Belt type SPC wedge belts
22mm wide · 18mm deep · Multiple leading brands
SPC is the largest of the standard wedge belts, made for heavy, high-power drives where a compact, powerful
belt is essential. You’ll find SPC belts on crushers, mills and quarry plant, large compressors and
pumps, big industrial fans and cooling towers, sawmills and heavy machinery. We stock SPC belts from leading
manufacturers, so you can choose the right belt for your drive. Search by the code on the old belt, such as
SPC4000, and use the filters to narrow it down by length or brand.
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OptibeltOur premier brand, for long life on demanding drives
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MegadyneHigh-quality Italian belts for industrial drives
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BandoJapanese quality for industrial and agricultural use
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GatesOne of the world’s best-known belt makers
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PIXGood-value belts for general-purpose drives
Finding the right SPC belt
Reading the codeSPC4000 means an SPC belt with a 4000mm datum length (Ld). Wedge belts are almost always sized by datum length in millimetres, which is measured at the belt’s pitch line rather than round the inside or outside.
Which brand?Every belt here fits the same SPC pulleys. Choose Optibelt for the longest life on hard-working or continuous drives, or a value brand for occasional-use machinery.
SPC or C?An SPC belt is 22mm wide and 18mm deep. A classical C belt is the same width but much shallower, at 14mm, and sits differently in the pulley, so measure the depth to be sure.
Tip: on drives with two or more belts, replace them all at once with a matched set of the same brand. For small pulleys, try a cogged XPC belt; for hard-to-reach drives, a maintenance-free SPC belt that never needs re-tensioning.
