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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).
Post-test condition report detailing spring poundages and wear on various axle and brake components.

Identifier  ExFiles\Box 91\4\  scan0287
Date  3rd October 1935 guessed
  
8.

SPRING POUNDAGES

O.S. Springs

Before test After test Loss of Poundage

Outer 3696 lb. 3654 lb. 42 lb.
Inner 1896 lb. 1876 lb. 20 lb.

N.S. Springs

Outer 3710 lb. 3700 lb. 10 lb.
Inner 1841 lb. 1827 lb. 14 lb.

FRONT AXLE

All needle roller tracks show indentations due to wedging of rollers.

Steering arm pivot - indentations on both sections of pivot and in upper and lower bearing housings.

Cross steering tubes - two spherical sockets (outer ends) plucked on seating.

Pivots - N.S. in good condition. O.S. badly marked on ball track, probably as a result of suspension failure.

Pivot Pins - Both pins badly worn and scored on bottom bearing section diametrically opposite setscrew. i.e. towards the outside of car. Bearing housings also badly scored.

Bottom Fulcrum Pins G.82668 - outer end - deep indentations due to rollers. Hardness checked and found to be within drawing range of C57-65 Rockwell. The outer races G.81609 for these pins are also in poor condition and appear to have been creeping in the yoke.

FRONT BRAKES

General condition good. Indentations on internal and external tracks of all needle bearings.

FRONT BRAKE EQUALIZERMECHANISM S/ZN

Fulcrum pin G.83070/worn on side of needle track.

FRONT BRAKE INTER SHAFT

Condition good.

REAR BRAKE EQUALIZING MECHANISM

Mechanism in general marked by exposure to stones. Pendulum lever G.83389 badly worn on ball track and indentations on needle bearing track.

These remarks also apply to the ball track on the spindle G.82936, and in regard to the needle track in the actuating lever G.83390.

N.B. Spindle G.82936 is produced in S/N i.e. bearing surfaces are unhardened.
  
  


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