Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | To Mr Royce discussing potential causes of failures in ball bearings. | ||
| View original record | X527 1st June 1911 TBB1/D1611 Mr Royce. Ball Bearings. I have discussed this matter with Mr Nadin and he tells me that most of the failures have been with the pressed brass cages (pieces of the cage… | ||
| Scan002 | Improving ball bearing cage design to prevent wear and issues under no-load conditions. | ||
| View original record | (2) and the cast bronze cages are too slipshod and can easily be deformed, and I think a [handwritten: cage] /such as used to be fitted to [handwritten: these] Hoffmanns' (solid bronze and… | ||
| Scan003 | Improving ball bearing reliability by fitting rigid cages to prevent foreign matter contamination. | ||
| View original record | (3) gauze or the felt washer. I attach sketches showing what I mean. I think that if we fitted rigid cages and effectually prevented foreign matter from getting in the races we should have no more… | ||
| Scan004 | To Mr Johnson discussing the replacement of D.W.M. ball bearings following an enquiry about improvements. | ||
| View original record | E.R. 2354 (10011) (W 517. 26.5.11) G. 1695. 27th June 1911 AD6/D27611 Mr Johnson Ball Bearings. With reference to your enquiry - Have we improved the ball races? On May 23rd. in accordance with Mr… | ||
| Scan005 | The urgent replacement of faulty ball bearings with sheet metal cages with new cast cage bearings. | ||
| View original record | (2) by Mrs Royce when Mr Royce was taken ill, and has not been attended to by him. I understand, however, that as the matter was so urgent we had already taken it up, and the ball bearings with cast… | ||
| Scan006 | Technical paper on the design, load distribution, and stress analysis of ball and roller bearings. | ||
| View original record | August 23, 1911 THE MOTOR TRADER COM 457 The Elements of Ball and Roller Bearing Design. By Arnold C. Koenig. Distribution of Load Stresses. In any ball bearing that is under load only the balls in… | ||
| Scan007 | Technical document detailing the formulas and principles for ball bearing design. | ||
| View original record | THE MOTOR TRADER August 23, 1911 presses of varying intensity, since each ball as it passes around the semi-circle which represents the loaded half is subjected to a variation of direct pressure which… | ||
| Scan008 | Meeting minutes from late 1911 discussing issues with broken, faulty, and replaced ball-bearings. | ||
| View original record | BALL-BEARINGS. PAGE 1. Z 547 62nd. Meeting October 23rd. 1911. Cuzman - Broken ball bearing. Mr Wormald submitted a broken ball bearing which had been taken from Mr Guzman's car. The Committee… | ||
| Scan009 | Meeting minutes from late 1911 discussing the replacement of faulty ball bearings from various suppliers. | ||
| View original record | Z 547 PAGE 2. Committee that a number of these had been changed, and he was seeing if the rest could be used up in hubs or other parts, excepting the axle. 75th Meeting November 15th. 1911. Re Guzman… | ||
| Scan010 | Committee discusses a failed front wheel bearing, its cause, and the cost of replacement for a customer. | ||
| View original record | PAGE 3. had failed. He also submitted the broken balls and the races. The letter stated that the failure was discovered on dismantling the front wheel, owing to a noise complained of by the owner. The… | ||
| Scan011 | Instructions regarding the replacement of pressed cage bearings with cast bronze cage bearings for Chassis 1498. | ||
| View original record | Z 547 October 27th 1911 N4/L271011 Ref 66(4) Re Chassis 1498 Mr. De Looze 27-10-11 With reference to the above, Mr.Haldenby would receive instructions some time ago to the effect that all bearings… | ||
| Scan012 | Departmental memo requesting an examination of a customer's front road wheel ball bearing for a guarantee claim. | ||
| View original record | R.R. 475 (50 H) (X 65f. 20.2.12) E.P. 1297. X547 Re J.G.Fowler, Esq., Chassis 1545. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL… | ||
| Scan013 | Broken front wheel ball bearing from car 1545, seeking an opinion on the cause and liability for replacement. | ||
