3L Section V-Belt – Size Chart

How to Read a 3L V Belt Number

A 3L belt number tells you both the belt section and its outside length. The 3L identifies the belt section, while the numbers following 3L represent the outside length in tenths of an inch.

For example, 3L350 has an outside length of 35 inches. A 3L225 has an outside length of 22.5 inches, while a 3L500 has an outside length of 50 inches.

3L V Belt Size Chart: Smallest to Largest

Use the chart below to find the correct 3L V belt based on its part number and outside length. The number following 3L represents the outside length in tenths of an inch.

What Are the Dimensions of a 3L V Belt?

3L V belts have a nominal 3/8 inch top width and a 7/32 inch height. They are smaller than many classical industrial V belt sections and are commonly found in light duty drives and smaller equipment.

How Do I Measure a 3L V Belt?

If the part number is still readable, identifying the replacement is simple. A belt marked 3L350, for example, is a 3L section belt with a 35 inch outside length.

If the markings have worn off, first confirm the belt’s approximately 3/8 inch top width. Then measure around the outside circumference of the belt. That outside measurement can be converted directly into a 3L part number. A belt measuring approximately 42 inches around the outside would correspond to a 3L420.

Need Help Finding a 3L V Belt?

If you are unsure which 3L V belt you need, MDS of Michigan can help identify a replacement based on your existing belt number, outside length, width, or equipment information. We supply V belts and other mechanical power transmission products for industrial, agricultural, commercial, and equipment applications.