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
Visit to Ransome & Marles regarding the use and testing of self-lubricating ball bearings.27th Apr 1935Box 114 \ 2  scan0139
Cross-section diagram showing an arrangement fitted to a modified Borg & Beck clutch.8th Apr 1935Box 114 \ 2  scan0140
Letter to Messrs. Ransome & Marles Ltd. concerning requirements for high capacity thin race and shield bearings.8th Apr 1935Box 114 \ 2  scan0141
Letter from Ransome & Marles Bearing Co. comparing their products with 'New Departure' bearings.2nd May 1935Box 114 \ 2  scan0142
Letter from Ransome & Marles Bearing Co. discussing bearing capacities, dimensions, and options for various bearings.2nd May 1935Box 114 \ 2  scan0143
Page 3 of a letter from Ransome & Marles Bearing Co. regarding Oilite temperature effects and the Balor variable gear.2nd May 1935Box 114 \ 2  scan0144
Clearance for experimental A.55 Bearing Alloy bearings being fitted to a chassis engine.7th May 1935Box 114 \ 2  scan0145
Provision of A55 Bearing Alloy with liners for a 20-25 HP car.9th May 1935Box 114 \ 2  scan0146
Bearing alloys, a Ford V.8 rear axle, Bentley tappet noise, and steering for the 20/25 model.10th May 1935Box 114 \ 2  scan0147
Customer and experimental experience with lead bronze big end bearings versus white metal bearings.16th May 1935Box 114 \ 2  scan0148
Slow progress of fitting Lead Bronze Big End Bearings and requesting information on other test vehicles.16th May 1935Box 114 \ 2  scan0149
Letter to Ransome & Marles Ltd. concerning the supply and testing of bearings for a clutch.22th May 1935Box 114 \ 2  scan0150
Plan to fit lead bronze bearings to a dozen customer cars to gain experience before standardisation.23th May 1935Box 114 \ 2  scan0151
The trial fitting of lead bronze bearings on customer cars for experience gathering before standardisation.23th May 1935Box 114 \ 2  scan0152
Standardisation of Lead Bronze Bearings for the Bentley Chassis.24th May 1935Box 114 \ 2  scan0153
Instructions to despatch new type con rods and lead bronze bearings for four Bentley chassis in France.28th May 1935Box 114 \ 2  scan0154
Test results for white metal bearings and proposing further tests on alternative high-temperature bearing alloys.29th May 1935Box 114 \ 2  scan0155
Letter requesting the expedited delivery of a 35mm pinion thrust bearing and small pilot bearings.30th May 1935Box 114 \ 2  scan0156
Follow-up memo requesting a reply regarding lead bronze bearings for a Bentley chassis.30th May 1935Box 114 \ 2  scan0157
Deferral of standardising lead bronze bearings for Bentley chassis due to increased aero engine production demands.31th May 1935Box 114 \ 2  scan0158
Letter from a bearing manufacturer regarding test results of 'Oilite' cage bearings versus New Departure bearings and the dispatch of samples.1st Jun 1935Box 114 \ 2  scan0159
Testing and procurement of oil-retaining bearings for a clutch application.3rd Jun 1935Box 114 \ 2  scan0160
Letter from Ransome & Marles Bearing Co. regarding the despatch and design of modified clutch pilot bearings with 'Oilite' cages.4th Jun 1935Box 114 \ 2  scan0161
Page 2 of a letter from Ransome & Marles Bearing Co. regarding special LJ.25 bearings and an enclosed print.4th Jun 1935Box 114 \ 2  scan0162
Specification drawing for an Oillite case ball bearing.4th Jun 1935Box 114 \ 2  scan0163
Letter from the Experimental Department discussing issues with an oilite cage bearing and seeking advice on a proposed solution.6th Jun 1935Box 114 \ 2  scan0164
Request for a drawing of a 35 mm bearing to assign a part number for future orders.6th Jun 1936Box 114 \ 2  scan0165
To Roy regarding bearing modifications and orders from Ransome & Marles.7th Jun 1935Box 114 \ 2  scan0166
Letter from Ransome & Marles Bearing Co. about bearing design, oil retention in an Oilite cage, and leakage tests.7th Jun 1935Box 114 \ 2  scan0167
Second page of a letter from Ransome & Marles Bearing Co., Ltd., awaiting results from a 10,000-mile run.12th Jun 1935Box 114 \ 2  scan0168
Plans for endurance testing of high lead content lead bronze bearings against white metal and cadmium bearings.12th Jun 1935Box 114 \ 2  scan0169
Endurance test report for a 'New Departure' Ball Race, part number 88507.26th Jun 1935Box 114 \ 2  scan0170
Main bearing failures and requesting new sets for testing purposes.10th Jul 1935Box 114 \ 2  scan0171
