Old 6th Dec 2018, 16:38
  #950 (permalink)  
[email protected]
 
Join Date: Apr 2000
Location: EGDC
Posts: 7,200
OAP - the nut at the duplex bearing end was clearly overtightened - hence my comment about assembly problems. It may be that the TR pitch change mechanism has to be taken apart and greased regularly which ,might make the over-tightening a servicing error instead.

If the nut is over-tightened and impinges on the duplex bearing, you have a probable cause for the excess heat and seizing of the bearing.
crab@SAAvn.co.uk is offline