BlackStar 80SF21 - 80 Pitch QD Sprocket - 21 Tooth TL1008 406 in Sheave Angle 40°

406 in Sheave Angle 40° Number of Bands 3 Length 127 in (Outside Circumference) Construction Synthetic Rubber

so the Megadyne 13/5V1500 interchanges with Gates

The 6/C440 is a banded v-belt from D&D Global's Dura-Prime Band Classical - C Series line

"name":"Gates 13/B88 Hi-Power II PowerBand V-Belts 909313088"

BlackStar 80SF21 - 80 Pitch QD Sprocket - 21 Tooth TL1008 406 in Sheave Angle 40°The BlackStar 80SF21 is a 80 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 SF Bushing (sold separately). Specifications Part Number 80SF21 Chain Pitch 80 Number of Teeth 21 Maximum Bore 2 15 16" Bore Type QD Hub Style QD Bushing Required QD Type SF Bushing Strand Count Single Material Steel Outside