Standard V-Belt Pulley 3L Pitch Diameter Not Applicable 3V Pitch Diameter Not Applicable 3VX Pitch Diameter Not Applicable 4L Pitch Diameter 18 in 5L Pitch Diameter 18.4 in 5V Pitch Diameter Not Applicable 5VX Pitch Diameter Not Applicable A Pitch Diameter 18 in B Pitch Diameter 18.4 in AX Pitch Diameter 18 in BX Pitch Diameter 18.4 in C Pitch Diameter Not Applicable CX Pitch Diameter Not Applicable For Bushing Type Quick Detachable Split Taper