Liber Holdings, Dale Betz Can I “4L” and “5L” V-Belts with “A” or “B” V-Belts? Fractional horsepower v-belts 4L and 5L (FHP) can be interchanged to the equivalent “Classical” A or B v-belt. You can also use AX or BX notched style v-belts. Notched v-belts are about 3% more effici... v-belts Apr 9, 2023
