3L130 - V-Belt, 3L, (0.375In X 13In Oc)

Classical V-belt 3L-section (3/8" top width, light-duty fractional). The industry standard for general-purpose power transmission across commercial laundry equipment, HVAC systems, industrial machinery, and agricultural equipment. The trapezoidal cross-section wedges into the sheave groove as tension increases, providing secure grip without slippage under normal operating loads.

Q: How do I measure a V-belt for replacement?

A: Measure the outside circumference (OC) wrap a flexible tape around the outside of the belt. The part number encodes the belt section and length: for example, B46 is a B-section belt with a 49" outside circumference (the number is the "effective length" in inches, and OC = effective length + 3" for B-section). Always cross-reference with your equipment service manual for the correct part number.

Q: Should I replace all V-belts at the same time?

A: Yes on multi-belt drives, always replace the full set of belts together. Mixing a new belt with worn belts causes the new belt to carry disproportionate load (since old belts stretch longer than new ones), rapidly wearing out the new belt and the sheave grooves.