Belt Length Calculator
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🔗 Belt Length Calculator

Calculate belt length, center distance, and pulley dimensions for various belt drive configurations

📐 Belt Length Formulas

L = 2C + π(D₁+D₂)/2 + (D₁-D₂)²/(4C)
C = (L - π(D₁+D₂)/2)/2 + √((L-π(D₁+D₂)/2)²/4 - (D₁-D₂)²/4)
L = 2C + π(D₁+D₂)/2 (Approximate)
C = (L - π(D₁+D₂)/2)/2 (Approximate)
L = belt length, C = center distance, D₁ = large pulley diameter, D₂ = small pulley diameter, π = pi (3.14159)

💡 Tips

  • Use exact formula for precise calculations
  • Consider belt stretch and tension
  • Minimum center distance should be (D₁+D₂)/2
  • Maximum center distance depends on belt type
  • Account for belt thickness in calculations
  • Consider pulley alignment and tensioning

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