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20/A77 is a banded v-belt used on industrial drives - fans and blowers
so the Megadyne B472 interchanges with Gates
v=1630681434"
"text": "100T10/2400US is a timing belt used on positive
BlackStar 80B43 - 80 Pitch B-Hub Sprocket - 43 Tooth JVS Adjustable Speed Sheaves 20/A77 is a banded v-beltThe BlackStar 80B43 is a 80 pitch B Hub roller chain sprocket with 43 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Specifications Part Number 80B43 Chain Pitch 80 Number of Teeth 43 Minimum Bore 1 1 4" Maximum Bore 3 1 4" Bore Type Plain Bore Hub Style B Hub Strand Count Single Material Steel Outside Diameter 14. 26" Pitch Diameter 13. 700" Approx. Weight 29. 4 lbs
