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Belt type AT5 polyurethane timing belts

5mm pitch · AT high-power teeth · Steel-corded PU

AT5 belts are polyurethane timing belts with steel tension cords and a larger, stiffer tooth than T5, giving more tooth contact on the pulley. That means higher power, less backlash and more precise positioning. You’ll find them on linear actuators, robotics, positioning and high-precision automation. Search by the code on the old belt, such as AT5-500-16, and use the filters to narrow it down by length or width.

  • Pitch5mm
  • ToothAT, high power
  • ExampleAT5-500-16
  • Teeth100 on a 500mm belt
  • WidthsCommonly 10, 16 and 25mm

Finding the right AT5 belt

Reading the codeAT5-500-16 is a AT5 belt with a 500mm length and a 16mm width. Some makers write it as 16 AT5/500 (width, profile, length), which means the same belt.

Counting teethLength divided by 5mm gives the tooth count, so a 500mm AT5 belt has 100 teeth. Check whether you need an endless belt or open length for clamping.

AT5 or T5?Both are 5mm pitch, but AT5 teeth are bigger and need AT pulleys. If the drive has T5 pulleys, stick with a T5 belt.

Tip: Many PU belts are supplied as open length or cut to width, and belts cut to width or length to order can’t be returned unless faulty, so check the pitch, length and width before ordering.

  • No code?Measure the pitch, count the teeth and measure the width. Our how to measure guide shows you how.
  • Other sectionsTry T2.5, T5, T10 or AT10 polyurethane belts.
  • Still not sure?Call 020 8138 2848 with the code or measurements and we'll find the right belt.
  • Buying for a business?Open a trade account for trade pricing on maintenance stock and repeat orders.
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