Flat Face Idler Bearing Type Needle Roller For Belt Type Back Side of V-Belts Flat Timing Bore Diameter 1/2 in Face Width 0.563 in For Belt Trade Size Not Applicable Outside Diameter 1.75 in Pulley Material Cast Iron Face Diameter 1.375 in Face Type Flat For Use With Drive Tighteners Hub Diameter 1 1/4 in Length through Bore 7/8 in Material Fabrication Cast