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).
Rear axle No. 30-EX after a dynamometer test, detailing parts fitted, test conditions, and results.
| Identifier | ExFiles\Box 92\5\ scan0064 | |
| Date | 10th June 1936 | |
| Handwritten top section: x302 GRY.{Shadwell Grylls} Am leaving it to you to issue any reports necessary. To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} from RHC{R. H. Coverley - Production Engineer}/RH.{R. Hollingworth} RHC{R. H. Coverley - Production Engineer}/RH{R. Hollingworth}/AP.10.6.36. Rm{William Robotham - Chief Engineer} Typed section: REPORT ON 30.EX. AFTER REAR AXLE TEST ON DYNAMOMETER. Rear Axle No.30-EX.-2-8 x 34.(Not Increased Track) The following new parts were fitted prior to test:- G.83821 Centre Casing. G.83385 Pinion Brg. G.56131 Diff.Box. G.55867 Crown wheel brg. G.54469 " " G.82645/6 Axle shafts. G.83286 Diff.pinions. G.82648 Housing for oil seals. G.83826 Pinion housing. G.83825 Housing cover. G.83719 Thrust brg.hsg. RMS.9. Brg.(Pin nose) Using existing gears (Crown wheel and pinion) Passed to Dynamometer test 29.5.36. Conditions of test on Dynamometer:- 2 hrs. in 1st.speed gear. 2 hrs. in 2nd. " " 2 hrs. in 3rd. " " ½ hr. in top " " With engine at full throttle at 1500 R.P.M. - Running time under load = 6½ hours. Total running time =11 hours. Results:- Pinion driving flange under load fouls the pinion housing cover, particulars are shown on attached sketch. Crown wheel and pinion cutting in due to shortage of oil. Oil seals on Driving shafts, the leather has become distorted and very hard, probably due to excessive heat and conditions of test. continued | ||