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TYMA CZ
belts and
transmission systems
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What do the abbreviations Li, La, Lw, Le, Ld mean?

  • Li = belt inner length
  • La = belt outer length
  • Lw = belt working length (Lw = Ld)
  • Le = belt effective length

The conditions are given among these lengths. There exists a precise formula for converting lengths for individual V-belts.