Lfang Timing Pulley 25T 2GT Aluminum Flange 5-8mm Bore for GT2 Belt

Description

Product Overview

The Lfang 25‑tooth 2GT timing pulley is engineered for high‑precision power transmission in a compact form factor. Constructed from aerospace‑grade aluminum alloy, the pulley undergoes a surface oxidation treatment that creates a hard, corrosion‑resistant layer, extending service life even in humid or dusty environments. With a 2GT tooth profile and a 2 mm pitch, the pulley provides a smooth, low‑backlash engagement with GT2 synchronous belts, ensuring accurate motion control for demanding applications such as 3D printing, CNC machining, and robotic actuation.

Designed with flexibility in mind, the pulley offers five bore size options—5 mm, 6 mm, 6.35 mm, 7 mm, and 8 mm—allowing seamless integration into a wide range of motor shafts and spindle assemblies. The flange includes dual M4 mounting holes for secure attachment, while the overall outer diameter of 15.41 mm keeps the footprint minimal, making it ideal for tight‑space installations. The product ships in a compact 0.39 × 0.39 × 0.39‑inch package, weighing just 1.76 ounces, which simplifies inventory handling and reduces shipping costs.

Usage

Whether you are building a high‑resolution 3D printer or a precision CNC router, the Lfang timing pulley delivers consistent torque transfer with minimal vibration. Its compatibility with both 6 mm and 10 mm GT2 belt widths means you can select the belt that best matches your machine’s speed and load requirements. In 3D printers, the pulley’s low backlash helps maintain layer accuracy, reducing ghosting and improving surface finish. In CNC applications, the robust aluminum construction tolerates higher cutting forces, providing reliable positioning over long operating cycles.

The pulley is also suitable for stepping motor drives, linear actuators, and other motion‑control systems where synchronized rotation is critical. Its lightweight design reduces rotational inertia, allowing faster acceleration and deceleration without sacrificing stability. Installation is straightforward—simply align the bore with the motor shaft, secure with the M4 screws, and thread the GT2 belt through the 6 mm or 10 mm width slot. No additional tools or calibration steps are required, making it an excellent choice for both hobbyists and professional engineers.

Why Choose Us

Choosing the Lfang timing pulley means selecting a component that combines material excellence, precise engineering, and user‑centric design. Our aluminum alloy is sourced from certified suppliers and undergoes strict quality control to meet ISO‑9001 standards, guaranteeing dimensional accuracy and repeatability across every batch. The anti‑corrosion oxidation coating not only protects the pulley from rust but also reduces friction, contributing to higher transmission efficiency and lower heat generation during prolonged operation.

We stand behind our product with a responsive customer support team that offers technical assistance, fit‑verification guidance, and after‑sales service. Should you encounter any issues, our engineers are ready to provide troubleshooting steps or arrange a replacement, ensuring minimal downtime for your projects. Additionally, each pulley is inspected individually for tooth integrity and bore concentricity, delivering a ready‑to‑install component that meets the expectations of demanding industrial and scientific applications.

Key Features

• High‑quality aluminum alloy with oxidation coating for long‑lasting durability
• 25‑tooth 2GT profile provides precise, low‑backlash belt engagement
• Five bore size options (5‑8 mm) enable flexible mounting on various shafts
• Compatible with both 6 mm and 10 mm GT2 belt widths for versatile applications
• Responsive after‑sales support and technical assistance for seamless integration

FAQ

What belt width should I choose for my application?

The choice between 6 mm and 10 mm GT2 belts depends on the torque and speed requirements of your system. A 6 mm belt offers lower inertia and is ideal for high‑speed, low‑load scenarios such as lightweight 3D printer extruders. A 10 mm belt provides greater tensile strength and is better suited for higher‑load CNC or robotic applications where additional torque capacity is needed.

Can I use this pulley with a belt other than GT2?

The pulley is specifically designed with a 2 mm pitch to match GT2 synchronous belts. Using a different belt profile (e.g., T5 or MXL) would result in improper tooth engagement and could cause premature wear or slippage. For optimal performance, we recommend pairing the pulley with a GT2 belt of the appropriate width.

Is the pulley suitable for high‑temperature environments?

Aluminum alloy retains its mechanical properties up to approximately 150 °C (302 °F). While the oxidation coating adds some thermal resistance, prolonged exposure to temperatures above this range may affect dimensional stability. For most 3D printing and CNC applications, operating temperatures remain well below this threshold, making the pulley a reliable choice.

How do I install the pulley on a motor shaft?

First, select the bore size that matches your motor shaft diameter (5 mm, 6 mm, 6.35 mm, 7 mm, or 8 mm). Align the pulley’s central hole with the shaft, then secure it using the two M4 mounting holes provided on the flange. Tighten the screws evenly to avoid misalignment. After mounting, thread the GT2 belt through the pulley’s slot, ensuring the belt sits evenly across the teeth before tensioning.

What warranty does Lfang provide?

Lfang offers a one‑year limited warranty covering material defects and workmanship. If the pulley fails due to manufacturing issues within the warranty period, we will replace it at no cost. The warranty does not cover damage caused by improper installation, misuse, or external factors such as chemical exposure.