BlackStar 2BK62H STL - QD Sheave TL5050 so the A57 interchanges with

so the A57 interchanges with Gates A57

Is 16/B123 the same as other brands' 16/B123

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The 350H300 is a timing belt from D&D Global's Dura-Premium Torque - H Series line

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BlackStar 2BK62H STL - QD Sheave TL5050 so the A57 interchanges withThe BlackStar 2BK62H 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 2BK62H 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 6. 2" Outside Diameter 6. 54" Compatible