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).
Enabling the withdrawal of the 20HP hypoid rear axle pinion for inspection.
| Identifier | ExFiles\Box 136\5\ scan0217 | |
| Date | 21th January 1930 | |
| BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} C. to SG.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} C. to RHC.{R. H. Coverley - Production Engineer} X2066 DA{Bernard Day - Chassis Design}1/M21.1.30. X.2066 X.5350. 20HP. HYPOID REAR AXLE. We have looked into the question of enabling the hypoid pinion to be withdrawn for the purpose of inspecting the bedding without disturbing the gear. We should like to point out that this is a requirement which has never been called for before. It has always been necessary to draw the gear to one side. We see that it can be done on the SS.{S. Smith} because the outer dia. of the rollers on the nose bearing is only slightly more than the distance from the centreline of the pinion to the inside edge of the gear teeth, and the rollers can pass through the tooth gaps. We now confirm that this same result could be obtained on the 20HP. by using the next size bearing, and examining it comparative-ly we find that it is in a favourable position compared with the corresponding roller on SS.{S. Smith} We have shewn in a table on N. sch. 3023. herwith how it compares. We suggest that an axle should be fitted up in this way and subjected to the heaviest test as soon as possible. DA.{Bernard Day - Chassis Design} | ||