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The Tooth Shapes of the Timing Belt
The tooth profile of the Timing Belt has three types: arc teeth, flat top arc teeth and trapezoidal teeth.
The arc tooth Timing Belt is also called HTD synchronous belt, and the common tooth shapes are HTD-3M, 5M, 8M, 14M and 20M;
Flat-top arc tooth Timing Belt is also called STD Timing Belt. Common tooth shapes are S2M, S3M, S4.5M, S5M, S8M and S14M;
Common tooth types of trapezoidal tooth Timing Belt are MXL, XL, XXL, L, H, XH, XXH, T2.5, T5, T10, T20, AT5, AT10, AT20. The trapezoidal tooth synchronous belt is divided into single-sided teeth and double-sided teeth. Double-sided teeth are divided into opposite teeth (DA) and wrong teeth (DB).