| View original record | R.R 2354 (100m) (X 200. 8.4.12) G 2368. X547 5001 Mr. J.G.Fowler's Car No. 1545. AW4/C4412. Mr. Barrington. 4.4.12. I send herewith broken front road wheel ball bearing returned by Mr. Fowler. I shall… | ||
| Scan014 | The causes of failure in ball bearings. | ||
| View original record | Causes of Failure in Ball Bearings x521 THE AUTOCAR, June 9th, 1912 Extortions | ||
| Scan015 | Technical discussion on the causes of failure in ball bearings used in motor car wheels. | ||
| View original record | 634 THE AUTOCAR, April 6th, 1912. Causes of Failure in Ball Bearings. A contribution by Mr. John V. Pugh to the Discussion on the Paper read by Mr. G. F. Barrett on the above subject before the… | ||
| Scan016 | Page from 'The Autocar' magazine discussing the performance and design of different types of ball bearings. | ||
| View original record | THE AUTOCAR, April 6th, 1912. 635 away the size of the journal bearing for a given diameter of stub end. The form of thrust bearing employed is open to two objections, urged by the author, against the… | ||
| Scan017 | Page from 'THE AUTOCAR' magazine discussing vehicle bearings, hubs, and commercial vehicle use. | ||
| View original record | 636 THE AUTOCAR April 6th, 1912. is being continually experienced with bearings shielded only in this way. I quite agree that the arrangement for excluding water shown in fig. 2 with the canister lid,… | ||
| Scan018 | Notes on the crushing strength of ball bearings and the influence of rotational speed on carrying capacity. | ||
| View original record | W. De. C. Crushing Strength of Ball Bearings. Some notes in a recent number of a mechanical contemporary go to show that the crushing strength of balls frequently differs greatly from what is stated… | ||
| Scan019 | Instructing the Drawing Office to alter drawings for the end play in gearbox ball bearings as approved by Mr Royce. | ||
| View original record | R.R. 475 (100 H) (X 967. 22.5.12) E.P 1868. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| Scan020 | The endways clearance for ball bearings in a gearbox. | ||
| View original record | Z 547 Re location of ball bearings in gear box, Mr Bailey 19-9-12 TBB6/H19912. Gear Box Dept. With reference to the endways clearance of those ball bearings in the gear box which locate the position… | ||
| Scan021 | Special parts, specifically the gearbox with Hoffmann Ball Bearings, fitted to chassis 21COE. | ||
| View original record | TBB1C/L41212 December 4th 1912 Report on Special Parts fitted to Chassis 21COE. 10, GEAR BOX :- This is fitted with Hoffmann Ball Bearings, and compared with the present average the gears and the side… | ||
| Scan022 | Destructive testing of Hoffmann ball bearings as requested by Mr Royce. | ||
| View original record | Wor/Mcr6/L26614. Re Hoffmann Ball Bearings. X. 515 J. 26-6-14. R. Na. Mr Royce in his memo R7/P 28.5.14 requested a test carrying out on several ball bearings to be tested to destruction with end… | ||
| Scan023 | End thrust tests of ball bearings from three different makes. | ||
| View original record | From Exp. Dept. Copies for: J. R. Na. Wor/Hy12/L26614. June 26th. 1914. Report on End Thrust Tests of Ball Bearings. X.515 These tests are being carried out to obtain some idea what end pressure the… | ||
| Scan024 | Test report on a bearing, detailing the condition of the balls and race after a run. | ||
| View original record | Wot/Hy12/L26614. Sheet. 2 this run but was still running freely. It was removed and taken to pieces. Two of the balls were slightly scaled and the inner ball race was scaled slightly at the point… | ||
| Scan025 | Hand-drawn diagram of a test rig for measuring spring characteristics. | ||
| View original record | Fixed Beam Weighing Machine Spring pivoted here Ball Thrust Bearing Hub Road Wheel Pulley Special shaft carrying wheel bearings. | ||
| Scan026 | End thrust tests of ball bearings. | ||
| View original record | From Exp. Dept. Copies for: J. R. By. Hs. REPORT ON END THRUST TESTS OF BALL BEARINGS. Further to my reports Wor/A1y12/L26614, Wor/A1y9/L29614 and Wor/A1y11/B3714. I have now repeated the tests on the… | ||
