Belt Width: 42 in; CEMA Series: B; Trough Angle: 20 °; Idler Type: Steel Equal Length Roll Troughing; Roll Diameter: 5.00 in; Roll Material: Steel; Lubrication Type: Factory Sealed; Base to Centerline Height: 7 3/4 in; Allowable Bolt Spacing Center to Ce; Product Line: Idlers-Troughing Idlers, 20°-Equal Length Rolls; Series: Rex Classic Series B+; Model = 5 in