BlackStar 6-5V900E STL - QD Sheave Pitch-2052 so a 3/BK131 from any

so a 3/BK131 from any major manufacturer shares the same cross-section and length and runs on the same sheaves

Prefer our Diesel Belting equivalent: 1440-8M-30 Timing Belt 8mm Pitch

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Prefer our D&D Global equivalent: D&D Global 10/B71 Banded V-Belt - B Section

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BlackStar 6-5V900E STL - QD Sheave Pitch-2052 so a 3/BK131 from anyThe BlackStar 6 5V900E STL is a 6 groove qd sheave for 5V section belts, manufactured from cast iron. Requires a QD Type E Bushing (sold separately). Specifications Part Number 6 5V900E STL Product Type QD Sheave Number of Grooves 6 Belt Profile 5V Outside Diameter 9. 00" Bushing Required QD Type E Bushing Material Cast Iron Approx. Weight 31. 400 lbs Pitch Diameter 90. 0" Compatible Belts 5V Bushing Required This sheave requires a QD Type E Bushing