| Description | Date | Identifier | |
| Visit to Ransome & Marles regarding the use and testing of self-lubricating ball bearings. | 27th Apr 1935 | Box 114 \ 2 scan0139 | |
| Cross-section diagram showing an arrangement fitted to a modified Borg & Beck clutch. | 8th Apr 1935 | Box 114 \ 2 scan0140 | |
| Letter to Messrs. Ransome & Marles Ltd. concerning requirements for high capacity thin race and shield bearings. | 8th Apr 1935 | Box 114 \ 2 scan0141 | |
| Letter from Ransome & Marles Bearing Co. comparing their products with 'New Departure' bearings. | 2nd May 1935 | Box 114 \ 2 scan0142 | |
| Letter from Ransome & Marles Bearing Co. discussing bearing capacities, dimensions, and options for various bearings. | 2nd May 1935 | Box 114 \ 2 scan0143 | |
| Page 3 of a letter from Ransome & Marles Bearing Co. regarding Oilite temperature effects and the Balor variable gear. | 2nd May 1935 | Box 114 \ 2 scan0144 | |
| Clearance for experimental A.55 Bearing Alloy bearings being fitted to a chassis engine. | 7th May 1935 | Box 114 \ 2 scan0145 | |
| Provision of A55 Bearing Alloy with liners for a 20-25 HP car. | 9th May 1935 | Box 114 \ 2 scan0146 | |
| Bearing alloys, a Ford V.8 rear axle, Bentley tappet noise, and steering for the 20/25 model. | 10th May 1935 | Box 114 \ 2 scan0147 | |
| Customer and experimental experience with lead bronze big end bearings versus white metal bearings. | 16th May 1935 | Box 114 \ 2 scan0148 | |
| Slow progress of fitting Lead Bronze Big End Bearings and requesting information on other test vehicles. | 16th May 1935 | Box 114 \ 2 scan0149 | |
| Letter to Ransome & Marles Ltd. concerning the supply and testing of bearings for a clutch. | 22th May 1935 | Box 114 \ 2 scan0150 | |
| Plan to fit lead bronze bearings to a dozen customer cars to gain experience before standardisation. | 23th May 1935 | Box 114 \ 2 scan0151 | |
| The trial fitting of lead bronze bearings on customer cars for experience gathering before standardisation. | 23th May 1935 | Box 114 \ 2 scan0152 | |
| Standardisation of Lead Bronze Bearings for the Bentley Chassis. | 24th May 1935 | Box 114 \ 2 scan0153 | |
| Instructions to despatch new type con rods and lead bronze bearings for four Bentley chassis in France. | 28th May 1935 | Box 114 \ 2 scan0154 | |
| Test results for white metal bearings and proposing further tests on alternative high-temperature bearing alloys. | 29th May 1935 | Box 114 \ 2 scan0155 | |
| Letter requesting the expedited delivery of a 35mm pinion thrust bearing and small pilot bearings. | 30th May 1935 | Box 114 \ 2 scan0156 | |
| Follow-up memo requesting a reply regarding lead bronze bearings for a Bentley chassis. | 30th May 1935 | Box 114 \ 2 scan0157 | |
| Deferral of standardising lead bronze bearings for Bentley chassis due to increased aero engine production demands. | 31th May 1935 | Box 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 1935 | Box 114 \ 2 scan0159 | |
| Testing and procurement of oil-retaining bearings for a clutch application. | 3rd Jun 1935 | Box 114 \ 2 scan0160 | |
| Letter from Ransome & Marles Bearing Co. regarding the despatch and design of modified clutch pilot bearings with 'Oilite' cages. | 4th Jun 1935 | Box 114 \ 2 scan0161 | |
| Page 2 of a letter from Ransome & Marles Bearing Co. regarding special LJ.25 bearings and an enclosed print. | 4th Jun 1935 | Box 114 \ 2 scan0162 | |
