Rolls-Royce Archives
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).
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DescriptionDateIdentifier
Follow-up memo regarding an invoice for bearings and bushes received from Messrs. Vandervell.18th Jun 1940Box 115 \ 2  scan0569
Listing outstanding chassis engine bearings from Vandervell Products Ltd.18th Jun 1940Box 115 \ 2  scan0570
Payment approval for an invoice for Big End Bearings, Small End Bushes and tooling costs.5th Jul 1940Box 115 \ 2  scan0571
Short typed message to Johnson regarding a visit to Derby.8th Jul 1940Box 115 \ 2  scan0572
Investigation into the Merlin main pressure lubrication system, including bearing material development and comparisons with Bentley systems.22th Jul 1940Box 115 \ 2  scan0573
Comparison of engine bearing and lubrication schemes for the Kestrel, Merlin, and Bentley models.22th Jul 1940Box 115 \ 2  scan0574
Comparison of Merlin and Bentley engine lubrication systems, bearing data, and failure rates.22th Jul 1940Box 115 \ 2  scan0575
Analysis of big-end and main bearing failures, considering factors like oil flow, aeration, bearing types, and engine test conditions.22th Jul 1940Box 115 \ 2  scan0576
Bearing lubrication, proposing an improved position for the oil feed hole to optimize performance under load.22th Jul 1940Box 115 \ 2  scan0577
The development and testing of various main bearing alloys, focusing on anti-seizing and fatigue properties.19th Jun 1940Box 115 \ 2  scan0578
Test results for various engine bearing designs, alloys, and lubrication schemes.19th Jun 1940Box 115 \ 2  scan0579
Proposed future programme for testing the anti-seizing properties of various alloys, bearings and lubrication schemes.19th Jun 1940Box 115 \ 2  scan0580
Statistical report on Merlin IV and X engines returned for service, detailing damage causes and failure types for March-May 1940.1st Jun 1940Box 115 \ 2  scan0581
Summary report on faults, leaks, and bearing failures for Merlin III and X engines returned from service.31th May 1940Box 115 \ 2  scan0582
History of lubrication and modifications for the Kestrel and Merlin engines' main pressure systems.10th Jul 1941Box 115 \ 2  scan0583
History of modifications to Bentley bearings and their lubrication.7th Aug 1937Box 115 \ 2  scan0584
Causes and proposed solutions for big end failures in the Merlin engine.23th Jul 1940Box 115 \ 2  scan0585
The development of lubrication systems, comparing Kestrel and Merlin engine modifications.23th Jul 1940Box 115 \ 2  scan0586
Mechanical testing report on Vandervell and other specified bearings for the Merlin engine.24th Jul 1940Box 115 \ 2  scan0587
Vandervell bearing tests, detailing cracking issues and recommendations for the Merlin crankcase.24th Jul 1940Box 115 \ 2  scan0588
Pricing discrepancies on orders for Vandervell bearings.24th Jul 1940Box 115 \ 2  scan0589
Letter to Messrs. Delco-Remy Hyatt requesting three copies of 'New Departure Bearing Handbooks' Vol. I & II.19th Aug 1940Box 115 \ 2  scan0590
Letter to Hoffmann Manufacturing Co. regarding the supply and delivery of bearings.5th Sep 1940Box 115 \ 2  scan0591
Cover note for reports from Ransome & Marles on tests of Bentley II axle pinion bearing preload and cage failures.5th Sep 1938Box 115 \ 2  scan0592
Test report on Bentley rear axle pinion bearings to investigate the effects of tilted outer cages.5th Sep 1938Box 115 \ 2  scan0593
Results of multiple bearing and cage tests, numbered 8 to 13, and conclusions drawn.14th Dec 1937Box 115 \ 2  scan0594
Test report on the alteration in fit, wear on tracks, and reduction in ball diameter of a bearing.14th Dec 1937Box 115 \ 2  scan0595
Letter to Messrs. Ransome & Marles Bearing Co. regarding the future supply of clutch thrust bearings.20th Sep 1940Box 115 \ 2  scan0596
Requirements for fitting connecting rods and caps for experimental cars.10th Oct 1940Box 115 \ 2  scan0597
Letter to Vandervell Products Ltd. querying tool charges and costs for main bearings on order 17746.8th Oct 1940Box 115 \ 2  scan0598
Blueprints for proposed tri-metal bushes for a Layshaft, to be sent to Vandervell Ltd.3rd Oct 1940Box 115 \ 2  scan0599
Design proposal for tri-metal bushes for a Layshaft on a Bentley I.3rd Oct 1940Box 115 \ 2  scan0600
Inquiry to Vandervell Products Ltd. regarding the supply of trial tri-metal bushes for a car gearbox.7th Oct 1940Box 115 \ 2  scan0601
