B84 V-Belt For B-section v-belts, the outside circumference is found by adding 3 inches to the inside length of the belt.? So, the outside circumference of the B84 belt is 87 inches (84+3).
Length TypeOutside Circumference
Top Belt Width per strand (inch)0.66
Top Belt Width per strand (mm)17
Nominal Thickness (inch)0.41
Nominal Thickness (mm)10