| Scan027 | The performance and failure analysis of different ball bearings after a series of tests. | ||
| View original record | Wor/Hy12/L20714. Sheet 2. ran very hot and noisy and finally cracked up altogether. Both races were badly torn up and chipped and the balls were also badly chipped. In all the six tests which have… | ||
| Scan028 | The results of an end thrust test for different types of ball bearings. | ||
| View original record | COPY. RS RE/P 24. 7. 14. To Hy. from R. Copy to J. Copy to Wor. Copy to By. Re End Thrust Test of Ball Bearings. I thank you for your report, and it seems there is not doubt of the result, and we are… | ||
| Scan029 | Letter from Hoffman Manufacturing about their refusal to provide information on special aero ball bearings. | ||
| View original record | H 810 both filed and Listed Re Ball Bearings R. 24-4-10. Dy 12/P/34410 Newill, please receive copy of letter of the 20th-10 from The Hoffman Manufacturing Company Inc, with reference to special aero… | ||
| Scan030 | Quality, sourcing, and potential in-house manufacturing of ball bearings for gearboxes. | ||
| View original record | To Na. from R. Copy to J. " " Wor. C O P Y. COPY. El6/IB15515. May 15th. 1915. OC041. Re Ball Bearings. It is conclusive that we are obliged to fit the best ball bearings we can obtain, on the cars. I… | ||
| Scan031 | The requirement for one or two more race grinders for the plant. | ||
| View original record | To Na. from R. 2. COPY. R16/IB15515. [Stamp]: 29.8.38 variety of our plant to perform this work, but we should require perhaps one or two more race grinders. R. [Watermark]: MADE IN ENGLAND CROXLEY… | ||
| Scan032 | The correct type of Hoffmann front wheel ball bearings to be used, either with or without entrance grooves. | ||
| View original record | To EP. from Bn. c. to Wr. [crossed out] c. to By. c. to Hs. Bn13/W161019. RE FRONT WHEEL BALL BEARINGS. You pointed out to me that the front wheels were being fitted with Hoffmann Ball Bearings of the… | ||
| Scan033 | Re-use of 'no-entering slot' type bearings for the front wheel and hub. | ||
| View original record | R.R. 235a (500 T) (S.D. 406. 26-4-17.) Bm. 2/156/13. X515 BY8/P18.10.19. EN. From EY. EP. Hs. WOr. CHASSIS - FRONT WHEEL & HUB. RE USE OF "NO-ENTERING SLOT" TYPE OF BEARING FOR HOFFMANN No.335 SIZE.… | ||
| Scan034 | Continued memorandum discussing a ruling on the use of an entering slot type of bearing in cars. | ||
| View original record | R.R. 235 s (200 T) (S.F. 673, 22-5-19) G. 2376 BY8/P18.10.19. contd. - 2 - does let us down we should be content with a ruling to turn out no more cars with the entering slot type of bearing. BY. | ||
| Scan035 | Reuse of 'No-entering Slot' type bearings for the chassis front wheel and hub. | ||
| View original record | To BY. from Wor. c. to EH. c. to Hs. Copy. X547 a 97 Wor20/M20.10.19. BY8/P18.10.19. CHASSIS - FRONT WHEEL & HUB. Re use of "No-entering Slot" Type of Bearing for Hoffmann No. 335 size. I am very… | ||
| Scan036 | Letter from British Timken Limited to W. Hives Esq. of Rolls-Royce's Experimental Department regarding the application of Timken Roller Bearings to front wheels. | ||
| View original record | X.4282 TIMKEN BEARING HOME AGENCY DEPARTMENT ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY WORKS: WARD END, BIRMINGHAM. CODES: WESTERN UNION. A.B.C. 5TH EDITION. BENTLEYS AND LIEBERS 5 LETTER.… | ||
| Scan037 | Cover of a primer booklet for Timken bearings. | ||
| View original record | A PRIMER OF TIMKEN BEARINGS | ||
| Scan038 | Letter to British Timken Limited regarding the arrangement of front hubs and the use of their bearings. | ||
| View original record | R.R. 228a (100 T) (S. H. 798. 10-12-20) G. 1947 X.425R HS2/LG. HS 10th. Feb. 1921. British Timken Limited., Ward End, Birmingham. Dear Sirs, With reference to your letter dated Feb. 1st. Ref:- RFH/LM.… | ||
| Scan039 | Use of a Chain Roller Bearing Co. bearing for the back axle pinion of a Goshawk I or II. | ||
| View original record | X.4282 To HS from DA. DA7/CB21-2-21. The attached roller bearing, made by the Chain Roller Bearing Co., will fit the back axle pinion bearing of either Goshawk I or Goshawk II. We think it might be… | ||
| Scan040 | Use of Hyatt roller bearings versus plain bearings in gearboxes. | ||
