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When your CNC router, large-format 3D printer, or robotic actuator demands consistent, slip-free motion across spans exceeding 2 meters, a standard open-end belt simply won't cut it. Engineers and makers who need a ready-to-run closed-loop HTD 3M timing belt — without splicing, without guesswork — reach for this series.
Each belt is a single continuous loop in the HTD 3M tooth profile (3mm pitch, rounded curvilinear tooth form), constructed from polyurethane (PU) with an embedded steel wire tensile cord. Belt width is 10mm (≈3/8"). Available lengths range from 2022mm (≈79.6") to 2772mm (≈109.1") in 3mm increments, giving you precise fitment across a wide range of drive configurations.
Typical applications include large-format CoreXY and Cartesian 3D printers requiring HTD 3M closed-loop drive belts, CNC router axis drives, laser cutter gantry systems, and custom robotic linear actuators where low-stretch synchronous motion is critical.
| Belt Type | HTD 3M Closed Loop (Synchronous) |
|---|---|
| Tooth Profile | HTD 3M (3mm pitch, rounded curvilinear) |
| Belt Width | 10mm (≈3/8") |
| Available Lengths | 2022mm (≈79.6") – 2772mm (≈109.1"), in 3mm increments |
| Body Material | Polyurethane (PU) |
| Tensile Cord | Steel wire |
| Loop Type | Seamless closed loop (no joint) |
| Compatible Pulleys | HTD 3M pulleys only |
| Typical Applications | 3D printers, CNC routers, laser cutters, robotic actuators |
| Operating Temperature | See variant options |
| Color | See variant options |
| Quantity per Order | 1 belt per unit |
Measure the center-to-center distance between your two pulleys, then use the standard belt length formula: L = 2C + π(D1 + D2)/2, where C is center distance and D1/D2 are the pitch diameters of your pulleys. Round up to the nearest available 3mm increment in our selection. For reference: 2022mm ≈ 79.6", 2400mm ≈ 94.5", 2772mm ≈ 109.1". If your calculated length falls between sizes, generally select the next larger size and adjust your tensioner.
The steel wire tensile cord typically provides load capacity suitable for light-to-medium duty synchronous drive applications such as 3D printer axes and small CNC gantries. Exact tensile ratings depend on the specific length and pulley wrap angle. For high-load or continuous-duty industrial applications, contact us to confirm suitability before ordering.
Polyurethane (PU) belts are generally more resistant to oils, mild solvents, and incidental moisture than standard rubber belts. However, prolonged UV exposure or immersion in water is not recommended. For outdoor installations or wash-down environments, contact us to confirm the belt's suitability for your specific conditions.
This belt is designed exclusively for HTD 3M pulleys (3mm pitch, rounded tooth profile). It is not compatible with GT2, GT3, T3, MXL, or XL profile pulleys, even though some share a 3mm pitch. Always verify the tooth profile designation on your pulley before ordering. Mismatched profiles will cause premature wear and skipping.
Divide the millimeter value by 25.4 to get inches. Quick reference examples from our range:
Yes. HTD 3M closed-loop timing belts are commonly used in large-format CoreXY and Cartesian 3D printers, CNC router axis drives, laser cutter gantry systems, and custom robotic linear actuators. The steel wire core minimizes stretch for accurate, repeatable positioning. Verify that your machine's pulleys use the HTD 3M tooth profile before purchasing.
Both HTD 3M and GT2 belts have a 3mm pitch, but their tooth profiles differ and they are not interchangeable. HTD 3M uses a rounded curvilinear tooth optimized for higher torque transmission. GT2 uses a modified curvilinear profile designed for low backlash in precision positioning applications. Always match your belt and pulley to the same profile designation.
Ships within 48 hours · Estimated delivery Jun 23 - Jun 28
US$40
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