BlackStar 4-3V500SDS STL - QD Sheave copper and Jason Industrial 3/3V475

and Jason Industrial 3/3V475

Specification Value Part Number 2590-P14M-85 Belt Type Timing Belt Tooth Profile P14M RPP (curvilinear) Tooth Pitch 14 mm Number of Teeth 185 Belt Width 85 mm Pitch Length 2590 mm (Pitch Length) Construction Chloroprene (Neoprene)

"price":"4292

so a 3/CK250 from any major manufacturer shares the same cross-section and length and runs on the same sheaves

What is the Megadyne 11/C360 used for

BlackStar 4-3V500SDS STL - QD Sheave copper and Jason Industrial 3/3V475The BlackStar 4 3V500SDS STL is a 4 groove qd sheave for 3V section belts, manufactured from cast iron. Requires a QD Type SDS Bushing (sold separately). Specifications Part Number 4 3V500SDS STL Product Type QD Sheave Number of Grooves 4 Belt Profile 3V Outside Diameter 5. 00" Bushing Required QD Type SDS Bushing Material Cast Iron Approx. Weight 5. 700 lbs Pitch Diameter 50. 0" Compatible Belts 3V Bushing Required This sheave requires a QD Type SDS