Posted by lee on March 31, 2005 at 20:14:29:
In Reply to: T.I.R posted by radek on March 30, 2005 at 10:00:08:
T.I.R = Total Indicating Reading
An example would be using a Dial Indicator
and verifing an outside diameter between centers
or any Datum as called per the soec. or Blue Print
for example .0005 TIR , The dial indicator can not move more than .0005 in. Total or it violates
the blue print. this is old style , and rarely used now. Blue prints now use Concentricity ot Total Runout. or Runout.
Gears can be checked with with PINS & and an indicator to verify Pitch Diameter Runout or TIR
this would be pitch diameter concentricity.
Or TCE~Total Composite Error with a know master gear.
TTCE~Tooth to Tooth Composite Error
Total spacing error. ect
Sorry may be some one esle can supply a DIN equiv.
I use The Enlish or Inch system.
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