Narrow V-belts

The so-called "SP" belts, also called narrow V-belts, are the narrowest and highest version of the classic belts. Its advantage is that the contact surface of the belts with the pulleys is more consequent, which allows them to transmit more power. The last letter of the reference, either Z, A, B or C, identifies the width (section) of the belt: SPZ = 9.7mm width; SPA = 12.7mm width; SPB = 16.3mm width; SPC = 22mm width.
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