BlackStar BK30 3/4 STL - Fixed Bore Sheave - 3/4" Bore Split Housing What does the AT5US in

What does the AT5US in 25AT5/480US mean

Continental BB162

3/C225 Banded V-Belt

com/s/files/1/0666/7721/products/Twin_Power_Other_7f23293e-f199-4997-b9fc-4728341ba7b1

BlackStar BK30 3/4 STL - Fixed Bore Sheave - 3/4" Bore Split Housing What does the AT5US inThe BlackStar BK30 3 4 STL is a 1 groove fixed bore sheave for B section belts, manufactured from cast iron. Features a 3 4" finished bore with keyway and set screws for direct shaft mounting. Specifications Part Number BK30 3 4 STL Product Type Fixed Bore Sheave Number of Grooves 1 Belt Profile B Bore Size 3 4" Material Cast Iron Approx. Weight 1. 2 lbs Cross references: Browning BK30 3 4 STL, Martin BK30 3 4 STL, Maska BK30 3 4 STL Compatible