GT2 20 Teeth Timing Pulley 6.35mm Bore – Aluminum Drive Gear for 6mm Belt and NEMA 23 Stepper Motors

Overview 

The GT2 20-Teeth Aluminum Timing Pulley with a 6.35mm Bore is engineered to bridge the gap between high-torque industrial actuators and precision linear motion frameworks. Designed specifically for standard 6mm-wide GT2 timing belts, this pulley features a curved tooth profile that distributes the load evenly across the belt ribs.

By offering a native 6.35mm internal diameter, it drops directly onto 1/4 -inch drive shafts commonly found on NEMA 23 stepper motors, eliminating concentricity errors caused by imperfect DIY drilling or low-tolerance shaft adapters.

Key Features

• NEMA 23 & Geared Motor Ready: Machined with a strict 6.35mm (1/4“) internal diameter to perfectly fit larger, high-performance industrial motor shafts.

• True Anti-Backlash Profile: Curvilinear GT2 tooth design meshes perfectly with matching rubber belts, ensuring smooth direction reversals without backlash error.

• Secure Dual Grub Screws: Outfitted with two radial M3/M4 set screws positioned at 90^\circ angles to bite tightly into the shaft or flat D-profile faces, preventing rotational slippage.

• Flanged Aluminum Body: High-grade machined aluminum alloy construction features dual outer retention flanges to keep the timing belt centered and prevent walking.

Technical Specifications