Variable Pitch V-Belt Pulley Bore Diameter 1 1/8 in For Belt Trade Size 4L 5L 5V 5VX A AX B BX For V-Belt Type Classical Cogged Wedge Material Cast Iron Maximum Pitch Diameter 5.7 in (4L A) 6 in (5L B) 6.4 in (5V) Number of Grooves 1 Outside Diameter 6.5 in 3L Pitch Diameter (Maximum) Not Applicable 3L Pitch Diameter (Minimum) Not Applicable 3V Pitch Diameter (Maximum) Not Applicable 3V Pitch Diameter (Minimum) Not Applicable 3VX Pitch Diameter (Maximum) Not Applicable