BlackStar 100B35 - 100 Pitch B-Hub Sprocket - 35 Tooth 55mm The D&D Global 15/A57 is

The D&D Global 15/A57 is a standard V-belt featuring Classical A-section dimensions

150-S8M-728 has a 8 mm tooth pitch

com/s/files/1/0666/7721/products/MXL_XL_L_H_Timing_Belt_fe74ee45-4747-42b4-bcf7-99e28315aafd

"sku":"TB072053752373"

so a 32T10/1240US from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

BlackStar 100B35 - 100 Pitch B-Hub Sprocket - 35 Tooth 55mm The D&D Global 15/A57 isThe BlackStar 100B35 is a 100 pitch B Hub roller chain sprocket with 35 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Specifications Part Number 100B35 Chain Pitch 100 Number of Teeth 35 Minimum Bore 1 1 4" Maximum Bore 3 5 16" Bore Type Plain Bore Hub Style B Hub Strand Count Single Material Steel Outside Diameter 14. 64" Pitch Diameter 13. 945" Approx. Weight 36. 9