HTD 5M Timing Belt — 5mm Pitch 10mm Wide Closed Loop Synchronous Belt

Measure the center-to-center distance between your two pulleys, then use the formula: Belt Length ≈ 2 × C + π × (D1 + D2) / 2. Each variant lists the circumference in mm and the tooth count. For example, a 500mm belt is approximately 19.7". When in doubt, size up slightly — a belt that's a few mm long is easier to tension than one that's too short. If replacing a worn belt, match the tooth count exactly rather than measuring the stretched original.

HTD 5M belts are generally rated for moderate-to-high torque applications. A 10mm wide HTD 5M belt typically handles up to around 200–400 N of allowable tension depending on speed, pulley diameter, and wrap angle. For precise load ratings specific to your application, contact us to confirm — or consult your drive system's engineering documentation.

HTD 5M rubber timing belts are generally not recommended for prolonged outdoor UV exposure or continuous water immersion. They perform well in indoor, semi-enclosed, or lightly humid environments — such as enclosed 3D printers, indoor CNC machines, and climate-controlled automation systems. For harsh outdoor or chemical-exposure applications, a polyurethane (PU) belt variant may be more appropriate. Contact us to confirm suitability for your environment.

This belt is designed exclusively for HTD 5M pulleys with a 5mm pitch and 10mm belt width groove. It is not interchangeable with GT2 (2mm pitch), T5 (5mm trapezoidal), AT5, or other belt standards — even if the pitch number looks similar. Always verify your pulley's pitch designation and groove profile before ordering. HTD and T5 both use 5mm pitch but have different tooth shapes and are not cross-compatible.

For fixed-center-distance systems (most 3D printers and CNC gantries), calculate or measure precisely — there's typically little adjustment range. For systems with an adjustable idler or tensioner, you generally have ±5–10% flexibility. In practice, most builders select the belt length that matches their calculated circumference, then use the tensioner to fine-tune. If you're between two sizes, the longer option is usually safer.

HTD 5M uses a curvilinear (rounded) tooth profile with 5mm pitch, designed for higher torque and reduced backlash compared to trapezoidal profiles. GT2 uses a 2mm pitch and is common in lighter-duty desktop 3D printers (like Ender series). T5 uses a 5mm trapezoidal tooth — same pitch as HTD 5M but a different tooth shape, so they are not interchangeable. HTD 5M is typically chosen for larger machines, heavier loads, and applications where slip resistance and torque capacity matter more than ultra-fine positioning resolution.

Yes — HTD 5M 10mm belts are commonly used in large-format 3D printers, CNC routers, laser cutters, and robotic actuators. Verify that your machine uses HTD 5M pulleys (5mm pitch, matching curvilinear groove profile) and that the belt circumference matches your axis travel requirements. If your machine originally shipped with a GT2 or T5 belt, this HTD 5M belt is not a direct replacement without also changing the pulleys.