BlackStar 120J21 - 120 Pitch QD Sprocket - 21 Tooth Food Grade so a 3/CK90 from any

so a 3/CK90 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

6/B71 is a banded v-belt used on industrial drives - fans and blowers

"sku":"12/B181-D&D"

It also fits most 12" × 7/8" band saw wheels not listed here — contact us if you're unsure about your model

BlackStar 120J21 - 120 Pitch QD Sprocket - 21 Tooth Food Grade so a 3/CK90 from anyThe BlackStar 120J21 is a 120 pitch QD roller chain sprocket with 21 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a QD Type JA Bushing (sold separately). Specifications Part Number 120J21 Chain Pitch 120 Number of Teeth 21 Bore Type QD Hub Style QD Bushing Required QD Type JA Bushing Strand Count Single Material Steel Outside Diameter 10. 85"