Comparative weight analysis of a Condor thrust bearing versus a New Departure bearing.
| Identifier | ExFiles\Box 42\1\ Scan135 | |
| Date | 8th February 1926 guessed | |
| CONTD :- -2- COMPARATIVE WEIGHTS OF STANDARD CONDOR(Aero Engine) THRUST BEARING TO L.O.P. E.25256 AND NEW DEPARTURE BEARING NO.216. Detail weights of actual thrust pieces. Type. Piece No. Description. Weight of 1 set. Condor(Aero Engine) to E.25559 Washer. .062 lbs. L.O.P. E.25560 Dist. piece. .265 " E.25256. E.25563 Thrust washers. 4.812 " E.25564 Dist. Piece. 1.125 " E.25566 Ball Cage. .825 " E.25567 Ball Cage. .840 " G.4733 Rivet. .054 " .907 Thrust balls. 1.531 " WEIGHT :- 9.514 lbs. Weight of details which will presumably be deleted or modified if N.D. type of thrust is adopted. G.6355 Lock ring. .060 lbs. E.25174 Outer race roller brg. 1.062 " E.25188 Oil retainer. .250 " E.25189 Inner race roller brg. 1.062 " E.25190 Roller cage plate. .172 " E.25204 T. Housing nut. .937 " E.25207 T.H. Roller cage. .578 " E.25561 Adjusting washer. .093 " E.25562 Locking ring. .070 " E.25565 T. Housing Nut. 1.687 " E.25568 Prop. T. housing. 8.312 " WEIGHT :- 14.283 lbs. TOTAL WEIGHT :- 23.797 lbs. No. 216 __________ Inner race. 1.953 lbs. New Depart- __________ 2 Outer races. 1.625 " ure BRG. Outer shell. .812 " __________ 2 ball cages. .531 " Thrust balls. .968 " __________ WEIGHT :- 5.889 lbs. DIFFERENCE IN WEIGHT :- 17.908 lbs. RHC. {R. H. Coverley - Production Engineer} | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).