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Old 26th Jan 2011, 19:20
  #256 (permalink)  
TZ350
 
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Re DERG's post # 296 Spline Fretting and stuff

Hopefully some of you gentlemen can advise me, re, on page 3 of the PDF file

http://workspace.imperial.ac.uk/medy...ng_Trb2008.pdf

the illustration shows an " External spline run-out " on the external component. Is this the " 2.65 mm spline crown " dimension as mentioned in the original AWD, re the spline wear problem and is this a result of uncontrolled/unexpected wear of the thrust washers from vibration/harmonics ? Is the disintegrated turbine disc the equivalent of the " Internal component " ? I appreciate that this drawing is not type specific, but I have been confused as to what the 2.65 mm referred and there were no mentions of which axial faces were wearing.

Also, is the helix on the splines designed to continually apply the thrust loading towards the thrust washers ? Thank you..
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