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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).
Secret memorandum discussing potential weakness and abnormal wear on the front brake equaliser bracket and bushes.

Identifier  ExFiles\Box 73\3\  scan0230
Date  10th February 1924
  
49940

To HS.{Lord Ernest Hives - Chair} from DA.{Bernard Day - Chassis Design}

S E C R E T.

DA{Bernard Day - Chassis Design}3/M2.10.24.

EAC.111.
X.9941. X. 9370
X.4400 X. 9940

FRONT BRAKE EQUALISER.

In the report of the 10,000 miles, it refers to the inside bracket of this gear being rather weak, and also to the bushes having worn badly. We cannot see any force tending to bend the bracket, and we cannot see any particular reason why the bushes should wear abnormally as compared for instance with those of the front axle, and compared-for-instance with the cable forks themselves. If possible, could you give us a little more information, for instance, are you satisfied that the gear was properly lubricated? Is it possible that there might have been errors of erection in the first case, or that the differential might have been hit in some way, causing the bracket to bend, and possibly resulting in wear of the bushes? We can of course easily stiffen the brackets, but the present looks to us to be sufficiently stiff.

Regarding the lubrication this is all to be done from an Enots nipple on the differential casing. Is it possible that this method of lubrication does not reach the bushes?

DA.{Bernard Day - Chassis Design}
  
  


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