V-Belt Idler Sheave, Bearing Type Needle Roller, For V-Belt Type Classical, Bore Diameter 1/2 in, Face Width 0.656 in, For Belt Trade Size 4L, 5L, A, B, Outside Diameter 2.5 in, Pulley Material Cast Iron, Bearing Number Not Applicable, Compatible Tightener Shaft Grainger Part Number 6AGL5, Compatible Tightener Shaft Manufacturer Part Number N1, For Use With Tightener Shafts, Hub Diameter 1 9/16 in, Length through Bore 3/4 in, Material Fabrication Cast