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The BlackStar 40BTL42 is a 40 pitch Taper Lock roller chain sprocket with 42 teeth
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BlackStar 10-8V2120M - QD Sheave M The BlackStar 40BTL42 is aThe BlackStar 10 8V2120M is a 10 groove qd sheave for 8V section belts, manufactured from cast iron. Requires a QD Type M Bushing (sold separately). Specifications Part Number 10 8V2120M Product Type QD Sheave Number of Grooves 10 Belt Profile 8V Outside Diameter 21. 20" Bushing Required QD Type M Bushing Material Cast Iron Approx. Weight 340. 000 lbs Pitch Diameter 21. 2" Compatible Belts 8V Bushing Required This sheave requires a QD Type M Bushing
