BlackStar 2BK36H STL - QD Sheave Metric-Power V-Belts "text": "The 9/C270 is used

"text": "The 9/C270 is used for high-shock and high-vibration drives

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Is 3/A70 the same as other brands' 3/A70

com/s/files/1/0666/7721/products/240L_7b7c685c-45ec-49f9-8d29-9ee65323b935

com/products/gates-15-a43-hi-power-ii-powerband-v-belt"

BlackStar 2BK36H STL - QD Sheave Metric-Power V-Belts "text": "The 9/C270 is usedThe BlackStar 2BK36H 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 2BK36H 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 3. 6" Outside Diameter 3. 94" Compatible