| View original record | Hs. from R. c. to CJ. X4282 R4/G4.10.21. X.4282 - RE HYATT ROLLER BEARINGS. With reference to the Hyatt Roller Bearing in the gear box, we find that this is so universally used by the Americans and… | ||
| Scan041 | Dynamometer testing of rear foot and hand brakes, noting failures and suggesting design changes. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to EY. c. to EP. c. to Wor. X4282 Hsl/LGS.8.10.21. GOSHAWK 11. X.4259. X.4288 X.4253 REAR BRAKES. We have tested the rear brakes of this car on the… | ||
| Scan042 | Testing a noisy Hyatt Roller Bearing and the policy for modifying parts based on successful practices. | ||
| View original record | Contd:- -2- Hsl/LGS.10.21. ------------ Hyatt Roller Bearing. We tested the Hyatt Roller Bearing in the box by itself driving the shafts by means of a belt. There was no doubt about the noise coming… | ||
| Scan043 | Suitability of Michell Thrust Bearings for high-speed applications on a chassis. | ||
| View original record | X547 To BY. from R. c. to CJ. c. to hs. c. to E c. to Da. c. to EP. R2/G27.10.21. X.4150 - RE MICHELL THRUST BEARINGS. X.547. With reference to your memo. BY5/P25.10.21, I quite agree that these… | ||
| Scan044 | Switch from inch to metric-sized ball bearings for American production. | ||
| View original record | To CJ. from R. c. to BJ. c. to Wor. c. to Hs. c. to BY. c. to R.R. of America, Inc. for the attention of CY. " " " Mr. Belnap.) X547 R8/G23.11.21. Re. BALL BEARINGS - U.S.A. - (CJ/PY25/D9.11.21.)… | ||
| Scan045 | The difficulty of avoiding inch dimensions in designs despite a move towards metric standards. | ||
| View original record | contd:- -2- R8/G23.11.21. ------------- shall in future only use those of metric dimensions, but considering our English standard list includes those of inch dimensions, it may be difficult to avoid… | ||
| Scan046 | Letter from the American Bronze Corporation to the Society of Automotive Engineers regarding enclosed data sheets on plain bearings. | ||
| View original record | x547 AMERICAN BRONZE CORPORATION BERWYN PENNSYLVANIA GEORGE D. PORTER, PRESIDENT MATTHEW C. DITTMANN, VICE PRESIDENT & GENERAL MANAGER EDWIN G. ANDERSON, SECRETARY CHARLES H. BAKER, ASST SECRETARY &… | ||
| Scan047 | Letter from The New Departure Manufacturing Co. announcing the establishment of a direct branch in London. | ||
| View original record | X5472 DE WITT PAGE, PRESIDENT. F. G. HUGHES, VICE-PRESIDENT. L. G. SIGOURNEY, SECRETARY. WM. E. WIGHTMAN, TREASURER. THE NEW DEPARTURE MANUFACTURING Co. BRISTOL, CONN., U.S.A. CABLE ADDRESS DEPARTURE,… | ||
| Scan048 | Trial of a new, cheaper, and better Ball Bearing Grease from a different supplier. | ||
| View original record | Mr. Roscow. [REDACTED] Hs. X547 SPT/AEM7/EMM. 21.8.23. We have received a trial cut of Ball Bearing Grease from Messrs. J.S. Morris & Son, Manchester. From tests made in the laboratory this appears to… | ||
| Scan049 | Breakup of a ball bearing supplier monopoly and the subsequent sourcing and pricing strategy. | ||
| View original record | X547 B.Y. from ROY. c. to Hs. ROY7/MG26.8.24. Ball Bearings The English Ball Bearing Ring is broken at last, the Skefko Company, of Luton, I understand, being the first to break away. Hoffmann's… | ||
| Scan050 | The performance of special deep groove ball bearings, No. 4747, in the 20 HP clutch withdrawal mechanism. | ||
| View original record | Hs. X575 BY3/H 27.5.25. We never seem to have heard anything about the three special deep groove ball bearings, No. 4747, which were fitted into the clutch withdrawal mechanism of the 20 HP. The… | ||
| Scan051 | Letter from The Hoffman Manufacturing Co. regarding a new design of Ball Journal Cage using milled slots instead of countersunk rivets. | ||
| View original record | COPY. The Hoffman Manufacturing Co. Ltd., CHELMSFORD. TWC/F. 17th April, 1925. Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, FOR THE ATTENTION OF MR. R.W. HARVEY BAILEY. In connection with our Ball… | ||
| Scan052 | Arranging for the testing of Hoffman Ball Bearings on an experimental car. | ||