| Specification drawing for an Oillite case ball bearing. | 4th Jun 1935 | Box 114 \ 2 scan0163 | |
| Letter from the Experimental Department discussing issues with an oilite cage bearing and seeking advice on a proposed solution. | 6th Jun 1935 | Box 114 \ 2 scan0164 | |
| Request for a drawing of a 35 mm bearing to assign a part number for future orders. | 6th Jun 1936 | Box 114 \ 2 scan0165 | |
| To Roy regarding bearing modifications and orders from Ransome & Marles. | 7th Jun 1935 | Box 114 \ 2 scan0166 | |
| Letter from Ransome & Marles Bearing Co. about bearing design, oil retention in an Oilite cage, and leakage tests. | 7th Jun 1935 | Box 114 \ 2 scan0167 | |
| Second page of a letter from Ransome & Marles Bearing Co., Ltd., awaiting results from a 10,000-mile run. | 12th Jun 1935 | Box 114 \ 2 scan0168 | |
| Plans for endurance testing of high lead content lead bronze bearings against white metal and cadmium bearings. | 12th Jun 1935 | Box 114 \ 2 scan0169 | |
| Endurance test report for a 'New Departure' Ball Race, part number 88507. | 26th Jun 1935 | Box 114 \ 2 scan0170 | |
| Main bearing failures and requesting new sets for testing purposes. | 10th Jul 1935 | Box 114 \ 2 scan0171 | |
| Correspondence regarding a failed Ransome & Marles rear axle thrust bearing from Bentley Chassis B.127-CW. | 10th Jul 1935 | Box 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 1935 | Box 114 \ 2 scan0173 | |
| Procurement and specifications of special steering gear bearings from British Timken Ltd. | 15th Aug 1935 | Box 114 \ 2 scan0174 | |
| Letter to British Timken Ltd. regarding blueprints for steering gear and a request for special bearings. | 15th Aug 1935 | Box 114 \ 2 scan0175 | |
| Issues with lead bronze bearings and requesting tests on Hall's metal as an alternative. | 26th Aug 1935 | Box 114 \ 2 scan0176 | |
| Letter to Messrs. Ransome & Marles Ltd. regarding a recurring pinion bearing failure and requesting solutions. | 3rd Sep 1935 | Box 114 \ 2 scan0177 | |
| Urgent order for bearings from British Timken Ltd. for experimental work on Spectre and 20/25 HP projects. | 5th Sep 1935 | Box 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 1935 | Box 114 \ 2 scan0179 | |
| Letter to a bearing company requesting the addition of oil grooves to special bearings to investigate steel cage failures. | 12th Sep 1935 | Box 114 \ 2 scan0180 | |
| Letter from a bearing manufacturer regarding the dispatch of sample parts for service evaluation. | 12th Sep 1935 | Box 114 \ 2 scan0181 | |
| Request for S-L-C steel bar to be forged down to a suitable size for Bentley Bearing Shells. | 17th Sep 1935 | Box 114 \ 2 scan0182 | |
| Laboratory report on cracked Bentley bearings, linking failure to high carbon steel backs and recommending lower carbon steel. | 20th Sep 1935 | Box 114 \ 2 scan0183 | |
| Letter from Ransome & Marles Bearing Co. Ltd. regarding the modification and production of bearings. | 21th Sep 1935 | Box 114 \ 2 scan0184 | |
| Endurance testing of Hall's Metal Bearings compared to lead bronze and white metal alloys. | 21th Sep 1935 | Box 114 \ 2 scan0185 | |
| Photographic record of engine bearing halves after endurance testing. | 21th Sep 1935 | Box 114 \ 2 scan0186 | |
| Photograph of twelve upper half big end bearings after a 42-hour endurance test. | 21th Sep 1935 | Box 114 \ 2 scan0187 | |
| Photograph showing the condition of metal main bearings after an endurance test. | 21th Sep 1935 | Box 114 \ 2 scan0188 | |
