Rolls-Royce Archives
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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).
Investigating the cause of a dynamo drive bearing failure on a car.

Identifier  ExFiles\Box 146\2\  scan0334
Date  21th August 1937
  
FRANCO-BRITANNIC AUTOS LTD.
CONCESSIONNAIRES DE ROLLS-ROYCE, BENTLEY & C.
PARIS LEVALLOIS-PERRET
REGISTRE DU COMMERCE SEINE 262.464 B
RÉFÉRENCE
PRIÈRE DE RÉPONDRE A
SERVICE DES VENTES & MAGASIN D'EXPOSITION
12, Avenue George V.{VIENNA} PARIS VIIIe
Tél. BALZAC 02-01. 02-02
Télgr.: FRANCOBRIT-PARIS
ATELIERS DE RÉPARATION
25, Rue Gide LEVALLOIS-PERRET (Seine)
Télgr. FRANCOBRIT-LEVALLOIS-PERRET
Tél.: WAGRAM 68-38
PEREIRE 31-04
[Stamp]: AUG 23 1937
[Top Left]: 1245
[Top Right]: HS{Lord Ernest Hives - Chair}
[Handwritten Note]:
hwm 21/8/37
Rm.{William Robotham - Chief Engineer}
You no doubt got my message from the Repair dept- that new gears were required for B.A.Z 20 owing to the seizure of dynamo drive bearing & consequent failure of the intermediate wheel. which had several teeth cut away entirely.
I have been over all the possible causes of failure & so far have not been able to find a solution.
It is extremely unlikely to have been due to insufficient clearance in for the bearing as the car has run over 20.000 miles.
Dr was driving at the time & he is confident oil pressure was maintained.
  
  


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