Centrifugal Force Due To An Imbalance - Suzuki XL7 2007 Service Manual

General Information: 0A-22

Centrifugal Force Due to an Imbalance

1. Location of Imbalance (Degrees) 2. Centrifugal Force Acting on Spindle
A spinning object with an imbalance generates a centrifugal force. Performing the following steps will help to
demonstrate centrifugal force:
1. Tie a nut to a string.
2. Hold the string. The nut hangs vertically due to gravity.
3. Spin the string. The nut will spin in a circle.
Centrifugal force is trying to make the nut fly outward, causing the pull you feel on your hand. An unbalanced tire
follows the same example. The nut is the imbalance in the tire. The string is the tire, wheel, and suspension assembly.
As the vehicle speed increases, the disturbing force of the unbalanced tire can be felt in the steering wheel, the seat,
and the floor. This disturbance will be repetitive (Hz) and the amplitude will increase. At higher speeds, both the
frequency and the amplitude will increase. As the tire revolves, the imbalance, or the centrifugal force, will alternately
lift the tire up and force the tire downward, along with the spindle, once for each revolution of the tire.