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).
Condition report on the servo motor, rear axle, and rear brakes.
| Identifier | ExFiles\Box 83\1\ scan0274 | |
| Date | 6th November 1936 | |
| -6- RHC{R. H. Coverley - Production Engineer}/RH.{R. Hollingworth}1/AP.6.11.36. Servo Motor. Thrust bearing tracks very badly indented by balls. The two keyways in the spindle are worn badly by the locating tabs on the retaining washer. Base of cams indented by balls, these are a definite improvement on previous cams. The indents by balls on thrust washers are still very deep and a poor job. Locating tabs on the star springs are biting into the keyway on the spindle. Suggest that keys be modified to fit in the bottom of keyway instead of against the threads in keyway, which is a poor job. ---------------- Rear Axle. 10-41 ratio - incorporating N.Sch.4810 Extended Pinion Shaft. General condition good. Thrust washers for differential pinions and axle shafts slightly scored. Bushes in diff. box slightly scored. Centre case GB.2055 - general condition good. Diff. boxes GB.610/11 magnetic tested for cracks and found O.K. Driving shafts in S/ENGR. near side GB.1379 twisted 2°. Off side GB.1378 O.K. - both shafts slightly scored on diff. box bearing section. Pinion GB.2074 with extended shaft - general condition good. Magnetic tested for cracks and found O.K. All oil seals good. No signs of driving flange fouling thrust bearing housing. Slight traces of oil found in near side tube on dismantling. O.S. Driving shafts are not produced to drawing on the section where oil seal fits instead of a radius there is a sharp edge and this is likely to cause a failure. ---------------- Rear Brakes - standard production. General condition good. Foot brake linings are shearing forward. Brake linings S.5805 grooved. ---------------- continued. | ||