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).
Inspection report detailing spring suspension tests and the condition of rear axle components.
| Identifier | ExFiles\Box 91\2\ scan0380 | |
| Date | 23th September 1937 | |
| - 11 - HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth}1/VS.{J. Vickers}23.9.37. Spring Suspension (Continued). The springs were tested, and we give below particulars of same. Near Side. Outer. 2997 lbs @ 6.630. " 4866 lbs @ 5.410. Inner. 903 lbs @ 6.225. " 1237 lbs @ 5.035. Off Side. Outer 3035 lbs @ 6.630. " 4791 lbs @ 5.410. Inner 905 lbs @ 6.225. " 1256 lbs @ 5.035. Rear Axle LOP.G.83089. N.S.4767. 8 x 34 Ratio Gears. The general condition of this unit was good. The backlash in Crown Wheel and Pinion was .025 (Gears were fitted in Paris and have no record of original setting). G.85319 Driving Flange (to suit Hardy Spicer Propeller Shaft) had been rubbing in the bore of G.83825 Pinion Housing Cover; we suggest the annular clearance be increased from .006 to .010. G.84710 Pinion and Driving Flange were a good fit on the raper and the keys were in good condition. Both pieces were crack tested and found satisfactory. Ex.27870 Oil Retainer (hardened) was in good condition. The special Perfect Oil Seals No. 225114 were not a success; large quantities of oil had passed down the Axle Tube. G.84483 Centre Casing was in satisfactory condition and free from cracks. G.85174/5 Diff. Boxes had fidgetted slightly on the joint faces; the parts were crack tested and found satisfactory. G.84693 Bushes in Diff. Pinions had moved outwards .030; this is a common feature and is not detrimental. G.85172/3 Axle Driving Shafts were in good condition; they were checked for axial twist and found O.K. continued. | ||