GT2 Timing Belt Idler Pulley - 20 Teeth, 5mm Bore, 10mm Width - Perfect For 3D Printers & CNC Machines

Hey there! If you're into 3D printing or DIY CNC projects, you're gonna love these GT2 timing belt idler pulleys. Each one comes with 20 teeth and a 5mm bore, made to fit 6mm or 10mm wide belts—super handy for keeping things running smooth. They're crafted from solid aluminum alloy, so they're lightweight but tough, with a nice oxidation finish to fight off rust. Oh, and they come with double bearings—motor-grade ones, actually—so you get less friction and a longer life. Whether you're building a printer, tuning a milling machine, or setting up a gear shaper, these little wheels help with precise positioning and smooth operation. Each pack includes 5 pulleys, so you've got spares or enough for a whole machine setup. No more slipping belts or shaky movements—just reliable, quiet performance. Great for makers, hobbyists, or small workshops!