Lubrication issues with the S.S. Clutch and the resulting modifications.
| Identifier | ExFiles\Box 20\1\ Scan048 | |
| Date | 3rd November 1929 | |
| X.872 To R. {Sir Henry Royce} from Hs {Lord Ernest Hives - Chair} /Tsn. c. Sg. {Arthur F. Sidgreaves - MD} c. Mor. E. {Mr Elliott - Chief Engineer} c. Da. {Bernard Day - Chassis Design} EV. {Ivan Evernden - coachwork} Hs {Lord Ernest Hives - Chair} /Tanl/AM3.11.29. LUBRICATION OF S.S. CLUTCH. We have found experimentally that if the Phantom II clutch be assembled dry and then oiled through the usual oil hole in the coupling shaft, no oil gets through the spherical joint on running the engine, to lubricate (a) The rear spherical surface (b) The large dia. splines on the coupling shaft (c) The rear ball bearing. As a result of this we made the following modifications, some of which are shewn on the attached sketch :- (1) 4 holes in the coupling shaft to pass oil through to the chamber containing the splines. (2) Sheet metal collector ring rivetted and sweated to the rear cover of the clutch, together with drain holes. (3) (Not shewn on sketch) Extension pipe screwed into the coupling shaft at the oil hole, with oil gun nipple on the end. This was done as a temporary expedient for experimental purposes. We ran a clutch with the above modifications on a rig, driven by belt, and oiled it every 1/4 hour. We found that surplus oil first started to come out of | ||
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).