Measure the center-to-center distance between your two pulleys, then use the standard belt length formula: Belt Length = 2 × C + π × (D1 + D2) / 2, where C is the center distance and D1/D2 are the pulley pitch diameters. The listed size is the total inner circumference of the closed loop. For example, 784mm ≈ 30.9", and 3570mm ≈ 140.6". Always round up to the next available size if your result falls between options.

HTD 14M belts are generally designed for high-torque synchronous drive applications. The 50mm width typically supports significantly higher power transmission than narrower belts of the same pitch. Actual capacity depends on pulley diameter, operating speed, and installation tension — consult your drive system's engineering specifications for precise ratings.

HTD timing belts are typically constructed from neoprene rubber, which offers moderate resistance to moisture and mild chemicals. They are generally suitable for light outdoor exposure but are not recommended for continuous submersion or prolonged contact with oils, solvents, or harsh chemicals without a protective enclosure. Contact us to confirm the specific compound for this belt.

This belt requires HTD 14M profile pulleys with a groove width of 50mm or greater. The HTD curvilinear tooth profile is not interchangeable with GT2, T10, T14, or trapezoidal (MXL/XL/L/H) pulleys. Always confirm your pulley is labeled HTD 14M before ordering.

Belt width is determined by the torque and power requirements of your drive system. Wider belts distribute load across more teeth simultaneously, reducing tooth stress and allowing higher torque. If your machine's pulleys have a 50mm groove, this belt is the correct match. For lighter-duty applications, a narrower belt in the same 14M pitch may be sufficient — but always match the belt width to the pulley groove width.

HTD (High Torque Drive) belts use a rounded, curvilinear tooth profile that distributes stress more evenly across the tooth root compared to the sharp-angled teeth of trapezoidal belts (XL, L, H, etc.). This generally results in higher torque capacity, quieter meshing, and longer service life under heavy or shock loads — making HTD the preferred choice for CNC machines, robotics, and industrial synchronous drives.

HTD 14M belts are typically reinforced with fiberglass or steel tension cords embedded in the rubber body. Fiberglass cords offer excellent flexibility and fatigue resistance; steel cords provide higher tensile strength for very heavy-load applications. Contact us to confirm the specific cord material for this listing if your application requires a particular specification.