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).
Axle design focusing on strength, weight reduction, and competitor analysis.
| Identifier | ExFiles\Box 2\6\ B002_X 140 141 157-page016 | |
| Date | 21th May 1923 guessed | |
| R.R. (2) Axle & Wheels etc. by F H RoyceSir Henry Royce page R.R. strength, - the strength should be reckoned by its capacity to carry a load on the centre of the axle. Tie rod must be fitted. As this axle has been quite strong enough the weight compared with strength of our present axle should at least be as good. To reduce weight I have already suggested thinner flanges. The question of less bolts should also be considered and it should be ascertained by calculation and experiments whether much thinner flanges with the same number of bolts, or only slightly thinner flange with less bolts will give the least weight with maximum strength of tube. I have also already made the suggestion of having bevels with reduced diameter; this of course would materially reduce the weight if otherwise satisfactory. The Delaunay-Belleville axle should be weighed, and then dismantled for examination as regards size of bevel and shape of teeth etc; also relative strength as far as can be obtained by inspection and calculation. - Only criticism from strength point of view as its silence is unsatisfactory. Mercedes is a good specimen of a sufficiently strong | ||