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Slipping belts, lost steps, and timing drift can ruin a print, a CNC pass, or a robotics build. If you are a maker, hobby machinist, 3D printer builder, or robotics tinkerer who needs repeatable motion, this T5 timing belt pulley gives your drive train the tooth engagement it needs to stay in sync.
Each pulley is machined from aluminum alloy for a light, dimensionally stable body. It uses the T5 metric profile with a 5mm tooth pitch and a 16mm face width to suit T5 timing belts. Tooth counts range from 10 to 60 teeth, and bore sizes span 5mm to 24mm (roughly 0.20 in to 0.94 in), so you can match motor shafts and driven shafts across a wide range of builds.
Common uses include 3D printer X/Y/Z axes, small CNC and laser gantries, conveyor and feed mechanisms, camera sliders, and robotics joints. Pair two matched T5 aluminum timing pulleys with a T5 belt to build a low-backlash synchronous belt drive for precise positioning.
| Belt Profile | T5 (metric trapezoidal) |
|---|---|
| Tooth Pitch | 5mm |
| Face / Belt Width | 16mm (approx. 0.63 in) |
| Number of Teeth | 10 to 60 teeth (see variant options) |
| Bore Diameter | 5mm to 24mm / approx. 0.20 in to 0.94 in (see variant options) |
| Material | Aluminum alloy |
| Hub Style | Without step (straight bore) |
| Quantity | 1 piece per order |
| Weight | See variant options |
| Compatible Belt | T5 timing belt, 16mm width |
Pick tooth count based on your target gear ratio and pitch diameter. For example, pairing a 20-tooth driver with a 40-tooth driven pulley gives a 2:1 reduction. More teeth means a larger pitch diameter and higher belt engagement, which is useful for smoother motion at the cost of size.
Match the bore to your shaft diameter. Common stepper motors use 5mm, 6.35mm, or 8mm shafts, while driven shafts may be larger. Measure your shaft and select the matching bore from the variant options. If you are between sizes, contact us to confirm.
Aluminum alloy offers a favorable strength-to-weight ratio for light and medium-duty synchronous drives such as 3D printers, small CNC axes, and robotics. For very high torque or abrasive industrial loads, a steel pulley may be more appropriate.
Aluminum forms a natural oxide layer that provides moderate corrosion resistance in typical indoor and workshop environments. For humid or outdoor use, keep the assembly clean and consider a protective coating.
No. This is a T5 profile pulley with a 5mm pitch and is designed for T5 timing belts only. GT2 (2mm pitch) and HTD belts use different tooth geometry and are not interchangeable.
Each order includes 1 pulley only. The T5 belt and any set screws or collars are sold separately. Order two matched pulleys and a T5 belt to complete a synchronous drive.
Yes. Using different tooth counts on the driver and driven shaft is exactly how you create a gear ratio. Just make sure both pulleys share the same T5 profile and 16mm width so they run on the same belt.
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