GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt
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GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing BeltGT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt

GT2 Idler Timing Pulley Bearing 16T-60T 3-15mm Bore for 6/11mm Width Timing Belt

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$4.47 USD
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In stock (500 units), ready to be shipped

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Description

GT2 Idler Timing Pulley — Precision Bearing Idler for 2GT Belt Drive Systems

When belt tension drifts or your motion system loses repeatability, the culprit is often a poorly fitted idler. Engineers and makers building 3D printers, CNC routers, laser cutters, and robotic actuators need an idler pulley that holds alignment under continuous load without adding backlash. This GT2 idler timing pulley with integrated bearing is designed for exactly that application.

Each pulley is machined from stainless steel and available in tooth counts from 16T to 60T, with bore diameters ranging from 3 mm to 15 mm (approximately 0.12 in to 0.59 in). Two idler types are offered — smooth (flanged, no teeth) for redirecting belt path, and toothed for maintaining positive engagement. Belt width compatibility covers 6 mm and 10 mm (approximately 0.24 in and 0.39 in) 2GT timing belts.

Typical use cases include GT2 belt tensioner assemblies on CoreXY 3D printers, X/Y-axis idler routing on desktop CNC mills, and compact servo-driven linear actuators where a low-profile idler bearing reduces system footprint. The integrated bearing eliminates the need for a separate bearing press-fit, simplifying assembly for small-batch manufacturing and DIY builds alike.

⚙️ Compatibility: Designed for 2GT / GT2 timing belts. Fits 6 mm and 10 mm belt widths. Bore sizes 3–15 mm suit M3–M15 shafts or shoulder bolts. Verify your belt pitch (2 mm) and bore requirement before ordering.

✅ Key Features of These GT2 Idler Timing Pulleys

🔩 Stainless Steel Construction

Machined from stainless steel for corrosion resistance and dimensional stability in humid or lightly oiled environments.

🎯 Integrated Bearing

Pre-installed bearing allows the pulley to spin freely on a fixed shaft — no separate bearing sourcing or press-fitting required.

🔄 Smooth & Toothed Variants

Choose smooth (flanged) for belt redirection without engagement, or toothed for positive 2GT tooth meshing and tension control.

📐 Wide Tooth Count Range: 16T–60T

Covers a broad range of drive ratios and belt wrap angles, from compact 16-tooth idlers to large 60-tooth routing pulleys.

🕳️ Multiple Bore Options: 3–15 mm

Available in 3 mm, 4 mm, 5 mm, and 6 mm bore sizes (see variant options) to match standard shoulder bolts and shaft diameters used in motion systems.

🖨️ Drop-In Fit for 3D Printers & CNC

Dimensionally compatible with common CoreXY, Cartesian, and H-bot printer frames, as well as open-source CNC gantry designs using GT2 belt drives.

📐 Technical Specifications — GT2 Idler Timing Pulley

Belt Profile 2GT (GT2), 2 mm pitch
Tooth Count 16T, 20T (see variant options for full range up to 60T)
Idler Type Smooth (flanged) / Toothed
Belt Width Compatibility 6 mm / 10 mm
Bore Diameter 3 mm, 4 mm, 5 mm, 6 mm (see variant options)
Material Stainless Steel
Bearing Type Integrated rolling bearing
Flange Flanged on smooth type; toothed type flanged per variant
Weight See variant options
Surface Finish Natural stainless (uncoated)

❓ Frequently Asked Questions

How do I choose between the smooth and toothed idler?

Use a smooth (flanged) idler when you need to redirect the belt path without engaging the teeth — for example, on the non-driven side of a CoreXY gantry. Use a toothed idler when the belt must wrap around the idler with tooth engagement, which helps maintain tension and prevents belt skipping on longer runs.

What bore size should I select for my printer or CNC build?

Match the bore to your shoulder bolt or shaft diameter. Most CoreXY printers (e.g., Voron, RatRig) use M3 or M5 shoulder bolts, so a 3 mm or 5 mm bore is typical. Check your frame's BOM or hardware spec sheet to confirm before ordering.

Is this pulley compatible with standard GT2 belts?

Yes. These pulleys are designed for the 2GT / GT2 belt profile with a 2 mm pitch. They are compatible with both open-loop and closed-loop GT2 timing belts in 6 mm and 10 mm widths. Ensure your belt width matches the variant you select.

How strong is the integrated bearing under continuous load?

The integrated bearing is rated for the radial loads typical of 3D printer and light CNC applications. For high-speed or heavy-load industrial applications, verify the bearing's dynamic load rating against your system requirements. Contact us to confirm specifications for demanding use cases.

Will stainless steel resist corrosion in my application?

Stainless steel offers good resistance to moisture, light oils, and mild chemical exposure — suitable for most workshop, laboratory, and indoor automation environments. For aggressive chemical or saltwater exposure, additional sealing of the bearing may be advisable.

Can I use this idler pulley to tension a GT2 belt on a laser cutter?

Yes. GT2 idler pulleys are widely used in laser cutter X/Y gantry systems. Select the smooth flanged variant for belt redirection at corners, and ensure the bore matches your tensioner bolt diameter. The 6 mm belt width variants are most common in compact laser cutter frames.

What is the difference between 16T and 20T idler pulleys?

The tooth count affects the pulley's outer diameter and the belt wrap angle. A 16T idler has a smaller diameter (~10.2 mm pitch diameter) and is suited for tight spaces. A 20T idler (~12.7 mm pitch diameter) provides a larger wrap angle, which can reduce belt stress at the contact point. Choose based on your available clearance and belt routing geometry.

🛒 Select your Model-Teeth, Idler Type, and Belt Width & Inner Hole above, then add to cart.

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