Aluminum Timing Pulley 12mm Bore, 3mm Pitch, 26 Teeth, 15mm Wide Belt Groove For HTD3M 3D Printers, Precision Machined With Two Set Screws For Secure Stepper Motor Mount And Reliable Belt Drive

12mm Bore Aluminum Timing Pulley for HTD3M Belt - 1 Piece
✔️ 26 teeth, 3 mm HTD pitch, 12 mm bore, 15 mm belt groove

Designed for drive systems in 3D printers and CNC machines, this aluminum pulley is built for precise belt engagement and reliable torque transfer. It features a 12 mm bore, a 26-tooth HTD-3M profile, and a 15 mm wide belt groove, with two set screws to lock securely onto a motor shaft.

✅ 12 mm bore fits standard stepper shafts
✅ 26 teeth for HTD-3M 3 mm pitch
✅ 15 mm wide belt groove for 15 mm timing belts
✅ Aluminum construction delivers light weight and durability
✅ Two set screws secure the pulley to the motor shaft
✅ Suitable for Kossel Delta and other similar 3D printers

💡 What is a 12mm bore aluminum timing pulley used for in 3D printers?

It's a handy drive component for belt-based motion systems in hobby printers and CNC machines.

- HTD3M belt drive for 3D printers - two-set-screw mounting on 12 mm shafts - 26-tooth, 3 mm pitch for reliable timing