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When your CNC router skips steps or your 3D printer loses positional accuracy, the culprit is often a mismatched or worn pulley. Makers, engineers, and RepRap builders who demand repeatable, backlash-free motion need a GT2 timing belt pulley they can rely on. This 60-tooth, 10mm-belt-width pulley is engineered for exactly that — delivering smooth, synchronized power transfer in demanding motion systems.
Each pulley features a GT2 tooth profile machined to mesh precisely with standard 2mm-pitch GT2 timing belts. The 60-tooth count (60T) provides a larger drive diameter suited for lower-speed, higher-torque applications. Bore options range from 5mm to 14mm (approximately 0.20" to 0.55"), with a stepped hub design that accommodates set screws for secure shaft locking. Belt width compatibility is 10mm (approximately 0.39").
Typical use cases include CNC router X/Y axis drives requiring precise long-travel positioning, FDM 3D printer extruder and gantry systems, and DIY laser cutter motion platforms where consistent belt tension and tooth engagement are critical for cut quality.
60 teeth on a 2mm GT2 pitch deliver a larger pitch diameter for torque-optimized, low-backlash power transmission in CNC and 3D printer drives.
Available in 5mm, 6mm, 6.35mm, 8mm, 12mm, and 14mm bore sizes to fit a wide range of motor and shaft diameters without adapters.
The stepped hub design includes a set screw for positive shaft locking, preventing slippage under load and maintaining positional accuracy over long print or cutting runs.
Machined flanges guide and retain 10mm-wide GT2 belts, reducing belt walk and maintaining consistent tooth engagement across the full pulley face.
Precision-machined tooth geometry minimizes vibration and resonance at higher stepper motor speeds, contributing to cleaner surface finishes on CNC parts and 3D prints.
Dimensionally compatible with widely used open-source CNC and 3D printer motion platforms, making it a straightforward upgrade or replacement without frame modifications.
| Belt Profile | GT2 (2mm pitch) |
|---|---|
| Number of Teeth | 60T |
| Belt Width | 10mm (approx. 0.39") |
| Bore Diameter | 5mm / 6mm / 6.35mm / 8mm / 12mm / 14mm (see variant options) |
| Pitch Diameter | Approx. 38.2mm (1.50") |
| Hub Style | Stepped hub with set screw |
| Material | See variant options |
| Finish | See variant options |
| Flange | Yes (belt-retaining flanges on both sides) |
| Weight | See variant options |
| Application | CNC router, 3D printer, RepRap, laser cutter motion systems |
Most NEMA 17 stepper motors used in 3D printers have a 5mm shaft, so the 5mm bore is the most common choice. NEMA 23 motors typically use an 8mm or 6.35mm (1/4") shaft. Check your motor's datasheet for the exact shaft diameter before ordering. If your shaft is metric, choose the matching mm bore; if imperial, the 6.35mm option fits a standard 1/4" shaft.
Yes. This pulley is machined to the GT2 2mm-pitch tooth profile and is compatible with standard GT2 open-loop and closed-loop timing belts with a 10mm width. It will not correctly mesh with HTD, T2.5, or other belt profiles even if the belt width matches.
The stepped hub includes one or more set screws (typically M3) that tighten radially against the shaft. For best results, align the set screw with a flat on the motor shaft if one is present, and apply a small amount of thread-locking compound to prevent loosening from vibration during operation.
A 60T pulley has a larger pitch diameter (~38.2mm) compared to a 20T (~12.7mm), which means each motor revolution moves the belt a greater linear distance. This results in faster axis travel speeds but lower positional resolution per step. A 60T pulley is well-suited for large-format CNC routers or laser cutters where travel speed matters more than ultra-fine resolution. For high-resolution 3D printing, a smaller tooth count is typically preferred.
Corrosion resistance depends on the material and finish of the specific variant. Anodized aluminum variants offer good resistance to light moisture and oxidation. For consistently humid or outdoor environments, consider applying a light machine oil or protective coating periodically. Avoid prolonged exposure to standing water or corrosive chemicals regardless of material.
This pulley is dimensionally compatible with standard GT2 60T pulleys used in open-source CNC and 3D printer designs. Before ordering, verify your machine's required bore diameter, belt width (10mm), and tooth count (60T). If your machine currently uses a different tooth count or belt width, this pulley will not be a direct drop-in replacement.
A properly tensioned GT2 belt should produce a clear, mid-pitched tone when plucked — similar to a low guitar string. If the belt is too loose, you will notice layer shifting in 3D prints or positioning errors in CNC cuts. If too tight, you may experience increased motor load, bearing wear, and belt fatigue. Most motion system guides recommend tensioning until the belt deflects approximately 1–2mm under light finger pressure at the midpoint of the longest unsupported span.
