130984 48-GB4020-21 IDL 4.25 RISE STL F/S B+ Belt Width: 48 in; CEMA Series: B; Idler Type: Steel Roll Flat Carrying; Roll Diameter: 4.00 in; Roll Material: Steel; Lubrication Type: Factory Sealed; Rise of Mounting Pad Surface to Center of Roll: 4.25 in; Allowable Bolt Spacing Center to Center on Ea; Product Line: Idlers-Flat Idlers; Series: Rex Classic Series B+; Model = 4 in