About the Gear Mesh Visualizer

The Gear Mesh Visualizer shows how two spur gears interact when engaged together. It demonstrates the fundamental principle of gear meshing — two gears with the same module (tooth size) mesh correctly when placed at the proper center distance.

Key Concepts

• Gear Ratio: The ratio of teeth on gear 2 to teeth on gear 1 (N2/N1). This determines the speed reduction and torque multiplication.
• Center Distance: The distance between gear centers: c = m × (N1 + N2) / 2. Both gears must share the same module.
• Contact Ratio: The average number of teeth in contact. Values above 1.2 ensure smooth power transmission.
• Direction: External meshing gears rotate in opposite directions.

Formulas

• Gear Ratio: i = N₂ / N₁
• Center Distance: c = m × (N₁ + N₂) / 2
• Output Speed: ω₂ = ω₁ / i
• Output Torque: T₂ = T₁ × i