T2.5 Pulley (5mm Bore / 20 Tooth / 6mm Belt) Expand

T2.5 Pulley (5mm Bore / 20 Tooth / 6mm Belt)



These 5mm Bore 20 Tooth Pulleys are compatible with 6mm wide T2.5 timing belts, to transfer rotational force into accurate linear motion along an axis.

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This small component is a T2.5 20 Tooth Pulley with a 5mm Bore for 6mm wide Belts with 2.5mm pitches. It is used to transfer rotational force into linear movement in conjunction with a toothed belt, and is often used for applications like 3D Printers and CNC machines that need to move an extruder, cutting tool or drill along a linear axis.

It is capable of coupling to shafts of motors like NEMA 17 Stepper Motors, with grub screws that ensure a firm grip that won’t slip or loosen over time. This helps to maintain reliable accuracy from stepper motors, which directly translates to better results in 3D Printing and CNC machining – or whatever other applications you are using these pulleys and belts for.


20 Tooth T2.5 Pulley  -  Technical Specifications:

  • Tooth Profile

– T2.5                                           

  • Belt Compatibility

– T2.5 6mm

  • No. of Teeth

– 20

  • Pitch of Profile

– 2.5mm

  • Material

– Aluminium

  • Bore

– 5mm

  • Grub Screw

– 2 x M3


Typical Applications for these 20 Tooth T2.5 Pulleys:

While these T2.5 Pulleys are specially designed to fit NEMA 17 stepper motor shafts for applications like 3D Printer linear axis movement, they can also be used for various other projects as well. Some of these other use cases include:

  • Creating automatically opening and closing storage shelves.
  • Building a tiny remote-control tank or similar vehicle that uses tracks instead of wheels.
  • Crafting a hands-free saw station that moves wood towards a sawblade via remote control, without having to put your hands close to the danger zone.

There are, of course, many other applications that these pulleys can be used for within a home or workshop environment. However, if you aren’t using these pulleys for 3D printing or CNC machines, you may want to take a look at our complete Range of Pulleys, as well as our Timing Belts, just to make sure you are getting the right pulley for the project you are working on.


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T2.5 Pulley (5mm Bore / 20 Tooth / 6mm Belt)

T2.5 Pulley (5mm Bore / 20 Tooth / 6mm Belt)