Timing Pulley ZJkHAOJ 20 Tooth 3GT with 8mm Bore for 15mm Belt

Description

Product Overview

The ZJkHAOJ Timing Pulley is engineered for high‑precision power transmission in demanding industrial and scientific applications. Constructed from premium aluminium alloy, the pulley combines lightweight characteristics with exceptional strength, resisting wear and deformation even under continuous operation. Featuring a 20‑tooth profile, the pulley is optimized for 3GT and GT3 synchronous belts, delivering consistent tooth engagement that minimizes backlash and maximizes positional accuracy. The 8mm bore accommodates a range of shaft diameters, while the 15mm belt width compatibility ensures a secure fit for standard timing belts used in 3D printers, CNC routers, and robotic arms. Fixed mounting with two M4 screws provides a rigid connection, eliminating slippage and maintaining alignment over long service intervals. Detailed specifications include a compact footprint of 1.18 x 0.79 x 0.79 inches and a lightweight of 1.76 ounces, making it ideal for applications where space and weight are critical considerations.

Usage

Designed for precision equipment, this timing pulley excels in environments that demand exact motion control. In 3D printing, the pulley ensures smooth filament feed and accurate layer positioning, reducing print artifacts and improving surface finish. CNC machining benefits from the pulley’s low inertia, which translates to rapid acceleration and deceleration without sacrificing stability, allowing for tighter tolerances and finer detail work. The pulley also performs well in automated assembly lines, conveyor systems, and robotic platforms where synchronized movement is essential. Its aluminium construction resists corrosion, making it suitable for humid or chemically active settings. Installation is straightforward: align the 8mm bore with the drive shaft, secure with the two M4 screws, and thread the 15mm belt over the teeth. Once mounted, the system achieves quiet operation and reliable torque transfer, supporting continuous production cycles.

Why Choose Us

Choosing the ZJkHAOJ Timing Pulley means selecting a component backed by rigorous quality assurance processes. Each pulley undergoes precision CNC machining to guarantee exact tooth geometry and uniform pitch, resulting in superior belt engagement and reduced wear. Our aluminium alloy is sourced from certified suppliers, ensuring consistency in mechanical properties and long‑term durability. We provide comprehensive technical support, offering guidance on selection, installation, and maintenance to maximize performance. In addition, our after‑sales service includes a responsive warranty program that addresses any manufacturing defects promptly, giving you confidence in the reliability of your equipment. By integrating this pulley into your system, you benefit from reduced downtime, lower maintenance costs, and enhanced overall efficiency.

Key Features

• High‑strength aluminium alloy provides lightweight durability for long‑term use
• 20‑tooth design ensures precise tooth engagement and minimal backlash
• 8mm bore fits a variety of shafts, offering flexible installation options
• Compatible with 15mm wide timing belts, ideal for 3GT and GT3 applications
• Fixed 2× M4 mounting delivers secure, vibration‑free operation
• Responsive customer support and warranty coverage for peace of mind

FAQ

What belt types are compatible with this pulley?

The pulley is designed for standard 3GT and GT3 synchronous belts with a width of 15mm. It works with both rubber‑coated and polyurethane belts commonly used in 3D printers and CNC machines.

Can this pulley be used with shafts larger than 8mm?

Yes, the 8mm bore can accommodate shafts up to 8mm in diameter. For larger shafts, a compatible sleeve or adapter can be employed to ensure a snug fit.

Is the aluminium alloy resistant to corrosion?

Our aluminium alloy is treated with an anodized coating that provides excellent resistance to oxidation and corrosion, making it suitable for humid or mildly corrosive environments.

How do I install the pulley correctly?

Align the 8mm bore with the drive shaft, insert the two M4 screws through the mounting holes, and tighten them securely. Then place the 15mm timing belt over the pulley teeth, ensuring even tension on both sides.

What warranty does the pulley come with?

The pulley includes a one‑year limited warranty covering manufacturing defects. Our support team is available to assist with any issues that arise during the warranty period.