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 report for Bentley main bearings to address hammering out and engine roughness.
| Identifier | ExFiles\Box 115\3\ scan0015 | |
| Date | 25th June 1937 | |
| RR 755B (10H) 26074 2-11-36 WHK 24999 COMPLETED 8.7.37. BENTLEY STANDARDISATION OF PARTS. Description of Parts: BENTLEY MAIN BEARINGS (A.C.2). Date: 25.6.37 X No. 1020. Drawing No. Origin: Hammering out causing excessive clearance and engine roughness. Report of Experimental Test. The above bearings which were cast in normal pots (not die cast) have run satisfactory 17,000 miles test on 3-B-IV without any hammering out. Bearings otherwise in good condition. MATERIAL £ s. d.{John DeLooze - Company Secretary} LABOUR £ s. d.{John DeLooze - Company Secretary} CHARGES £ s. d.{John DeLooze - Company Secretary} TOTAL £ s. d.{John DeLooze - Company Secretary} Cost of Old Part Cost of New Part Nett Increase/Decrease: NEGLIGIBLE. Signature from Cost Dept. that above is correct. G/Rh{R. Hollingworth} 22.6.37. INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 7.7.37 | Agreed Sg.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} C. | 30.6.37. | Agreed C. E.{Mr Elliott - Chief Engineer} | 1.7.37. | Agreed E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} | 30.6.37. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 30.6.37. | Agreed By.{R.W. Bailey - Chief Engineer} SFT.{Mr Swift} RHC.{R. H. Coverley - Production Engineer} | 30.6.37. | Agreed RHC.{R. H. Coverley - Production Engineer} MX.{John H Maddocks - Chief Proving Officer} | 29.6.37. | Agreed Mx.{John H Maddocks - Chief Proving Officer} RM.{William Robotham - Chief Engineer} | 25.6.37. | Agreed Rm.{William Robotham - Chief Engineer} | ||