V-belts

V-belts transmit power between pulleys by friction of their flanks against the groove. They are used in motors, fans, pumps, compressors, mills and conveyors, where they absorb starts and slight misalignments and protect shafts from load peaks. There are classical profiles (Z, A, B, C, D), narrow profiles (such as 3V, 5V and SPB) and toothed versions, which adapt to small diameter pulleys.

The designation combines the section and length. In PHG 3V1000 the section is 3V and the following number expresses the length; in American sections like this it is measured in tenths of an inch. Dodge uses the same criterion: in 3VX250 the section is 3VX, the toothed variant of the narrow profile, followed by the length. Suffixes added at the end, as in PHG 3V1000X3 or PHG 3V1060X3, distinguish versions of the same section and length, so it is best to provide the complete part number.

To select a belt, respect the pulley section, number of grooves and the length resulting from the center distance. A section different from the groove seats poorly and wears quickly. In multi-belt drives, replace the complete set, with belts of the same length, so that load distribution is even. In addition, correct tensioning extends the life of both the belt and the equipment bearings.

We work with SKF and Dodge V-belts. To request a quote, send us the part number printed on the belt flank; if it is worn off, the section, length and number of grooves are enough, or the pulley measurements and center distance, and we will indicate the equivalence. Request a quote by part number at MR via WhatsApp or email and we will respond promptly.