Hunter GSP9720JLR Operation Instructions Manual page 156

Quick-Thread®
Radial Force Variation (RFV)
Radial Runout
Reed Tachometer
Resonance
Responding Component
Road Force®
Road Force® Measurement
Road Force® Variation
Runout
Servo-Stop
SmartWeight® Balancing Technology
Source Component
148 x Glossary
Motor assisted threading of the wing nut for quick installation and removal.
A term describing a measurement of the tire uniformity, under load, measuring the
variation of the load acting toward the tire center.
A condition where the tire and wheel assembly is slightly out of round forcing the spindle
to move up and down as the vehicle rolls along a smooth surface.
A mechanical device that uses reeds to indicate the frequency and magnitude of the
vibration.
The point where a vibrating component's frequency matches the natural frequency of
another component.
The noticeable component that is vibrating.
A change in the force between the wheel and the axle while rotating under a load.
Discrepancy in road force can cause a vibration although the tire and rim may be
perfectly round and the tire is balanced.
A measurement of the wheel assembly as would be found from an actual road test of a
vehicle. The GSP9720JLR
Measurement. The load roller places up to 1400 pounds of force on the spinning tire, and
automatically measures the effects of loaded runout and tire stiffness to emulate
tire/wheel assembly force variation. Loaded runout of rim and tire stiffness calculated
®
equals the Road Force
A change in force exerted on the axle by the tire/wheel assembly while rotating under
load. Units of measurement are in pounds, Newton's, etc.
The side-to-side movement of a wheel as measured from its true center.
The ability to locate varying positions of the tire/wheel assemblies and hold the position in
place while correctional weights or OE-Matching marks are applied.
SmartWeight measures the forces placed on a wheel and balances in an effort to
reduce those forces, thus saving weight, time, and money.
A component causing another object to vibrate, such as a tire/wheel assembly.
is equipped with a load roller to take the Road Force
Measurement.
GSP9720JLR Wheel Balancer Operation Instructions
®