Measure the center-to-center distance between your pulleys, then use the formula: Perimeter ≈ 2 × C + π × (D1 + D2) / 2. For example, a 3600mm (≈141.7") belt typically suits a drive span of roughly 1700–1750mm with standard HTD 3M pulleys. Always verify against your machine's actual belt path before ordering. When in doubt, measure your existing belt directly.

HTD 3M polyurethane belts with steel wire cores are generally rated for light-to-medium power transmission. The steel wire tensile members provide higher tensile strength than fiberglass-cord alternatives, reducing belt stretch under load. Exact load ratings depend on pulley diameter, operating speed, and temperature — consult your machine's engineering specifications or contact us to confirm suitability for your application.

Polyurethane (PU) generally offers better resistance to oils, mild chemicals, and moisture compared to neoprene rubber belts. However, prolonged UV exposure or immersion in water is typically not recommended for PU timing belts. For outdoor applications, consider shielding the belt from direct sunlight and standing water to maximize service life.

This belt uses the HTD (High Torque Drive) 3M tooth profile — 3mm pitch, rounded tooth form. It is compatible with any HTD 3M pulley of matching or wider groove width (10mm+). It is NOT interchangeable with MXL, GT2, GT3, T5, or trapezoidal-profile pulleys. Always verify your pulley is labeled HTD 3M before ordering.

Steel wire tensile cords typically offer higher tensile strength and lower elongation under sustained load compared to fiberglass cords. This makes them well-suited for applications requiring precise, repeatable positioning — such as CNC routers, laser cutters, and linear actuators — where belt stretch would accumulate into positioning errors over time.

Yes. HTD 3M closed-loop PU timing belts are commonly used in CNC routers, laser engravers, large-format 3D printers, and other motion-control systems that use HTD 3M pulleys. Confirm your machine's required perimeter length and that your pulleys use the HTD 3M tooth profile before purchasing.

The 10mm width refers to the belt's face width — the dimension measured across the belt from edge to edge. Your pulley groove width should be equal to or slightly wider than 10mm to ensure proper belt tracking. Using a pulley with a narrower groove will cause the belt to ride up on the flanges and wear prematurely.