Correspondence regarding a failed Ransome & Marles rear axle thrust bearing from Bentley Chassis B.127-CW.10th Jul 1935Box 114 \ 2  scan0172
Letter to a bearing company about the failure of a chromium iron cage in a Bentley rear axle thrust bearing.29th Jul 1935Box 114 \ 2  scan0173
Procurement and specifications of special steering gear bearings from British Timken Ltd.15th Aug 1935Box 114 \ 2  scan0174
Letter to British Timken Ltd. regarding blueprints for steering gear and a request for special bearings.15th Aug 1935Box 114 \ 2  scan0175
Issues with lead bronze bearings and requesting tests on Hall's metal as an alternative.26th Aug 1935Box 114 \ 2  scan0176
Letter to Messrs. Ransome & Marles Ltd. regarding a recurring pinion bearing failure and requesting solutions.3rd Sep 1935Box 114 \ 2  scan0177
Urgent order for bearings from British Timken Ltd. for experimental work on Spectre and 20/25 HP projects.5th Sep 1935Box 114 \ 2  scan0178
Specifications for the AC 17 alloy used in bearings for Bentley or 20/25 cars, including composition and heat treatment.9th Sep 1935Box 114 \ 2  scan0179
Letter to a bearing company requesting the addition of oil grooves to special bearings to investigate steel cage failures.12th Sep 1935Box 114 \ 2  scan0180
Letter from a bearing manufacturer regarding the dispatch of sample parts for service evaluation.12th Sep 1935Box 114 \ 2  scan0181
Request for S-L-C steel bar to be forged down to a suitable size for Bentley Bearing Shells.17th Sep 1935Box 114 \ 2  scan0182
Laboratory report on cracked Bentley bearings, linking failure to high carbon steel backs and recommending lower carbon steel.20th Sep 1935Box 114 \ 2  scan0183
Letter from Ransome & Marles Bearing Co. Ltd. regarding the modification and production of bearings.21th Sep 1935Box 114 \ 2  scan0184
Endurance testing of Hall's Metal Bearings compared to lead bronze and white metal alloys.21th Sep 1935Box 114 \ 2  scan0185
Photographic record of engine bearing halves after endurance testing.21th Sep 1935Box 114 \ 2  scan0186
Photograph of twelve upper half big end bearings after a 42-hour endurance test.21th Sep 1935Box 114 \ 2  scan0187
Photograph showing the condition of metal main bearings after an endurance test.21th Sep 1935Box 114 \ 2  scan0188
Photographic record and analysis of B-15 unit big end and main bearings after testing.21th Sep 1935Box 114 \ 2  scan0189
Photograph of an original crankcase after a 34-hour test run at 4,000 rpm.21th Sep 1935Box 114 \ 2  scan0190
Photograph showing an original crankcase after a 34-hour test at 4,000 r.p.m.3rd Oct 1935Box 114 \ 2  scan0191
Letter requesting self-lubricating clutch thrust bearings with oilite cages for a Bentley chassis.3rd Oct 1935Box 114 \ 2  scan0192
Letter from Ransome & Marles Bearing Co. regarding the supply and design of various bearings, including a drawing enclosure.7th Oct 1935Box 114 \ 2  scan0193
Letter from Ransome & Marles Bearing Co., Ltd. seeking comments before arranging for three bearings.7th Oct 1935Box 114 \ 2  scan0194
Drawing of an XLJ 1 3/4 bearing fitted with a special 'Oilite' ball cage, showing dimensional tolerances.8th Jan 1945Box 114 \ 2  scan0195
Letter to a bearing company regarding the design and testing of pinion bearings.8th Oct 1935Box 114 \ 2  scan0196
Letter from Ransome & Marles Bearing Co. discussing Bentley pinion bearing lubrication and an Oilite cage for a clutch throwout.11th Oct 1935Box 114 \ 2  scan0197
Fitting of lead bronze bearings to a Bentley chassis after engine damage.15th Oct 1935Box 114 \ 2  scan0198
Requesting the manufacture of a complete set of big end and main bearings for a Bentley unit.17th Oct 1935Box 114 \ 2  scan0199
Request to fit a dural rod from a car to a crankshaft for tightening-up tests at the Cold Storage Works.24th Oct 1935Box 114 \ 2  scan0200
Letter to Ransome & Marles Bearing Co. Ltd. regarding a 35mm bearing that failed during back axle testing.28th Oct 1935Box 114 \ 2  scan0201
Dispatch of a Pinion Bearing to Messrs Ransome & Marles for investigation.28th Oct 1935Box 114 \ 2  scan0202
Invoice from Ransome & Marles Bearing Co. Ltd. for Double Purpose Bearings, requesting payment authorisation.28th Oct 1935Box 114 \ 2  scan0203
Requesting an official order for Double Purpose Bearings from Messrs. Ransome & Marles Ltd.30th Oct 1935Box 114 \ 2  scan0204
Letter from Ransome & Marles Bearing Co. regarding Clutch Throwout Bearings and the use of 'Oillite' material.30th Oct 1935Box 114 \ 2  scan0205
