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Old 03-21-2005, 03:27 PM
D-CEL D-CEL is offline
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Join Date: Jan 2005
Location: Rancho Cucamonga, ca
Cobra Make, Engine: SPF 239
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NoGood,

"Out-of Round" or "Roundness" is " the deviation from a theoretically true circle. This is commonly measured by mounting the item to be checked on a spindle and rotating the part. Test or dial indicators can be used (I like a test indicator myself). A caliper can be used to measure the deviation in diameter, however this will only show a two-point eccentric condition (out of round). It will not show a three-point eccentricity. Other critical (and often overlooked) dimensional components of brake rotors are flatness and parallelism of the faces.

D-cel
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