20 Tooth 8mm Bore GT2 Double Head Timing Aluminum Pulley

20 Tooth 5mm Bore GT2 Double Head Timing Aluminum Pulley is a high-precision dual-head pulley designed for 6mm GT2 timing belts in 3D printers, CNC machines, and robotics. The double-head design allows power transmission on both sides of the belt, enabling synchronized movement and multi-axis configurations. Made of lightweight aluminum with precision-machined teeth, it ensures smooth motion, minimal backlash, and high durability in continuous operation.

Key Features:

• Dual-Side Pulley: Supports synchronous dual-side belt drives for complex motion systems.
• High Precision Machining: Smooth, accurate tooth engagement minimizes backlash and slippage.
• Durable Aluminum Body: Lightweight, corrosion-resistant, and designed for long-term use.
• Integrated Grub Screws: Provides firm locking onto 8mm motor shafts.
• GT2 Compatibility: Suitable for 6mm GT2 belts used in 3D printing and automation projects.

Technical Specifications:

• Teeth Count: 20
• Belt Type: GT2 6mm width
• Bore Diameter: 8mm
• Material: High-grade Aluminum Alloy
• Fixing Method: 2 x M3 Grub Screws (hex)

Mechanical Specifications:

• Structure: Double-head pulley (grooves on both sides)
• Tooth Profile: GT2 trapezoidal (2mm pitch)
• Surface Finish: Anodized or brushed aluminum
• Weight: ~10g (varies slightly by batch)

Dimensions:

• Outer Diameter: Approx. 15mm
• Total Height: ~16mm
• Teeth Width: 2 x 6mm belt grooves
• Mounting Bore: 8mm round bore for NEMA17/stepper shafts

Applications:

• 3D Printers: X/Y/Z-axis timing belt synchronization for dual-head extrusion
• CNC Machines: Precision motion control in X-Y platforms
• Robotics: Drive pulleys in articulated arms or wheeled drive systems
• Plotters and Laser Cutters: Enables precise belt-driven axis movement

Equivalent Models:

• GT2-20T-5B-Dual: Generic equivalent from local or international vendors
• RepRap Aluminum Pulley: Used in Prusa i3 and other DIY 3D printers
• OpenBuilds GT2 Pulley: Compatible model for modular CNC frames

Package Includes:

• 1 x 20 Tooth 8mm Bore GT2 Double Head Aluminum Timing Pulley
• 2 x M3 Grub Screws (pre-installed)