Belt type 3V & 3VX narrow wedge belts
3/8″ (9.5mm) wide · Smooth 3V & cogged 3VX · Multiple leading brands
3V is the American narrow wedge belt, sized in inches and found on US-built equipment such as rooftop HVAC
units, compressors, pumps, fans and industrial machinery. 3VX is the cogged version, which bends round
smaller pulleys, runs cooler and transmits more power. We stock 3V and 3VX belts from several leading
manufacturers. Search by the code on the old belt, such as 3V500 or 3VX500, 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 3V belt
Reading the code3V500 means a 3V belt with a 50.0 inch effective (outside) length: drop the last digit or divide by ten to get inches. 3VX500 is the cogged version in the same length.
3V or 3VX?Both run in the same 3V pulleys, so a 3VX belt is a straight upgrade on a 3V of the same length. Choose 3VX for small pulleys or drives that run hot.
3V or SPZ?3V is close in size to the metric SPZ belt, but they’re made to different standards and lengths are measured differently. Match a 3V belt to 3V pulleys, and check your old belt’s code before ordering.
Tip: on drives with two or more belts, replace them all at once with a matched set of the same brand, and don’t mix 3V and 3VX on the same drive. For hard-to-reach drives, try a maintenance-free 3V belt that never needs re-tensioning.
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No code?Measure the top width and the outside length. Our how to measure guide shows you how.
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Other sectionsTry 5V & 5VX, SPZ or XPZ belts.
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Still not sure?Call 020 8138 2848 with the code or measurements and we'll find the right belt.
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Buying for a business?Open a trade account for trade pricing on maintenance stock and repeat orders.