Advice note from Ransome & Marles Bearing Co. Ltd. for the consignment of rollers.2nd Oct 1940Box 115 \ 2  scan0602
Advice note from Ransome & Marles Bearing Co. Ltd. regarding a sample bearing.7th Oct 1940Box 115 \ 2  scan0603
Running experience with Vandervell strip main bearings in various engines with aluminium crankcases.16th Oct 1940Box 115 \ 2  scan0604
The running experience of Vandervell strip main bearings fitted in aluminium crankcases.16th Oct 1940Box 115 \ 2  scan0605
Layshaft bearing lubrication, suggesting a modification to the second motion shaft is unnecessary.21th Oct 1940Box 115 \ 2  scan0606
Agreement to delete a .094 diameter hole drilled in the second motion shaft.26th Oct 1940Box 115 \ 2  scan0607
Summary of the allocation and fitting of American ball bearings to various Merlin engines for development tests.20th Nov 1940Box 115 \ 2  scan0608
Status report on various Merlin engine tests and the progress of fitting American-made bearings.22th Nov 1940Box 115 \ 2  scan0609
Suggesting a trial of a cageless clutch thrust bearing to investigate a noise issue.22th Nov 1940Box 115 \ 2  scan0610
Letter from a bearing supplier discussing design alternatives for a clutch throwout bearing and potential noise issues.20th Nov 1940Box 115 \ 2  scan0611
Selection and testing of materials for engine big end bearings.26th Nov 1940Box 115 \ 2  scan0612
Letter from a bearing supplier regarding a modified full-type bearing sample and its expected noise.9th Dec 1940Box 115 \ 2  scan0613
Suggesting a road test for a new clutch thrust bearing from Ransome & Marles to resolve a noise issue.11th Dec 1940Box 115 \ 2  scan0614
Testing ball bearings with altered cages and a simplified rear axle to address bearing life and noise issues.4th Jan 1941Box 115 \ 2  scan0615
Use of Norma Hoffmann S.7 and US.7 self-aligning ball bearings for Merlin engines.2nd Jan 1941Box 115 \ 2  scan0616
Letter to Howard Graham, Ltd. concerning modifications and sketches for two Harris bearing applications, detailing loads and angular movements.5th Feb 1941Box 115 \ 2  scan0617
Letter from Vandervell Products Ltd. to W.A. Robotham regarding a future meeting to discuss developments.5th Dec 1940Box 115 \ 2  scan0618
Sending a photograph and blueprint of a Junkers Crankshaft de-aerator and returning General Motors folders.4th Mar 1941Box 115 \ 2  scan0619
Cross-section drawing of the bleeding system for a Junkers Jumo 211A engine crankshaft.8th Mar 1941Box 115 \ 2  scan0620
Photograph showing the disassembled components of a Junkers engine crankshaft oil-bleeder.28th Jun 1941Box 115 \ 2  scan0621
Invoice from Vandervell Products Ltd for Outer Rod Bearings.28th Jun 1941Box 115 \ 2  scan0622
Query to Vandervell Products Ltd. about an invoice for outer rod bearings that cannot be traced.7th Jul 1941Box 115 \ 2  scan0623
Letter from Rotol Airscrews requesting a recommendation for a supplier of babbitted lead-bronze steel-backed bearing shells.2nd Aug 1941Box 115 \ 2  scan0624
Letter to Rotol Airscrews Ltd. discussing the use of tri-metal versus straight babbitt bearings for engines.5th Aug 1941Box 115 \ 2  scan0625
Letter to The Hoffmann Engineering Co., Ltd. requesting the purchase of roller and ball bearings for a Tank Priority order.18th Aug 1941Box 115 \ 2  scan0626
Letter to The Hoffmann Engineering Co. Ltd. cancelling an unofficial order for bearings.22th Aug 1941Box 115 \ 2  scan0627
Letter to Ransome & Marles Brg. Co. Ltd. requesting dimensions for a single row roller journal bearing, LRJ.12.9th Sep 1941Box 115 \ 2  scan0628
Letter from Ransome & Marles Bearing Company regarding the supply and design of clutch bearings.6th Oct 1940Box 115 \ 2  scan0629
Letter concerning a modification to clutch fingers to address excessive spinning of an outer ring.17th Oct 1941Box 115 \ 2  scan0630
Payment authorization for a set of Clevite connecting rod bearings and a V.P.2 part.17th Oct 1941Box 115 \ 2  scan0631
Post-war strategy for bearing suppliers to improve pricing through competition.21th Dec 1943Box 115 \ 2  scan0632
Letter from Vandervell Products Ltd. confirming chassis number 57.KU and arranging for work to be completed before the body is fitted.2nd Jul 1937Box 115 \ 3  scan0001
Alterations to the big end bearings for the Wraith and 4 1/4 Litre Bentley models.3rd Jul 1937Box 115 \ 3  scan0002
Letter discussing inconsistent oil consumption results, Le Mans performance, bearing repairs and fitting a new chassis.5th Jul 1937Box 115 \ 3  scan0003
