BlackStar 2BK40H STL - QD Sheave 3.3/8" Is 12/SPC8500 the same as

Is 12/SPC8500 the same as other brands' 12/SPC8500

The Gates 7/A49 Hi-Power II PowerBand V-Belts is a banded V-belt featuring Classical A-section dimensions

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"mpn":"272XL1770-D&D"

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BlackStar 2BK40H STL - QD Sheave 3.3/8" Is 12/SPC8500 the same asThe BlackStar 2BK40H STL is a 2 groove QD sheave for B section V belts, manufactured from cast iron. Requires an QD Type H Bushing (sold separately) to mount to your shaft. Quick disconnect design allows fast install and removal. Specifications Part Number 2BK40H STL Product Type QD Sheave Number of Grooves 2 Belt Profile B Section V Belt Bushing Required QD Type H Bushing Material Cast Iron Pitch Diameter 4. 0" Outside Diameter 4. 34" Compatible