BlackStar H100A42 - 100 Pitch A-Plate Sprocket - 42 Tooth AA Section "name":"D&D Global 385L19 V-Belt —

"name":"D&D Global 385L19 V-Belt — L Section

"sku":"1288-P14M-20-D&D"

Boston Gear DRS60B22

"mpn":"TB072053322507"

so a 6/B112 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

BlackStar H100A42 - 100 Pitch A-Plate Sprocket - 42 Tooth AA Section "name":"D&D Global 385L19 V-Belt —The BlackStar H100A42 is a 100 pitch A Plate roller chain sprocket with 42 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. Specifications Part Number H100A42 Chain Pitch 100 Number of Teeth 42 Bore Type Plain Bore Hub Style A Plate Strand Count Single Material Steel Hardened Teeth Yes Outside Diameter 17. 43" Pitch