GT2 20 Teeth 4mm Bore Synchronous Pulley for 6mm Belt

The GT2 20T Synchronous Pulley with a 4mm bore is a high-precision drive component designed for 3D printers, CNC machines, and DIY robotics. Featuring a 20-tooth profile optimized for 2GT/GT2 timing belts, this pulley ensures smooth, slip-free linear motion with minimal backlash. It is an essential upgrade or replacement part for achieving high-accuracy prints and precise mechanical positioning in automated systems.

Constructed from high-grade aluminum alloy, this lightweight pulley reduces rotational inertia, allowing your stepper motors to run more efficiently. It comes equipped with dual M4 grub screw ports to secure the pulley firmly onto any 4mm motor shaft, preventing slippage during high-speed operations. It is fully compatible with NEMA 14 and NEMA 17 stepper motors, making it a popular choice for RepRap, Ender, and custom coreXY builds.

Features:

• High-Precision 20T Profile: Specifically engineered for GT2 2mm pitch belts to eliminate backlash.
• 4mm Inner Bore: Fits standard 4mm stepper motor shafts and linear axles perfectly.
• Durable Aluminum Construction: Offers excellent wear resistance, low inertia, and long-lasting performance.
• Dual M4 Locking Screws: Features two pre-installed M4 grub screws for a secure, slip-free shaft connection.
• Optimized for 6mm Belts: Designed with a 7mm wide groove to accommodate standard 6mm wide GT2 belts smoothly.

Package Includes:

1 x GT2 20T Synchronous Pulley 4mm Bore