Epidemic of big-end bearing failures on Bentley cars and proposing solutions.5th Jul 1937Box 115 \ 3  scan0004
Epidemic of connecting rod bearing failures in 3 1/2-Litre Bentley cars and the associated repair costs.7th Jul 1937Box 115 \ 3  scan0005
Suggestions for dealing with issues on 3½-litre vehicles, including engine failures and long-term running.7th Jul 1937Box 115 \ 3  scan0006
Analysis of issues and recommended modifications for the 4¼-litre Bentley, including costs.7th Jul 1937Box 115 \ 3  scan0007
Recommendations for engine repairs concerning big end and main bearing failures, and second-hand car certification.7th Jul 1937Box 115 \ 3  scan0008
Proposed depot sheet detailing main bearing replacement and crankshaft lubrication modifications for the 4 1/4 Litre Bentley.6th Jul 1937Box 115 \ 3  scan0009
Procedures for addressing different types of big end failure in engines.3rd Jul 1937Box 115 \ 3  scan0010
Engine big end bearing failures in 3½ and 4¼ Litre Bentley cars, listing failures, mileage, and remarks.3rd Jul 1937Box 115 \ 3  scan0011
Main bearing and big end failures in 3 1/2 litre and 4 1/4 litre cars.3rd Jul 1937Box 115 \ 3  scan0012
Main bearing sinkage issues and estimated repair costs for the 4 1/4 Litre model.3rd Jul 1937Box 115 \ 3  scan0013
The condition of engine bearings for car B.8.G.A. following the Paris trials.6th Jul 1937Box 115 \ 3  scan0014
Standardisation report for Bentley main bearings to address hammering out and engine roughness.25th Jun 1937Box 115 \ 3  scan0015
Production note confirming no extra tool cost is required to introduce a change for the 'L' Series chassis.10th Aug 1939Box 115 \ 3  scan0016
Bentley connecting rod bearing and axle shaft failures.8th Jul 1937Box 115 \ 3  scan0017
Confirming a telephone agreement regarding the cost and supply of new bearings for the 176th chassis in 'K' Series.9th Jul 1937Box 115 \ 3  scan0018
Requesting official orders for work on Wraith tappets and Phantom III & Bentley bearings.12th Jul 1937Box 115 \ 3  scan0019
Changes to the main bearings and crankshaft for the Bentley 'K' Series chassis.12th Jul 1937Box 115 \ 3  scan0020
Issues and potential modifications for Phantom III main and big end bearings.14th Jul 1937Box 115 \ 3  scan0021
Blowholes in A.C.6. connecting rod bearings for the Bentley Chassis 57-KW.15th Jul 1937Box 115 \ 3  scan0022
Invoice details from Hoyt Metal Co. for lining bushes and connecting rod bearings.20th Jul 1937Box 115 \ 3  scan0023
Failures of big end bearings on the 4 1/4-litre engine and the testing of a new, thinner Hall's alloy bearing on the Phantom III and Wraith engines.25th Jul 1937Box 115 \ 3  scan0024
Instructing a change in practice for Bentley connecting rod and main bearings to prevent loosening.28th Jul 1937Box 115 \ 3  scan0025
Requesting a covering order for bearings metalled by the Hoyt Metal Co.2nd Aug 1937Box 115 \ 3  scan0026
Letter from English Racing Automobiles (E.R.A.) regarding the manufacture of engine bearing shells.8th Aug 1937Box 115 \ 3  scan0027
Drawing of a Centre Bearing Shell for a 2000c.c. engine.9th Aug 1937Box 115 \ 3  scan0028
Letter from English Racing Automobiles Ltd. regarding the dispatch of an incorrect print, E/10146, and enclosing the correct print, E/10147.9th Aug 1937Box 115 \ 3  scan0029
Letter from English Racing Automobiles Ltd providing crankshaft and connecting rod dimensions and discussing design details.10th Aug 1937Box 115 \ 3  scan0030
Letter from the Experimental Department regarding the production and supply of connecting rod big end and centre main bearings.11th Aug 1937Box 115 \ 3  scan0031
Instructions on machining and fitting bearing shells, shims, and connecting rods.11th Aug 1937Box 115 \ 3  scan0032
Request to despatch 14 bearing shells to Mr. P. Berthon of E.R.A. Ltd. for experimental testing.11th Aug 1937Box 115 \ 3  scan0033
Letter from English Racing Automobiles Ltd. acknowledging receipt of parts and discussing procedures for finishing shells and bearings.13th Aug 1937Box 115 \ 3  scan0034
Instruction for a billet of AC.6 bearing material to be cast, along with shims, detailing dimensions and heat treatment.18th Aug 1937Box 115 \ 3  scan0035
Requesting an order number for two special bearings in Hall's metal for the E.R.A.Co.20th Aug 1937Box 115 \ 3  scan0036


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