B72 V-Belt (5L750)
Understanding the Part Number
B – The B stands for a “B” section v-belt. This is considered a “Classic” v-belt style that has a top width of 21/32 (0.656) inches, but is commonly referred to as a 5/8 (0.625) inch belt. The thickness of the belt is 13/32 (0.406) inches.
72– 72 inches is the inside circumference of the 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 B72 belt is 75 inches (72+3).
Length (inch) 75
Length (mm) 1905
Length Type Outside 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