Element characterization
Timing belt drive - Operating characteristics

The length of the belt, and consequently the pitch p_b, can be obtained in various ways, the simplest being to unwind the belt without any longitudinal tension and measure the length directly over a sufficient number of pitches, using suitable means to ensure accuracy. The standardized method (NF ISO 9010) recommends measuring the centre-to-centre distance obtained with a belt mounted on two master pulleys applying low tension, and deducing the length on the assumption that the free strands are straight-line segments (figure 17,...