Multi-strand V-belt

What is a multi-straand V-belt?

A multi-strand V-belt, also known as a multiple belt, is a belt made up of several V-belts. These individual V-belts are joined together in parallel by a strong connecting band. This means that the width, height and length of each strand is identical, but the total width is different. As the name suggests, this is a V-belt that uses several rubber strands to generate power and transfer it to the pulleys. This shape means greater reliability, load capacity and strength. In fact, a more uniform distribution of tension enables the machine to operate at higher speeds and with less noise.

What are the different types of multi-straand V-belts?

Multi-strand V-belts can be composed of several smooth V-belts or several toothed V-belts. The main multi-strand belts on offer are as follows:

Smooth V-belts :

• section "A" (13 mm x 8 mm)
• section "B" (17 mm x 11 mm)
• C" section (22 mm x 14 mm)
• SPZ" section (9.7 mm x 8 mm)
• SPA" section (12.7 mm x 10 mm)
• SPB" section (16.3 mm x 13 mm)
• section "SPC" (22 mm x 18 mm)
• 3V" section (9 mm x 8 mm)
• 5V" section (15 mm x 13 mm)
• 8V" section (25 mm x 23 mm)

Raw edge cogged V-belts :

• XPZ" cross-section (9.7 mm x 8 mm)
• XPA" section (12.7 mm x 10 mm)
• XPB" section (16.3 mm x 13 mm)
• XPC" section (22 mm x 18 mm)
• 3VX" section (9 mm x 8 mm)
• 5VX" section (15 mm x 13 mm)

Generally, the number of strands is indicated just before the "classic" reference of the smooth or notched V-belt. For example, 3-3V1250 is a smooth V-belt with a "3V" section and 3 strands.

How to choose a multi-strand V-belt?

When choosing this V-belt, it's important to take into account the part number on the original one. If no reference is visible, it's necessary to take the dimensions. To determine the dimensions, you'll need a caliper to measure the cross-section (height x width) of one strand. Once you've determined the cross-section, you'll need to measure its inside and/or outside length. To do this, you can use a messlat or tape measure. Once these dimensions have been taken, all you need to do is identify the number of strands required.

Find your multi-strand V-belt on 123Bearing

At 123Bearing, we offer a wide range of V-belts. Whether smooth, toothed, multi-strand or polyflex V-belts, we have several brands to suit all needs and budgets. What's more, when you buy from us, you benefit from a wide choice of mechanical parts (bearings, seals, lubricants, accessories) in stock, and fast, reliable delivery. Can't find the belt you need on our website? We invite you to contact our customer service department so that we can search for it with our manufacturers. Our motto: "You search, we find".