6.35mm Bore Aluminum Timing Pulley, 3mm Pitch, 15 Teeth, 15mm Belt Groove, HTD3M Compatible for 3D Printers, Fits Standard Stepper Shafts With Dual Set Screws, Durable, Low-Backlash Drive For Reliable 3D Printing With Precise Belt Tracking

This aluminum timing pulley is built for 3D printers and CNC rigs using HTD-3M belts. It matches standard 1/4" stepper shafts and uses dual set screws for a secure grip.

✅ Pitch: 3mm (HTD-3M profile)
✅ Teeth: 15
✅ Bore: 6.35mm (0.25 in)
✅ Belt width: 15mm (0.59 in)
✅ Material: Aluminum
✅ Fastening: 2 set screws included
✅ Common use: 3D printers, CNC, RepRap, Kossel Delta
✅ Pack size: 1 pulley

💡 What is a timing pulley used for?

A timing pulley is a handy drive component used in belt systems to transfer precise rotation from a motor to a belt-driven mechanism such as printers or small CNC machines. It locks belt movement to the pulley with a smooth, curved tooth profile to minimize backlash and slip.

- precise belt drive in stepper-based systems - minimizes backlash for accurate motion - compatible with HTD-3M belts in printers - fits standard 6.35mm bore shafts