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When your CNC router, 3D printer, or robotic axis loses positioning accuracy, a worn or under-spec timing belt is often the culprit. Engineers, makers, and machine builders who need a reliable HTD3M timing belt in longer perimeter sizes — without cutting and splicing open-ended stock — will find this closed-loop belt ready to install straight out of the package.
Each belt is a seamless closed loop made from polyurethane (PU) with a built-in steel wire tensile cord. The HTD3M tooth profile features a 3mm pitch with a curvilinear (rounded) tooth form. Belt width is 10mm. Perimeter sizes are available in 3mm increments from 3000mm (≈118.1") to 3357mm (≈132.2"), sold individually (1 pcs) or as a pair (2 pcs) — select your exact size from the variant options above.
Typical use cases include long-axis CNC gantry drives, large-format 3D printer motion systems, laser engraver carriages, conveyor indexing systems, and robotic arm joints — anywhere that repeatable, low-backlash linear or rotary motion is required with an HTD3M closed-loop timing belt.
| Belt Profile | HTD3M (curvilinear tooth) |
|---|---|
| Pitch | 3mm |
| Belt Width | 10mm (≈0.39") |
| Perimeter Range | 3000mm (≈118.1") – 3357mm (≈132.2") |
| Perimeter Increment | 3mm per step |
| Belt Type | Closed loop (seamless) |
| Body Material | Polyurethane (PU) |
| Tensile Cord | Built-in steel wire |
| Tooth Form | Curvilinear (HTD standard) |
| Compatible Pulley | HTD3M, 10mm width or wider |
| Working Load Capacity | See variant options — contact us to confirm for specific applications |
| Operating Temperature | See variant options — contact us to confirm |
| Packing Options | 1 pcs / 2 pcs (select above) |
Measure the center-to-center distance between your pulleys, then calculate: Perimeter ≈ 2 × C + π × (D1 + D2) / 2. This belt is available in 3mm increments from 3000mm (≈118.1") to 3357mm (≈132.2"). When in doubt, size up by one increment — a slightly longer belt is easier to tension than one that is too short.
The built-in steel wire core provides high tensile strength. For a 10mm-wide HTD3M belt, working load capacity is typically in the range of 100–200 N depending on speed and pulley diameter. For heavy-duty or high-speed applications, confirm load requirements with your system designer.
Polyurethane (PU) generally offers better resistance to oils, mild chemicals, and moisture compared to neoprene. However, prolonged exposure to standing water or harsh chemicals is not recommended. For outdoor or washdown environments, confirm suitability with your application requirements.
Yes. This belt follows the HTD3M profile standard — 3mm pitch with a curvilinear (rounded) tooth form. It is compatible with any HTD3M pulley regardless of brand, as long as the pulley width accommodates a 10mm belt.
PU with steel wire typically offers lower elongation under load, better dimensional stability over time, and improved resistance to oils and abrasion. Neoprene belts are generally more flexible at low temperatures. For precision motion applications like CNC or 3D printing, PU steel wire is generally preferred.
This HTD3M belt is commonly used in 3D printers, CNC routers, laser engravers, robotic arms, conveyor systems, and other precision motion applications where accurate, repeatable positioning is required.
The steel wire core significantly reduces elongation compared to fiber-reinforced belts. Under normal operating loads, stretch is minimal. Periodic tension checks are still recommended as part of routine maintenance.
Ships within 48 hours · Estimated delivery Jul 1 - Jul 6
US$40
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