This is a A-BX28 Cogged Classical V-Belt (5/8" X 31") PN: BX28Main Description As Following : A-BX28 Cogged Classical V-Belt (5/8" X 31") P.N: BX28 5/8 X 31 B Section Cogged Polyester CordColor: BlackDepth: 13/32"Length: 31Material: Polyester CordOC Length: 5/8" X 31"Thickness: 0.381Top Width: 5/8"Type: B Section CoggedWidth: 5/8 Crossed From: PL0648 BUNTON Found in Section & Models : Industrial Belts > BX-Section Cogged Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 5/8" x 31" B Section Cogged Polyester Cord Color: Black Depth: 13/32" Length: 31" Material: Polyester Cord OC Length: 5/8" X 31" Thickness: 0.381" Top Width: 5/8" Type: B Section Cogged Width: 5/8"