BlackStar 4C60SF STL - QD Sheave 40mm The 1920-8M-20 is a timing

The 1920-8M-20 is a timing belt from D&D Global's Dura-Sync Torque - 8M Series line

The Megadyne 16/3VX750 is a banded (16-rib) 3VX V-belt with a 75

3/16 Taper-Lock Bushings - English Sizes 78588403 is a taper-lock bushing

so a 1295L6 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

BlackStar 4C60SF STL - QD Sheave 40mm The 1920-8M-20 is a timingThe BlackStar 4C60SF STL is a 4 groove qd sheave, manufactured from cast iron. Requires a QD Type SF Bushing (sold separately) to mount to your shaft. Specifications Part Number 4C60SF STL Product Type QD Sheave Number of Grooves 4 Material Cast Iron Approx. Weight 18. 700 lbs Belt Profile C Bushing Required QD Type SF Bushing Pitch Diameter 6. 0" Outside Diameter 6. 40" Compatible Belts C Bushing Required This sheave requires a QD Type SF Bushing to