Measure the center-to-center distance between your two pulleys, then use the standard belt length formula: Loop Circumference ≈ 2 × C + π × (D1 + D2) / 2, where C is center distance and D1/D2 are pulley pitch diameters. For example, a 1000mm loop (≈39.4") is typically used with mid-range pulley spacings around 400–450mm. When in doubt, size up — a slightly longer belt can be tensioned; a short belt cannot be installed.

This belt uses the HTD arc tooth profile with a 5mm pitch. The curved tooth flanks distribute load more evenly across the tooth root compared to trapezoidal profiles, which generally results in lower stress concentrations and smoother engagement — particularly beneficial in servo-driven and high-cycle applications.

Rated power capacity depends on speed, pulley diameter, and number of teeth in mesh. For a 15mm wide HTD 5M belt, typical tangential force ratings are generally in the range of 200–600 N depending on operating conditions. Consult your drive design software or contact us to confirm suitability for your specific load.

This belt is made from neoprene-based rubber with fiberglass cord reinforcement, which provides moderate resistance to moisture, oils, and mild temperature variation. It is generally suitable for light outdoor or damp indoor use. For continuous immersion or extreme UV/chemical exposure, a polyurethane (PU) belt may be more appropriate.

This belt is compatible with any HTD 5M standard pulley — the tooth pitch is 5.000mm and the arc tooth profile follows the HTD standard. Common pulley tooth counts used with 15mm wide belts include 15T, 20T, 30T, 36T, and 60T. Ensure your pulley is rated for 15mm belt width (or wider with flanges).

HTD 5M is optimized for moderate-to-high torque applications where smooth power transmission matters. GT2/GT3 belts offer slightly higher positional accuracy and are popular in 3D printers and CNC routers. T5 is a trapezoidal profile suited for lighter loads. If your application requires precise linear positioning at lower torque, GT2 may be preferable; for general power transmission and conveyor drives, HTD 5M is typically the right choice.

The Loop Circumference listed in the variant options refers to the pitch circumference (measured at the pitch line, which runs through the cord layer). This is the standard industry measurement for timing belts and matches the designation used on HTD pulleys. The outer circumference will be slightly larger.