Table of Contents
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Dynamic Balance
Electro-Mechanical Ear
Force Matching™
Forced Vibration
Free Vibration
Frequency
Front Coning
Harmonic
Hertz
Hub Centric
Inflation Station
Lateral Runout
Lug Centric
Magnitude (Amplitude)
MatchMaker™
Natural Frequency
140 • 9. Glossary
A procedure that balances the wheel assembly by applying correction weights in two
planes so that up and down imbalance and wobble imbalance are eliminated.
A device used much like a doctor's stethoscope and is for noise diagnosis problems only.
A method of aligning the high spot of the tire's radial force variation with the low spot of
rim runout to decrease rolling vibration in the wheel assembly.
Vibrates when energy is applied.
Continues to vibrate after the outside energy stops.
The number of disturbances that occur per unit of time.
When the wheel requires the cone to center the wheel on the balancer's shaft from the
front. Also referred to as Front-Cone Mounting.
A vibration that is identified by the number of occurrences per revolution. For example, a
1st harmonic vibration has a once per revolution vibration component.
A unit of frequency: one disturbance per second.
The wheel is centered using the center hole of the wheel.
A feature on newer models of the GSP9700 that automatically inflates or deflates tires to
a predetermined air pressure.
The amount of side-to-side movement as the tire/wheel assembly rotates.
The wheel is centered using the lugholes rather than the wheel center hole.
The amount of force or the intensity of the vibration.
Allows the operator to match up four identical tires on identical rims, to achieve the
optimal combination of match mounting.
The point at which an object will vibrate the easiest.
GSP9700 Series Road Force Measurement System Operation
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