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).
Standardisation of parts report for a Ransome & Marles rear axle pinion thrust race to improve reliability on Bentley vehicles.
| Identifier | ExFiles\Box 84\4\ scan0020 | |
| Date | 9th April 1934 | |
| COMPLETED 1.5.34. BENTLEY STANDARDISATION of PARTS. Description of Parts. RANSOME & MARLES REAR AXLE PINION THRUST RACE, TYPE 3.MDJT.30. Origin. To improve reliability. Report of Experimental Test. We have had seven failures of the thrust bearings on Bentley rear axles. The improved R.{Sir Henry Royce}& M.{Mr Moon / Mr Moore} will fit in in place of the present standard without modification. This bearing has run 20,000 miles on 4-B-IV car. X No. 202. Drawing No. Part List Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part £ - 16 - 6 Cost of New Part £ - 19 - 6 Difference per Car £ - 3 - 0 INCREASE Signature from Cost Dept. that above is correct. G/RL 11-4-34 Cost of Parts in Works which will be scrapped if commenced on:- Series.......£....... Series.......£....... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 20-4-34. | Agreed Sg.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} | 12.4.34. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 13.4.34. | Agreed C. RG.{Mr Rowledge} | | Rg.{Mr Rowledge} absent. DA.{Bernard Day - Chassis Design} | 27.4.34. | Agreed Da.{Bernard Day - Chassis Design} Though the double failure of the cage seems to require further investigation, as it may be due to the clearance on the outside dia. of the thrust race. BY.{R.W. Bailey - Chief Engineer} | 13.4.34. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 13.4.34. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 26.4.34. | Agreed AE. It is agree that we must use this pro tem although it has not got 100% clearance on account of cage fracture with cage in bronze. BN.{W.O. Bentley / Mr Barrington} | 13.4.34. | Agreed Bn.{W.O. Bentley / Mr Barrington} SFT.{Mr Swift} | 12.4.34. | Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} | 12.4.34. | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} | 12.4.34. | Agreed Hs.{Lord Ernest Hives - Chair} | ||