The GT2 20-Teeth Idler Pulley is engineered for high-precision linear positioning applications using 10mm wide timing belts. Equipped with high-quality dual internal shielded ball bearings, this pulley rotates smoothly on any 5mm shaft or M5 bolt, drastically reducing friction and belt wear. The integrated teeth match the GT2 belt profile exactly, preventing belt slippage, reducing backlash, and eliminating the ghosting artifacts often caused by smooth idlers on the toothed side of a belt.
Dual Ball Bearings: Built-in dual-shielded bearings provide low-friction rotation, stable alignment, and silent operation under high belt tension.
True GT2 Profile: The 20-teeth profile correctly engages with the teeth of GT2 rubber timing belts, minimizing speed variations and micro-stuttering.
Flanged Design: Dual side flanges keep the 10mm timing belt tracking perfectly centered, preventing it from walking off the track during rapid axis reversals.
Durable Construction: Machined from high-grade aluminum alloy for low weight, high structural rigidity, and excellent wear resistance.
| Feature | Specification |
| Tooth Profile | GT2 / 2mm Pitch |
| Teeth Count | 20 Teeth (20T) |
| Bore Diameter (Inner) | 5mm (Fits M5 screws or 5mm linear shafts) |
| Compatible Belt Width | 10mm (Actual internal groove width pprox11mm) |
| Material | Premium Aluminum Alloy |
| Bearing Type | Dual Shielded Miniature Ball Bearings |
| Color | Silver / Metallic |
3D Printers: Heavy-duty CoreXY, Voron, and custom large-format printer builds utilizing 10mm belts for reduced belt stretch.
CNC Routers & Laser Engravers: Maintaining precise tracking across long X and Y axes.
Camera Sliders: Providing low-noise, fluid motion for automated photographic gear.
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