BlackStar 120J60 LH - 120 Pitch QD Sprocket - 60 Tooth Light Duty Bored so a 6/C180 from any

so a 6/C180 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

The 3/B112 has a 21/32" width

"mpn":"16/SPA2227-D&D"

"mpn":"TB072053918113"

BlackStar 120J60 LH - 120 Pitch QD Sprocket - 60 Tooth Light Duty Bored so a 6/C180 from anyThe BlackStar 120J60 LH is a 120 pitch QD roller chain sprocket with 60 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a QD Type J Bushing (sold separately). Specifications Part Number 120J60 LH Chain Pitch 120 Number of Teeth 60 Maximum Bore 4 7 16" Bore Type QD Hub Style QD Bushing Required QD Type J Bushing Strand Count Single Material Steel