SPZ V-belts are the smallest narrow section: top width approx. 9.7 mm and height 8 mm to DIN 7753 / ISO 4184. They work well on small-diameter pulleys, which is why they are found in machine tools, fans, pumps and workshop equipment.
SPZ V-belts - more power in a narrower and lighter drive
A narrow SPZ belt transmits more power than a classical belt of similar width, which allows narrower and lighter pulleys to be used and the entire drive to be made smaller. The standardised section makes replacement easier - the belt fits SPZ pulleys from any manufacturer.
SPZ narrow V-belts to ISO 4184 for SPZ pulleys
SPZ V-belts in various lengths, given in the product name. Pulleys for these belts can be found in the V-belt pulleys category, in the SPZ group, and cogged belts of this section - in the XPZ group.
Questions and answers: SPZ V-belt on small pulleys
What can replace an SPZ belt on very small pulleys?
An XPZ cogged belt - it has the same side profile, and the cogs increase its flexibility on small diameters.
