How To Measure Belt Size For Pulley. Measuring belt length without an existing v belt wrap 1/4 inch nylon rope around both pulleys. This distance is also known as the center distance.
Harley davidson uses 1 ½”, 1 1/8”, 1” 20mm and 24 mm wide belts. Cr = half the smaller pulley circumference = π2⋅2r π 2 ⋅ 2 r , where 2r = larger pulley diameter. Or use the second calculator to figure the distance between two pulleys.
The width dimensions on our site do not include the hub of your pulley.
Harley davidson uses 1 ½”, 1 1/8”, 1” 20mm and 24 mm wide belts. Begin by holding your pulley vertically to expose the flat side, and measure from outside edge to outside edge with a ruler. Harley davidson uses 1 ½”, 1 1/8”, 1” 20mm and 24 mm wide belts. This is the actual length of the belt path.