 50 pitch Finished Bore roller chain sprocket with 27 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 1 1 4" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number H50BS27 1 1 4 K2S Chain Pitch 50 Number of Teeth 27 Bore