BlackStar 2BK57 1 - Fixed Bore Sheave - 1" Bore AT5R Section com/s/files/1/0666/7721/products/Banded_VF_Belts_6271bc07-ca57-4b55-9402-fb7e2314fb41

com/s/files/1/0666/7721/products/Banded_VF_Belts_6271bc07-ca57-4b55-9402-fb7e2314fb41

com/products/pix-2-3v830-industrial-v-belt"

"mpn":"TB072053107630"

so the B210 interchanges with Gates B210

"mpn":"14AT10/1280US-D&D"

BlackStar 2BK57 1 - Fixed Bore Sheave - 1" Bore AT5R Section com/s/files/1/0666/7721/products/Banded_VF_Belts_6271bc07-ca57-4b55-9402-fb7e2314fb41The BlackStar 2BK57 1 is a 2 groove fixed bore sheave for B section belts, manufactured from cast iron. Features a 1" finished bore with keyway and set screws for direct shaft mounting. Specifications Part Number 2BK57 1 Product Type Fixed Bore Sheave Number of Grooves 2 Belt Profile B Bore Size 1" Outside Diameter 5. 45" Material Cast Iron Approx. Weight 5. 100 lbs Cross references: Browning 2BK57 1, Martin 2BK57 1, Maska 2BK57 1 Compatible