Transmission System Calculation Platform

Interactive belt drive layout tool. Visualize open, cross, half-cross, and multi-pulley drives. Drag to adjust and see real-time recalculations.

Pulley D₁ (mm)

Pulley D₂ (mm)

Center Distance (mm)

💡 Drag pulleys in the diagram to adjust positions interactively

Drive Pulley

Driven Pulley

Belt Path

Belt Length

Speed Ratio

Wrap Angle (D₁)

Wrap Angle (D₂)

Belt Length Formula

L = 2C + π(D₁+D₂)/2 + (D₂−D₁)²/(4C)

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