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Optibelt  |  SKU: TB7000934

AT5-720-25 Optibelt Alpha Torque Polyurethane Timing Belt

  • AT5
  • 144 teeth
  • 720mm pitch length
  • 25mm wide
Regular price
£37.52
Inc. VAT. Shipping calculated at checkout.

Measuring Your Belt

Check the markings first. Most belts have their size printed on the back, for example A24, SPZ1000 or 8PK1200. Type that code into the search bar to find the exact match.

Markings worn off? Measure across the top of the belt for the width, and its depth. For the length, wrap a piece of string round the belt, mark where it meets, then lay the string flat and measure it.

Timing or ribbed belt? Count the teeth or ribs, and measure the gap between them.

Full step-by-step guide: How to measure your belt →

Still not sure? Call 020 8138 2848 and we’ll identify it for you.

Delivery and Shipping

We ship across the UK and worldwide. Choose an economical service if you can wait a few days, or express if the machine is stood still until the belt arrives. Delivery costs are worked out at checkout based on the weight of your order and where it's going. More Shipping Information

Maintenance team? Get trade prices and pay on account. Apply in two minutes.

The Optibelt Alpha Torque AT5-720-25 is an AT5 polyurethane timing belt with a 5mm pitch, a 720mm pitch length, 144 teeth and a width of 25mm. It’s made by Optibelt, our premier brand.

Optibelt Alpha Torque is Optibelt’s standard polyurethane timing belt range for reliable, accurate synchronous drives. Polyurethane timing belts have a wear-resistant thermoplastic polyurethane body with steel tension cords, so they hold their length, keep exact timing with no slip, need no lubrication and resist oil, grease and abrasion.

Specification

Brand and range Optibelt Alpha Torque
Profile AT5
Tooth pitch 5mm
Pitch length 720mm
Number of teeth 144
Width 25mm
Material Polyurethane, steel tension cords

Check it’s the right belt

  • The old belt should be marked AT5-720-25 (or AT5 720 25). 720 is the pitch length in mm and 25 the width in mm.
  • If the marking has worn off, count the teeth: this belt has 144. Multiply by 5mm to get the pitch length.
  • AT5 belts have a larger, stronger tooth than T5 and need AT5 pulleys; they won’t run on T5 pulleys.

Not quite the right size? The nearest sizes in this width are AT5-710-25 and AT5-750-25. Not sure? Call 020 8138 2848 and we’ll help you find the right belt.

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