Description
Toothless GT2 Idler Pulley 5mm Bore for 3D Printer (Bore 5mm, Toothless) in pakisan
The Toothless GT2 Idler Pulley 5mm Bore is a mechanical accessory used to guide and support timing belts in belt-driven motion systems. Unlike a toothed drive pulley, this idler pulley has a smooth running surface and does not directly drive the belt through matching teeth.
It is commonly used in 3D printer assemblies to guide the GT2 timing belt around corners, maintain the belt path and support proper belt tension. The 5mm bore allows installation on compatible 5mm shafts or mounting hardware.
This component is suitable for RepRap 3D printers, DIY CNC machines, laser engravers and other belt-driven mechanical projects.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Toothless GT2 Idler Pulley |
| Product Type | Smooth Idler Pulley |
| Belt Compatibility | GT2 Timing Belt |
| Bore Diameter | 5mm |
| Pulley Surface | Smooth / Toothless |
| Belt Pitch | 2mm GT2 system |
| Function | Belt guidance and support |
| Shaft Compatibility | Compatible 5mm shaft or mounting hardware |
| Application | 3D printers and CNC machines |
| Material | Depends on supplied variant |
Note: Confirm the pulley width, outer diameter, bearing arrangement and mounting method with the actual product before ordering. These dimensions can vary between versions.
Key Features
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Toothless design: Smooth running surface for guiding compatible timing belts.
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5mm bore: Designed for compatible 5mm mounting shafts or hardware.
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GT2 belt compatibility: Suitable for belt systems using the GT2 2mm pitch profile, subject to pulley width and dimensions.
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Belt guidance: Helps maintain the correct belt route through the motion system.
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Reduced belt misalignment: Supports a more consistent belt path when correctly installed.
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Versatile use: Suitable for 3D printers, CNC machines and DIY automation projects.
Applications
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RepRap 3D printer belt systems
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X-axis and Y-axis belt guidance
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DIY CNC machines
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Laser engraving machines
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Stepper motor belt-driven systems
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Robotics and automation projects
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Custom linear motion assemblies
Installation / Setup
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Check that the pulley has a 5mm bore suitable for your mounting shaft.
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Confirm that its width matches your GT2 timing belt.
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Install the pulley using compatible mounting hardware.
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Position it along the intended belt path.
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Ensure the pulley rotates freely without excessive friction.
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Align the pulley with the drive pulley and other belt-guiding components.
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Adjust belt tension according to your machine’s requirements.
Precautions
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Confirm the pulley dimensions before installation.
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Do not assume every 5mm-bore pulley has the same width or outer diameter.
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Ensure the pulley is aligned with the timing belt.
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Avoid excessive belt tension.
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Check that the pulley rotates smoothly.
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Inspect the mounting shaft and bearing arrangement for wear.
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Replace damaged or rough-running pulleys to prevent belt wear.
YouTube Tutorial
GT2 Toothless Idler Pulley Installation Tutorials
Buy from Electroway Pakistan
Explore GT2 idler pulleys, timing belts, toothed pulleys, stepper motors, CNC accessories and 3D printer components at Electroway.org.
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Product Summary
The Toothless GT2 Idler Pulley with 5mm bore is a belt-guiding component for compatible 3D printer and CNC motion systems. Its smooth running surface helps guide GT2 timing belts and maintain proper belt alignment in mechanical assemblies.

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