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      12-13-2008, 03:50 PM   #49
SoYank
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Drives: 2009 E90 335i MT
Join Date: Mar 2006
Location: Vinton, Virginia

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Quote:
Originally Posted by dxb335d View Post
what does radial run out mean bud?
If you mounted the wheel on an axle and positioned a runout gauge along the circumference of the rim, as the wheel is rotated 360° the deflection of the gauge can not be more than 0.3mm.

Likewise, if you mount the wheel on a calibrated axle (one that has the mounting plate exactly 90° to the spin axis, i.e., 0% runout) and position a runout gauge at the outer edge of the rim, the gauge can not deflect more than a specific amount else the wheel would be considered out of tolerance.
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2009 E90 335i Montego Blue · Black Leather · Burl Walnut · 6MT · US Spec
SatNav • ZPP • ZCW • 6FL • TPMS • iDrive • PDC • HWS • Xenons • BMW Assist • Power Rear Sunshade • Logic 7
European Taillights • Rear Foglamp • OEM Alarm • PicoTray • DataToys XM-DVR • Multi-view Processor
Quaife ATB LSD • Short Shift Knob • Hartge Anti-Roll Bars • AP Racing Front Brakes • 19" Style 269
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