Gears

Gears effort force vs. load force.

A gear is a mechanical device that transmits rotary motion by changing the magnitude and line of action of the effort force.

The effort force can be expressed as:

F = W (r₁ r₂ ... rₙ) / (R₁ R₂ ... Rₙ)

Where:

Calculator

Load Force (W) (N)

Wheel 1 Inside Diameter (r₁) (m)

Wheel 1 Outside Diameter (R₁) (m)

Wheel 2 Inside Diameter (r₂) (m)

Wheel 2 Outside Diameter (R₂) (m)

Wheel 3 Inside Diameter (r₃) (m)

Wheel 3 Outside Diameter (R₃) (m)

Effort Force (F)-- N

Effort Force (F)-- kN

Wheel	Inside Diameter (r)	Outside Diameter (R)	Ratio (r/R)
Wheel 1	0.05	0.12	=A2/B2
Wheel 2	0.06	0.13	=A3/B3
Wheel 3	0.07	0.14	=A4/B4