DSP9200 Series Balancer Operation Instructions 6. Glossary
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Reed Tachometer
A mechanical device that uses reeds to indicate the frequency and magnitude of the
vibration.
Resonance
The point where a vibrating component’s frequency matches the natural frequency of
another component.
Responding Component
The noticeable component that is vibrating.
Servo-Stop
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.
Source Component
A component causing another object to vibrate, such as a tire/wheel assembly.
Spindle-Lok
®
A feature that locks the spindle in place by depressing the foot pedal.
Static Balance
A procedure that balances the wheel assembly using only a single weight plane.
TDC
An abbreviation for top dead center. Also referred to as 12 o’clock.
Torque Sensitive Vibration
The vibration occurs when accelerating, decelerating, or applying the throttle.
Total Indicated Reading (T.I.R.)
Data measurements taken by the load roller (measured in lbs. or kg) or Dataset® Arms
(measured in inches or millimeters) representing the actual runout measured. The T.I.R.
data represents the difference in value between the highest and lowest value measured.
Transference Path
The object(s) that transfer the frequency.
Vibration
A shaking or trembling, which may be heard or felt.
Wheel Diameter
Dimension measured on the inside of the rim at the bead seats.
Wheel Offset
The measured distance between the mounting face of the wheel and the centerline of the
rim.
Wheel Width
Dimension measured on the inside of the rim between the bead seats.
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