The perimeter listed is the outer circumference of the closed loop. Measure the center-to-center distance between your two pulleys, then calculate: Perimeter ≈ 2 × C-to-C + (π × pulley pitch diameter). For example, a 500mm perimeter belt is approximately 19.7". Always verify against your machine's spec sheet or existing belt markings before ordering.

S5M is a curvilinear-tooth synchronous belt profile with a 5mm pitch. It is generally interchangeable with HTD 5M belts in most applications, as both share the same pitch and tooth geometry. However, always confirm pulley compatibility before substituting, as minor tooth-profile differences can affect engagement under high load.

Load capacity depends on belt length, pulley diameter, and operating speed. For a 30mm-wide S5M belt, typical rated tensile strength is generally in the range of 500–900 N depending on the specific perimeter and reinforcement cord. For precision power-transmission applications, consult your drive system's torque requirements and apply an appropriate service factor.

The neoprene rubber body provides good resistance to oil, moderate moisture, and temperatures typically from -20°C to +80°C (-4°F to 176°F). It is not rated for continuous submersion. For harsh outdoor or chemical-exposure environments, verify suitability with your application engineer before installation.

Yes. This belt follows the S5M standard profile (5mm pitch, curvilinear tooth) and is designed to mesh with any standard S5M or HTD 5M pulley. The 30mm belt width requires pulleys with a usable flange width of at least 30mm. Always confirm pulley tooth count and pitch diameter match your drive ratio requirements.

For CNC routers and 3D printers, the belt perimeter is determined by axis travel distance and pulley placement. Most desktop CNC machines use belts in the 400mm–1000mm range, while larger gantry systems may require 1200mm–2000mm. Check your machine's BOM or measure the existing belt's outer circumference directly. When in doubt, size up — a slightly longer belt can be tensioned; a too-short belt cannot be installed.

S5M timing belts in this series typically use fiberglass tension cord embedded in the neoprene body, providing low stretch and good dimensional stability under cyclic loading. Some variants may use steel cord for higher-load applications. Contact us to confirm the specific cord type for your selected size.