Application Data & Engineering Calculator

Calculating Pulling Force

Example:
Specified Torque t = 100Kgf.cm; Pulley Radius r = 10cm (20cm diameter)
Pull Force(kg) tA = t / r = 100 / 10 = 10kgs

Calculating Mechanical Advantage

Pulley/Sprocket Ratio of Drive : Driven, for example 1:3
Torque = 3 x tA (tA as calculated above) and Speed is 1/3 original.

Calculating Ground Speed in cm/second

RPM÷60 × π × Diameter of Wheel
Example:75RPM driving a 40cm wheel.
75RPM ÷ 60 = 1.25 Revs/Second
1.25 × 3.14 x 40 = 157cm/second which is 5.65kph

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