FREEPHONE:+86(411)82688288 TEC Belting Company Products:V-Belt Conveyor Belt Transmission Belt Automotive Timing Belt Ribbed Belt

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         We, TEC BELTING COMPANY, the subsidiary of TEC GROUP INC. are one of the biggest suppliers in China who specializes in the manufacture of all kinds of Power Transmission Belts and Conveyor Belts, including Industrial Belt, Agricultural Belt, Automotive Belt, Motorcycle Belt, Fabri…

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  • Address: Industrial Zone, Dalian, China
  • Tel: +86(411)82688288
  • Fax: +86(411)82688288
  • E-mail: sales@tecgroupinc.com

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Specifications

To fully specify a belt, the material, length, and cross-section size and shape are required. Timing belts, in addition, require that the size of the teeth be given. The length of the belt is the sum of the central length of the system on both sides, half the circumference of both pulleys, and the square of the sum (if crossed) or the difference (if open) of the radii. Thus, when dividing by the central distance, it can be visualized as the central distance times the height that gives the same squared value of the radius difference on, of course, both sides. When adding to the length of either side, the length of the belt increases, in a similar manner to the Pythagorean theorem. One important concept to remember is that as D1 gets closer to D2 there is less of a distance (and therefore less addition of length) until its approaches zero.

On the other hand, in a crossed belt drive the sum rather than the difference of radii is the basis for computation for length. So the wider the small drive increases, the belt length is higher.