BlackStar 140CTL60 - 140 Pitch Taper Lock Sprocket - 60 Tooth 1.1/8" The D&D Global 30T10/2120US is

The D&D Global 30T10/2120US is a synchronous timing belt with T10-pitch profile

The D&D Global 30AT5/610US is a synchronous timing belt with AT5-pitch profile

so the Megadyne BB255 interchanges with Gates

com/s/files/1/0666/7721/products/Micro_V_L_Section_1ea0b5c0-e0dd-415a-a1c4-72b3c0eb777e

"sku":"18/A91-D&D"

BlackStar 140CTL60 - 140 Pitch Taper Lock Sprocket - 60 Tooth 1.1/8" The D&D Global 30T10/2120US isThe BlackStar 140CTL60 is a 140 pitch Taper Lock 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 Taper Lock Bushing (sold separately). Specifications Part Number 140CTL60 Chain Pitch 140 Number of Teeth 60 Bore Type Plain Bore Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count Single Material Steel