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).
Issues with the S.S. starter motor pinion splines, comparing them to a Bosch part and requesting improvement.
| Identifier | ExFiles\Box 64\4\ scan0172 | |
| Date | 1st February 1929 | |
| x768B BY.{R.W. Bailey - Chief Engineer} from EFC. c. BY/RD. EFC5/Tl.2.29. S.S. STARTER MOTOR PINION. The splines which take the drive from motor armature to pinion appear to be either too short, or to be produced too inaccurately for a satisfactory job. We have noted that side play rapidly develops which interferes with the meshing of the teeth. We are handing you an example of these splines in the form of bur "dummy" pinion (used for brake tests) together with the pinion from the Bosch motor for comparison of the type of spline used in that case. Is it possible to have some improvement in this S.S. piece ? EFC. | ||