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Precision GT2 6mm Idler Timing Pulley in plain aluminum finish for smooth belt guidance in 3D printers, CNC machines, robotics, laser engravers, and custom motion systems.
$2.50
The GT2 6mm Idler Timing Pulley is a compact belt motion component used in 3D printers, CNC machines, laser engravers, robotics, automation projects, belt tensioning systems, and custom mechanical assemblies. Designed for 6mm wide GT2 timing belts, this pulley helps guide the belt smoothly around idler points, tensioners, carriage assemblies, and motion paths.
This plain aluminum version features a 20 tooth GT2 profile, 5mm bore, and clean aluminum finish, making it a practical choice for common 3D printer and DIY machine builds. It can be used with compatible 5mm shafts, bolts, shoulder screws, axle hardware, or custom brackets depending on your design. Whether you are repairing a printer, building a CoreXY motion system, upgrading a belt path, or stocking spare parts, the GT2 6mm Idler Timing Pulley is a useful motion component to keep on hand.
GT2 timing belts are widely used in 3D printers and light-duty motion systems because they provide accurate belt-driven movement in a compact format. This pulley is intended for 6mm wide GT2 belts, helping support belt travel, alignment, and tensioning in compatible assemblies. Always confirm belt width, bore size, tooth profile, and pulley style before installation.
The 20 tooth format is common in 3D printer motion systems, small CNC projects, robotics mechanisms, and belt-driven DIY machines. It can be used in idler assemblies, belt routing points, tensioner brackets, carriage systems, gantries, and custom mechanical layouts. A properly installed pulley helps reduce belt rubbing, uneven wear, tracking issues, and noisy motion.
The 5mm bore makes this pulley suitable for many small machine assemblies using compatible 5mm shafts, bolts, shoulder screws, or axle-style hardware. The plain aluminum finish provides a clean, simple appearance that works well with aluminum extrusion frames, 3D printer builds, CNC brackets, robotics projects, and custom fabricated assemblies.
The GT2 6mm Idler Timing Pulley can be used in 3D printers, CoreXY builds, Cartesian printer systems, CNC machines, laser engravers, robotics platforms, camera sliders, plotters, belt tensioners, and prototype motion assemblies. It is especially helpful when building or repairing compact belt-driven systems that rely on clean, repeatable motion.
For related parts, browse the 3D Printer Parts category or the Fasteners category. This pulley can be paired with GT2 timing belts, metric socket head screws, spacers, bearings, brackets, linear rails, smooth rods, and other motion hardware from dnb3D.
Timing belt pulley systems are commonly used where synchronized belt motion, repeatability, and compact mechanical drive layouts are needed. For general engineering context on synchronous timing belt systems, see this synchronous belt drive reference.
Every order is hand-inspected and precision-shipped from dnb3D in Marathon, Ontario. Whether you are repairing a 3D printer, building a belt tensioner, assembling a CNC axis, or designing a custom motion system, this GT2 6mm Idler Timing Pulley provides a reliable belt-guiding solution for compact machine builds.
The GT2 6mm Idler Timing Pulley is designed for compatible 6mm wide GT2 timing belt motion systems used in 3D printers, CNC projects, robotics, and custom machine assemblies.
| Product Type | GT2 idler timing pulley / belt guide pulley |
|---|---|
| Belt Type | GT2 timing belt |
| Compatible Belt Width | 6mm |
| Tooth Count | 20 tooth / 20T |
| Bore Size | 5mm |
| Finish / Colour | Plain aluminum / silver |
| Common Use | Belt idlers, belt tensioners, belt guides, 3D printer motion systems, CNC motion, robotics, laser engravers, and DIY machines |
| Compatible Hardware | 5mm shafts, compatible bolts, shoulder screws, axle hardware, spacers, brackets, and custom pulley mounts |
| Common Applications | 3D printers, CoreXY printers, Cartesian printers, CNC machines, laser engravers, robotics, camera sliders, plotters, and belt-driven motion assemblies |
| Installation Style | Mounted on compatible 5mm shaft or axle hardware as part of a GT2 belt path |
| Assembly Warning | Confirm belt width, bore size, alignment, and clearance before installation. Misalignment can cause belt wear, noise, or poor motion quality. |
| Fulfillment | Hand-inspected and precision-shipped from dnb3D in Marathon, Ontario, Canada |
Before installing the GT2 6mm Idler Timing Pulley, confirm that your belt is a compatible 6mm wide GT2 timing belt and that your shaft, bolt, or axle hardware matches the 5mm bore. Mismatched parts can cause wobble, binding, poor belt tracking, or premature wear.
Proper alignment is important for smooth motion. The pulley should sit square to the belt path so the belt tracks evenly across the pulley. Misalignment can cause belt edge wear, noise, skipped motion, uneven tension, or rubbing against nearby parts.
When mounting the pulley, make sure spacers, washers, bolts, brackets, and printed parts do not rub against the rotating pulley or belt. The pulley should spin freely after installation with no side binding or interference.
Use reasonable belt tension for your machine design. A belt that is too loose can skip or produce inaccurate motion, while a belt that is too tight can increase bearing load, create noise, wear the belt, or strain motor shafts and brackets.
Keep the pulley teeth and belt path free from dust, chips, filament debris, grease buildup, and abrasive particles. Contamination can reduce belt life and create rough or noisy motion. Inspect the pulley during regular printer or machine maintenance.
The 5mm bore should fit compatible 5mm shafts or axle hardware without excessive force. Forcing the pulley onto oversized, damaged, or dirty hardware can damage the pulley, bearing, or bore. Inspect shafts and bolts for burrs before assembly.
To keep the plain aluminum finish clean, avoid abrasive tools, harsh cleaners, and unnecessary scratching during installation. Wipe with a soft cloth before final assembly if the pulley will be visible on the finished machine.
Every order is hand-inspected before shipping. dnb3D precision-ships pulleys, fasteners, motion parts, and small machine hardware across Canada from our Ontario facility, helping makers, builders, and machine owners receive clean, usable parts ready for careful installation.
At dnb3D, we don’t just ship boxes—we manufacture solutions. Operating our Industry 4.0 micro-factory in Marathon, Ontario, means your order is handled by the same people who design and test these components.
Ready to Ship (3D Printer Parts & Hardware): Finished, inspected, and on the shelf. Dispatched within 1 to 2 business days.
In-House Manufacturing (Laser, Plasma, 3D Prints): These items are manufactured “fresh” to order. Please allow 3 to 5 business days for precision cutting and finishing.
Custom Projects: Bespoke designs require a consultation and a locked-in timeline before production begins.
We ship nationwide across Canada and the USA. Centrally located on the North Shore of Lake Superior, we are uniquely positioned to get your products moving quickly to either coast.
We stand behind every weld, cut, and print. If a product doesn’t meet your expectations, contact the Hub within 30 days. If we wouldn’t put it in our own shop, we won’t let it sit in yours.
Standard Items: Contact us within 30 days for return authorization. Items must be in original, unused condition.
Custom/Personalized Orders: Digitally fabricated to your exact specs (names, custom dimensions, or unique finishes) are final sale once production begins.
Shipping Costs: Return shipping is the responsibility of the customer unless the item arrived damaged or defective.
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