BlackStar 120F54 - 120 Pitch QD Sprocket - 54 Tooth 7.1/2" "text": "The AX74 is used

"text": "The AX74 is used for hvac blowers and air handlers

com/s/files/1/0666/7721/products/Banded_Cogged_Belt_3e07f671-f53b-4017-b95a-c824742d0e87

The 18/B255 has a 21/32" width

"sku":"1037K3-D&D"

BlackStar 120F54 - 120 Pitch QD Sprocket - 54 Tooth 7.1/2" "text": "The AX74 is usedThe BlackStar 120F54 is a 120 pitch QD roller chain sprocket with 54 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a QD Type F Bushing (sold separately). Specifications Part Number 120F54 Chain Pitch 120 Number of Teeth 54 Maximum Bore 3 15 16" Bore Type QD Hub Style QD Bushing Required QD Type F Bushing Strand Count Single Material Steel Outside