BlackStar 2-5V550SDS - QD Sheave 2.3/8" 4/3VX250 is a banded v-belt

4/3VX250 is a banded v-belt used on industrial drives - fans and blowers

What are the dimensions of 4/3V1000

v=1630678273"

It is a direct replacement for Jason Industrial SPB1400

BlackStar 2-5V550SDS - QD Sheave 2.3/8" 4/3VX250 is a banded v-beltThe BlackStar 2 5V550SDS is a 2 groove qd sheave for 5V section belts, manufactured from cast iron. Requires a QD Type SDS Bushing (sold separately). Specifications Part Number 2 5V550SDS Product Type QD Sheave Number of Grooves 2 Belt Profile 5V Outside Diameter 5. 50" Bushing Required QD Type SDS Bushing Material Cast Iron Approx. Weight 7. 200 lbs Pitch Diameter 55. 0" Compatible Belts 5V Bushing Required This sheave requires a QD Type SDS Bushing