Belt Width: 24 in; CEMA Series: B; Trough Angle: 20 °; Idler Type: Steel Equal Length Roll Troughing Training, Positive Arm; Roll Diameter: 5.00 in; Roll Material: Steel; Lubrication Type: Regreaseable; Base to Centerline Height: 8.15 in; Allowable Bolt ; Product Line: Idlers-Troughing Training Idlers, 20°-Equal Length Rolls-Positive Arm Type; Series: Rex Classic Series B+; Model = 5 in