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When a slipping or mismatched pulley throws off your motion-control build, every axis suffers. Engineers, makers, and 3D printer builders who need a dependable 5M-pitch synchronous wheel with a wide tooth-count range will find this pulley a direct fit for demanding drive systems.
Each pulley is machined from aluminum alloy with a natural or anodized finish. The 5M tooth profile (5 mm pitch) pairs with 15 mm wide 5M timing belts. Tooth counts span 14 T through 29 T, and bore options run from 5 mm (0.20 in) up to 20 mm (0.79 in), covering the most common motor shaft sizes used in desktop CNC routers, FDM 3D printers, and light automation rigs.
Typical use cases include X/Y axis drives on CoreXY 3D printers, lead-screw-free CNC gantry systems, conveyor indexing fixtures, and robotics joint actuators where a 5M belt synchronous wheel gear provides the torque capacity and positional accuracy the application demands.
14 T to 29 T in single-tooth increments — dial in the exact gear ratio your drive system needs without custom machining.
Bore options from 5 mm to 20 mm (including 6.35 mm / ¼ in and 12.7 mm / ½ in imperial sizes) fit stepper motors, servo shafts, and lead screws out of the box.
Lightweight yet rigid aluminum body keeps rotational inertia low while maintaining dimensional stability under continuous belt tension.
Matched to 5M belts at 15 mm width for balanced load distribution across the tooth face — reduces edge wear and belt tracking issues.
Integrated flanges on both sides of the tooth profile keep the belt centered during high-speed or reversing motion cycles.
Standard set-screw clamping hub allows tool-free shaft swaps during prototyping and secure locking once the final bore is confirmed.
| Belt Pitch | 5M (5 mm) |
|---|---|
| Belt Width | 15 mm (0.59 in) |
| Number of Teeth | 14 T – 29 T (see variant options) |
| Bore Diameter | 5 / 6 / 6.35 / 8 / 10 / 12 / 12.7 / 14 / 15 / 16 / 17 / 18 / 19 / 20 mm (see variant options) |
| Material | Aluminum alloy |
| Flange | Double-flanged |
| Hub Fastening | Set screw |
| Outer Diameter | See variant options |
| Quantity per Order | 1 piece |
The tooth count determines your drive ratio. Divide the driven pulley teeth by the driving pulley teeth to get the ratio. For a 1:2 reduction with a 28 T driven pulley, pair it with a 14 T driving pulley. Higher tooth counts increase the pitch diameter and reduce belt wrap angle on small pulleys, which improves belt life.
Standard NEMA 17 stepper motors have a 5 mm output shaft. Select the 5 mm bore variant. If your motor has a D-cut shaft, the set screw will engage the flat to prevent rotation.
Yes. The 5M tooth profile is an industry-standard pitch. Any 5M timing belt with 15 mm width from any manufacturer will mesh correctly with these pulleys.
Aluminum alloy provides a good strength-to-weight ratio for typical desktop CNC and 3D printer loads. For heavy industrial drives with sustained high tension, consider verifying the belt tension against the pulley's bore wall thickness for your specific tooth count variant.
Aluminum naturally forms a thin oxide layer that resists light moisture exposure. For consistently wet or chemically aggressive environments, an anodized finish or periodic light lubrication of the bore is recommended to maintain dimensional accuracy over time.
Yes. The 5M pitch and 15 mm belt width are well-suited for CoreXY and H-bot gantry designs that use 5M belts. Select the tooth count that matches your existing idler or motor pulley to maintain your steps-per-mm calibration.
6 mm is a metric bore for metric shafts. 6.35 mm (¼ inch) is the imperial equivalent, common on North American servo motors and some stepper motors. Measure your shaft with calipers before ordering to avoid a loose fit.
