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).
Planet bearings with threads, clarifying design intentions regarding tightness and its effect on part diameter, and suggesting experimental testing.
| Identifier | WestWitteringFiles\B\January1918\ Scan4 | |
| Date | 12th January 1918 | |
| R.R. 235B (200 T) (S.D. 408. 26-4-17.) Bm. 2/156/12. ORIGINAL R4/W9.1.18. D 12 JAN 1918 RECEIVED 3 TO EH. from R.{Sir Henry Royce} [struck through: to R.L.] X.3168B. Re - Planet Bearings with Threads. We are very anxious to get this moving. There is no need to worry about the [handwritten: expansion] [struck through: expense]. I never intended the ends to be tight enough to have any appreciable effect on the diameter of the part the bearing fits upon. We may test, however, experimentally the extent in which bad workmanship affects this part, such as, excessively tight or quite slack. [Signature] R.{Sir Henry Royce} | ||