Letter from Ransome & Marles Bearing Co. about the possibility of using a double purpose bearing.30th Oct 1935Box 114 \ 2  scan0206
Dispatch and fitting of clutch thrust bearings with oillite cages for large bore Bentley units.31th Oct 1935Box 114 \ 2  scan0207
The receipt of bearings for testing and a request for official orders.31th Oct 1935Box 114 \ 2  scan0208
Letter from a bearing manufacturer inquiring about a bearing that has been returned.7th Nov 1935Box 114 \ 2  scan0209
Letter sent from the Experimental Department to The Ransome & Marles Bearing Co. Ltd.11th Nov 1935Box 114 \ 2  scan0210
Endurance test on a Phantom III unit, focusing on marine type big end bearings.11th Nov 1935Box 114 \ 2  scan0211
Endurance test of a Ph.III No.1 unit, detailing a big end bearing failure and performance data.11th Nov 1935Box 114 \ 2  scan0212
Engine operating temperatures, rebuild specifications, and endurance testing progress.11th Nov 1935Box 114 \ 2  scan0213
Laboratory memorandum detailing a modified process to improve adhesion of a new bearing alloy for steel shells, to be used for Bentley bearings.14th Nov 1935Box 114 \ 2  scan0214
Requesting a set of Bentley bearings to be manufactured per an attached specification.18th Nov 1935Box 114 \ 2  scan0215
Letter from Ransome & Marles Bearing Co. regarding the examination of a tested rear axle pinion bearing.19th Nov 1935Box 114 \ 2  scan0216
Letter from Ransome & Marles Bearing Co. Ltd. regarding a request to increase bearing capacity.19th Nov 1935Box 114 \ 2  scan0217
The performance and failure of Hall's Metal Bearings during testing and comparison with white metal bearings.25th Nov 1935Box 114 \ 2  scan0218
The high percentage of scrap and large number of bearings produced to get a set with good adhesion.25th Nov 1935Box 114 \ 2  scan0219
Endurance test report on Hall's metal bearings and modified valve gear for a 3.500' Bore Bentley.22th Nov 1935Box 114 \ 2  scan0220
Inspection report detailing the condition and failure of big end bearings and other engine components.22th Nov 1935Box 114 \ 2  scan0221
Photograph showing the condition of lower bearing halves after a 46-hour endurance test.22th Nov 1935Box 114 \ 2  scan0222
Photograph of lower half bearing shells showing their condition after a 46-hour engine test.22th Nov 1935Box 114 \ 2  scan0223
Photographs of a connecting rod big end bearing and other components after a 46-hour test.22th Nov 1935Box 114 \ 2  scan0224
Photograph showing the condition of a ball bearing after a 46-hour endurance test.22th Nov 1935Box 114 \ 2  scan0225
Photograph showing the condition of Hall's Metal big end bearings after a 13,000-mile test in France.22th Nov 1935Box 114 \ 2  scan0226
Photograph showing the condition of Hall's Metal main bearings after 13,000 miles of use in France.26th Nov 1935Box 114 \ 2  scan0227
Request to test a Solid Hall's Metal Bearing at the Cold Storage Works by fitting it to a crank pin assembly.26th Nov 1935Box 114 \ 2  scan0228
Comparative tests between strap type and marine type connecting rods with whitemetal bearings for the Phantom III.27th Nov 1935Box 114 \ 2  scan0229
Endurance tests of whitemetal main journal bearings following modifications to the lubrication system.27th Nov 1935Box 114 \ 2  scan0230
Photograph of Phantom III No.1 Unit whitemetal main bearings after a 33-hour endurance test.27th Nov 1935Box 114 \ 2  scan0231
Photograph showing Phantom III No.1 Unit whitemetal bearings for strap type rods after an endurance test.27th Nov 1935Box 114 \ 2  scan0232
Photograph of worn whitemetal bearings from a Phantom III engine unit after an endurance test.21th Aug 1935Box 114 \ 2  scan0233
Photograph of whitemetal main journal lower halves after a 20-hour endurance test.21th Aug 1935Box 114 \ 2  scan0234
Photograph showing Phantom III strap type rod big ends after completing 6,799 miles of testing.21th Aug 1935Box 114 \ 2  scan0235
Photograph of Phantom III strap type rod big ends (white metal) after a mileage test.21th Aug 1935Box 114 \ 2  scan0236
Photograph of Phantom III marine type connecting rods with whitemetal bearings after a 20-hour endurance test.21th Aug 1935Box 114 \ 2  scan0237
Photograph of Phantom III marine type rod whitemetal bearings after a 20-hour endurance test.28th Nov 1935Box 114 \ 2  scan0238


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