Full definition
Toothed belt transmitting power through positive engagement between belt teeth and pulley grooves, eliminating slip entirely. Unlike friction-driven V-belts, synchronous belts maintain exact speed ratios, critical for timing-sensitive applications. Imperial profiles: MXL, XL, L, H, XH, XXH (trapezoidal). Metric profiles: T5, T10, AT5, AT10 (trapezoidal); HTD 3M-20M (curvilinear, Gates); GT2/GT3/GT5 (modified curvilinear, higher capacity). Per ISO 5296 and ISO 13050. Tension cords: fiberglass or aramid. Body: neoprene or polyurethane. Efficiency: 97-99%. Speed up to 80 m/s. Life: 10,000-25,000 hours. Applications: CNC, packaging, robotics, printing, camshafts.