| Photographic record and analysis of B-15 unit big end and main bearings after testing. | 21th Sep 1935 | Box 114 \ 2 scan0189 | |
| Photograph of an original crankcase after a 34-hour test run at 4,000 rpm. | 21th Sep 1935 | Box 114 \ 2 scan0190 | |
| Photograph showing an original crankcase after a 34-hour test at 4,000 r.p.m. | 3rd Oct 1935 | Box 114 \ 2 scan0191 | |
| Letter requesting self-lubricating clutch thrust bearings with oilite cages for a Bentley chassis. | 3rd Oct 1935 | Box 114 \ 2 scan0192 | |
| Letter from Ransome & Marles Bearing Co. regarding the supply and design of various bearings, including a drawing enclosure. | 7th Oct 1935 | Box 114 \ 2 scan0193 | |
| Letter from Ransome & Marles Bearing Co., Ltd. seeking comments before arranging for three bearings. | 7th Oct 1935 | Box 114 \ 2 scan0194 | |
| Drawing of an XLJ 1 3/4 bearing fitted with a special 'Oilite' ball cage, showing dimensional tolerances. | 8th Jan 1945 | Box 114 \ 2 scan0195 | |
| Letter to a bearing company regarding the design and testing of pinion bearings. | 8th Oct 1935 | Box 114 \ 2 scan0196 | |
| Letter from Ransome & Marles Bearing Co. discussing Bentley pinion bearing lubrication and an Oilite cage for a clutch throwout. | 11th Oct 1935 | Box 114 \ 2 scan0197 | |
| Fitting of lead bronze bearings to a Bentley chassis after engine damage. | 15th Oct 1935 | Box 114 \ 2 scan0198 | |
| Requesting the manufacture of a complete set of big end and main bearings for a Bentley unit. | 17th Oct 1935 | Box 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 1935 | Box 114 \ 2 scan0200 | |
| Letter to Ransome & Marles Bearing Co. Ltd. regarding a 35mm bearing that failed during back axle testing. | 28th Oct 1935 | Box 114 \ 2 scan0201 | |
| Dispatch of a Pinion Bearing to Messrs Ransome & Marles for investigation. | 28th Oct 1935 | Box 114 \ 2 scan0202 | |
| Invoice from Ransome & Marles Bearing Co. Ltd. for Double Purpose Bearings, requesting payment authorisation. | 28th Oct 1935 | Box 114 \ 2 scan0203 | |
| Requesting an official order for Double Purpose Bearings from Messrs. Ransome & Marles Ltd. | 30th Oct 1935 | Box 114 \ 2 scan0204 | |
| Letter from Ransome & Marles Bearing Co. regarding Clutch Throwout Bearings and the use of 'Oillite' material. | 30th Oct 1935 | Box 114 \ 2 scan0205 | |
| Letter from Ransome & Marles Bearing Co. about the possibility of using a double purpose bearing. | 30th Oct 1935 | Box 114 \ 2 scan0206 | |
| Dispatch and fitting of clutch thrust bearings with oillite cages for large bore Bentley units. | 31th Oct 1935 | Box 114 \ 2 scan0207 | |
| The receipt of bearings for testing and a request for official orders. | 31th Oct 1935 | Box 114 \ 2 scan0208 | |
| Letter from a bearing manufacturer inquiring about a bearing that has been returned. | 7th Nov 1935 | Box 114 \ 2 scan0209 | |
| Letter sent from the Experimental Department to The Ransome & Marles Bearing Co. Ltd. | 11th Nov 1935 | Box 114 \ 2 scan0210 | |
| Endurance test on a Phantom III unit, focusing on marine type big end bearings. | 11th Nov 1935 | Box 114 \ 2 scan0211 | |
| Endurance test of a Ph.III No.1 unit, detailing a big end bearing failure and performance data. | 11th Nov 1935 | Box 114 \ 2 scan0212 | |
| Engine operating temperatures, rebuild specifications, and endurance testing progress. | 11th Nov 1935 | Box 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 1935 | Box 114 \ 2 scan0214 | |
