V-Belt Pulley 3L Pitch Diameter Not Applicable 3V Pitch Diameter Not Applicable 3VX Pitch Diameter Not Applicable 4L Pitch Diameter 4.5 in 5L Pitch Diameter 4.9 in 5V Pitch Diameter Not Applicable 5VX Pitch Diameter Not Applicable A Pitch Diameter 4.5 in AX Pitch Diameter 4.5 in B Pitch Diameter 4.9 in BX Pitch Diameter 4.9 in C Pitch Diameter Not Applicable CX Pitch Diameter Not Applicable Bore Diameter 1 in Bore Type Fixed Standards ISO For Belt Trade Size 4L 5L A AX B BX