GT2 Timing Pulley 16T / 20T Aluminum M6 Bore (5mm / 6.35mm / 8mm) for 6mm & 10mm Belt – 2GT 3D Printer & CNC

Improve motion accuracy and reliability with this high-quality GT2 timing pulley, available in 16-tooth (16T) and 20-tooth (20T) configurations. Designed for 2GT timing belts, this precision-machined aluminium synchronous pulley is ideal for 3D printers, CNC machines, and motion control systems.

With multiple bore sizes (5mm, 6.35mm, and 8mm) and compatibility with both 6mm and 10mm belt widths, this pulley offers flexibility for a wide range of setups. The dual set screw design ensures a secure fit on motor shafts for stable and accurate movement.

Key Features

• Available in 16T and 20T tooth options
• Compatible with GT2 / 2GT timing belts
• Supports 6mm and 10mm belt widths
• Multiple bore sizes: 5mm, 6.35mm, 8mm
• Made from lightweight and durable aluminum
• Dual grub screws for secure shaft locking
• Precision-machined for smooth and accurate motion

16T vs 20T Pulley

• 16T – Higher torque, better for precision and slower movement
• 20T – Faster movement with slightly lower torque, common in most 3D printers

Compatibility

Suitable for most motion systems using GT2 (2GT) belts, including:

• FDM 3D printers (Ender, CR series, Prusa-style, and more)
• CNC machines and engravers
• DIY robotics and automation systems

Note: Compatibility depends on shaft diameter and belt type. Ensure the correct bore size and belt width for your setup.

Specifications

Common Applications

• 3D printer X/Y axis motion systems
• CNC routers and laser engravers
• CoreXY and Cartesian motion setups
• Robotics and linear motion projects

Important Notes

• Ensure the correct bore size matches your stepper motor shaft
• Align the pulley properly with the belt to prevent wear
• Tighten both set screws securely for stable operation

Tip: 20T pulleys are the most commonly used in 3D printers, offering a good balance between speed and precision.