BlackStar 4C80E STL - QD Sheave 10-Groove 1136-8M-20 is a standardized industry

1136-8M-20 is a standardized industry size

The Megadyne 6/3VX750 is a banded (6-rib) 3VX V-belt with a 75

20/3VK1250 is a banded v-belt used on industrial drives — fans and blowers

"text": "The 7/D270 has a 1-1/4\" width

BlackStar 4C80E STL - QD Sheave 10-Groove 1136-8M-20 is a standardized industryThe BlackStar 4C80E STL is a 4 groove qd sheave, manufactured from cast iron. Requires a QD Type E Bushing (sold separately) to mount to your shaft. Specifications Part Number 4C80E STL Product Type QD Sheave Number of Grooves 4 Outside Diameter 8. 40" Material Cast Iron Approx. Weight 33. 000 lbs Belt Profile C Bushing Required QD Type E Bushing Pitch Diameter 8. 0" Compatible Belts C Bushing Required This sheave requires a QD Type E Bushing to mount