| Requesting a set of Bentley bearings to be manufactured per an attached specification. | 18th Nov 1935 | Box 114 \ 2 scan0215 | |
| Letter from Ransome & Marles Bearing Co. regarding the examination of a tested rear axle pinion bearing. | 19th Nov 1935 | Box 114 \ 2 scan0216 | |
| Letter from Ransome & Marles Bearing Co. Ltd. regarding a request to increase bearing capacity. | 19th Nov 1935 | Box 114 \ 2 scan0217 | |
| The performance and failure of Hall's Metal Bearings during testing and comparison with white metal bearings. | 25th Nov 1935 | Box 114 \ 2 scan0218 | |
| The high percentage of scrap and large number of bearings produced to get a set with good adhesion. | 25th Nov 1935 | Box 114 \ 2 scan0219 | |
| Endurance test report on Hall's metal bearings and modified valve gear for a 3.500' Bore Bentley. | 22th Nov 1935 | Box 114 \ 2 scan0220 | |
| Inspection report detailing the condition and failure of big end bearings and other engine components. | 22th Nov 1935 | Box 114 \ 2 scan0221 | |
| Photograph showing the condition of lower bearing halves after a 46-hour endurance test. | 22th Nov 1935 | Box 114 \ 2 scan0222 | |
| Photograph of lower half bearing shells showing their condition after a 46-hour engine test. | 22th Nov 1935 | Box 114 \ 2 scan0223 | |
| Photographs of a connecting rod big end bearing and other components after a 46-hour test. | 22th Nov 1935 | Box 114 \ 2 scan0224 | |
| Photograph showing the condition of a ball bearing after a 46-hour endurance test. | 22th Nov 1935 | Box 114 \ 2 scan0225 | |
| Photograph showing the condition of Hall's Metal big end bearings after a 13,000-mile test in France. | 22th Nov 1935 | Box 114 \ 2 scan0226 | |
| Photograph showing the condition of Hall's Metal main bearings after 13,000 miles of use in France. | 26th Nov 1935 | Box 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 1935 | Box 114 \ 2 scan0228 | |
| Comparative tests between strap type and marine type connecting rods with whitemetal bearings for the Phantom III. | 27th Nov 1935 | Box 114 \ 2 scan0229 | |
| Endurance tests of whitemetal main journal bearings following modifications to the lubrication system. | 27th Nov 1935 | Box 114 \ 2 scan0230 | |
| Photograph of Phantom III No.1 Unit whitemetal main bearings after a 33-hour endurance test. | 27th Nov 1935 | Box 114 \ 2 scan0231 | |
| Photograph showing Phantom III No.1 Unit whitemetal bearings for strap type rods after an endurance test. | 27th Nov 1935 | Box 114 \ 2 scan0232 | |
| Photograph of worn whitemetal bearings from a Phantom III engine unit after an endurance test. | 21th Aug 1935 | Box 114 \ 2 scan0233 | |
| Photograph of whitemetal main journal lower halves after a 20-hour endurance test. | 21th Aug 1935 | Box 114 \ 2 scan0234 | |
| Photograph showing Phantom III strap type rod big ends after completing 6,799 miles of testing. | 21th Aug 1935 | Box 114 \ 2 scan0235 | |
| Photograph of Phantom III strap type rod big ends (white metal) after a mileage test. | 21th Aug 1935 | Box 114 \ 2 scan0236 | |
| Photograph of Phantom III marine type connecting rods with whitemetal bearings after a 20-hour endurance test. | 21th Aug 1935 | Box 114 \ 2 scan0237 | |
| Photograph of Phantom III marine type rod whitemetal bearings after a 20-hour endurance test. | 28th Nov 1935 | Box 114 \ 2 scan0238 | |
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