BlackStar 10-3V800SF - QD Sheave Pitch-80 What is the Megadyne 10/3V560

What is the Megadyne 10/3V560 used for

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com/s/files/1/0666/7721/products/3M_5M_8M_14M_HTD_Timing_Belt_6c6c7bad-7add-4b4e-ba79-cb8dd31941e4

"text": "150-S5M-590 is a timing belt used on positive

BlackStar 10-3V800SF - QD Sheave Pitch-80 What is the Megadyne 10/3V560The BlackStar 10 3V800SF is a 10 groove qd sheave for 3V section belts, manufactured from cast iron. Requires a QD Type SF Bushing (sold separately). Specifications Part Number 10 3V800SF Product Type QD Sheave Number of Grooves 10 Belt Profile 3V Outside Diameter 8. 00" Bushing Required QD Type SF Bushing Material Cast Iron Approx. Weight 24. 000 lbs Pitch Diameter 80. 0" Compatible Belts 3V Bushing Required This sheave requires a QD Type SF Bushing