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Pulley AT2.5 timing pulleys

2.5mm pitch · AT, polyurethane · Dunlop / Optibelt

AT2.5 timing pulleys are toothed pulleys for 2.5mm pitch AT-profile polyurethane timing belts, used on small positioning drives, instruments and automation. We stock Dunlop / Optibelt pulleys in a range of tooth counts and widths. Search by the pulley code, such as 16AT2.5/12-2(PB), and use the filters to narrow it down by teeth or width.

  • Pitch2.5mm
  • ToothAT, polyurethane
  • Example16AT2.5/12-2(PB)
  • BorePilot bore
  • BrandDunlop / Optibelt

Finding the right AT2.5 pulley

Reading the code16AT2.5/12-2(PB) is an AT2.5 pulley with 12 teeth (the number after the slash), supplied with a pilot bore (PB).

Size and speedThe number of teeth sets the pulley size and the speed ratio. Count the teeth on the old pulley and match the width to your belt.

AT or T?AT2.5 pulleys have a different tooth form from T2.5 pulleys. Match the pulley to the profile printed on the belt.

Tip: These pulleys have a pilot bore, ready to be bored and keywayed to your shaft by a machine shop.

  • Not sure of the size?Our how to measure guide shows you how to identify the belt section the pulley runs.
  • Other pulleysTry 3M, 5M, 8M, 14M, T2.5 or T5 metric timing pulleys.
  • Still not sure?Call 020 8138 2848 with the pulley code, belt section or shaft size and we'll find the right part.
  • Buying for a business?Open a trade account for trade pricing on maintenance stock and repeat orders.
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