This is an aluminium GT2 timing pulley with 20 teeth, a 5mm bore and a slot for 6mm wide belt, the same drive pulley used on the X and Y axes of most 3D printers and plenty of small CNC and linear builds. GT2 means a 2mm tooth pitch, so it runs on standard 2GT / GT2 6mm belt. Twin flanges keep the belt centred, and two M3 grub screws lock it firmly onto a 5mm motor shaft so it holds position under load instead of slipping.
- 20 teeth, GT2 profile (2mm pitch)
- Runs on standard 2GT / GT2 6mm belt
- 5mm bore for NEMA 17 and 5mm shafts
- Twin flanges stop the belt walking off
- Two M3 grub screws fitted for a firm grip
- Machined aluminium, light and hard wearing
- Drop-in for 3D printer X and Y axes
- Great for CNC, plotters and linear motion
How to fit it
Slide the pulley onto your 5mm motor shaft and line one grub screw up with the flat on the shaft. Set the pulley height so it matches the idler and the belt path, then tighten both M3 grub screws with a 1.5mm hex key, the one on the flat first. Fit your 6mm GT2 belt between the flanges and tension it so it is firm with no sag.
Specifications
What's in the box
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Great for
Good to know: measurements are taken by hand, so please allow a millimetre or two of tolerance. This pulley is made for 6mm wide GT2 belt on a 5mm shaft, so check your belt width and shaft size before ordering. Shipped from our stock in Te Awamutu.