| View original record | To Hs. X51S BY/HM3/ML2.7.25. RE BALL BEARING. We are sending you herewith 3 Hoffman Ball Bearings - Nos. 4566, 4873 and 4544 which have been submitted to us by the Hoffman Co. as per attached copy of… | ||
| Scan053 | The decision to use high melting-point grease instead of oil for hub lubrication after a conversation with the Hoffmann people. | ||
| View original record | x575 BY. Mr... [crossed out] Mr. H... [crossed out] Mr. P... [crossed out] c. Hs. BY6/H. 17.3.27. ------------ As a result of our conversation with the Hoffmann people, it is definitely decided that… | ||
| Scan054 | Report concerning the failure of a Bevel Thrust Bearing on chassis 10.G.III after 10,000 miles. | ||
| View original record | To EY. from RHC. Cc Hs. Cc BM/ec. X515 RE BEVEL THRUST BEARING Chassis 10.G.III. is fitted with 10/47 ratio bevels. The pinion bearing Hoff: No.5153, which takes the Thrust, developed rather an… | ||
| Scan055 | Proposed modification to the rear axle centre casing, specifically regarding bearings and lightening the differential cage. | ||
| View original record | BY. from DA. c. to BJ. Hs. X515 DAL/M12.10.27. EAC.14. BACK AXLE. X.3807 X.7350 X.515 Herewith we send N.sch.2481 shewing the proposed modification to the inside of the rear axle centre casing. Since… | ||
| Scan056 | Letter to Mr. F.H. Royce regarding stainless steel ball bearings designed for running under water. | ||
| View original record | Handwritten: Mr. Hives Ref from RR V547 Stamped: POST RECEIVED Typed: OYS.R.102227 October 22nd, 1927. Mr. F.H. Royce, Rolls Royce Ltd., London, England. (Copy for Mr. R.W.H. Bailey) ( " " Mr. E.W.… | ||
| Scan057 | Trial of a hypoid axle with a 1' offset and the necessary adaptations for a New Departure bearing. | ||
| View original record | BY. from DA. c. to BJ. Hs. 4547 DAL/M14.1.28. HYPOID AXLE 1" OFFSET. X.2066 X.3807 X.547 We understand that you are erecting the hypoid axle with 1" offset for trial immediately. In view of HS' report… | ||
| Scan058 | Choice between Schatz and New Departure bearings with six suggestions for design modification. | ||
| View original record | DA. from R. c. to BJ. Wor. BY. Hs. 4547 RL/M14.2.28. EAC.10 43807 Re. N.sch.2537, from the experience mentioned it certainly suggests that Schatz bearing is treacherous but I understood that there was… | ||
| Scan059 | Technical note on bearings, oil retention, water exclusion, and a suggestive sketch. | ||
| View original record | contd :- -2- some form, or second nut. Oil retaining and water excluding must be very thorough. Bearings of this type I understand are specially made for us, but use standard sizes if possible with… | ||
| Scan060 | Suggesting the substitution of Belmoline C grease for Duckham's H.B.B. grease for packing ball bearings. | ||
| View original record | X515 BY. from ROY. c. to Hs. ROY3/MG21.8.28 Under existing arrangements we use Duckham's H.B.B.Grease for packing Hoffmann Ball Bearings, in accordance with recommendations from the Hoffmann Company.… | ||
| Scan061 | Copy of a letter from Hoffmann Manufacturing Co. Ltd regarding approved bearing lubricants. | ||
| View original record | Copy of letter From: THE HOFFMANN MANUFACTURING CO.LTD To: Rolls Royce Ltd, Derby "It may interest you to know that in addition to "Duckham's H.B.B.Grease which we recommend for use in connection with… | ||
| Scan062 | The trial of Schubert type angular thrust bearings for India 4 gears. | ||
| View original record | PHC c. Hs. BY8/G.30.10.28. x547 INDIA 4. GEARS. ----------------- We are of the opinion that we should try out the Schubert type angular thrust bearings, of which we obtained half a dozen from America… | ||
| Scan063 | Letter from The United States Graphite Co. introducing their self-lubricating bearing 'Gramix'. | ||
| View original record | X4282 3907 THE UNITED STATES GRAPHITE CO. DISTRICT OFFICES: NEW YORK PHILADELPHIA PITTSBURGH CHICAGO SAN FRANCISCO ST. LOUIS CABLE ADDRESS "MEXICAN SAGINAW" ALL CODES MINERS OF GRAPHITE MANUFACTURERS… | ||
| Scan064 | Promotional tag for GRAMIX self-lubricating bearings. | ||
| View original record | GRAMIX A BEARING with the Lubrication Built in USG | ||
| Scan065 | Modifications to an 'SS' clutch design, referencing bearings from Hoffman and Skefco. | ||
| View original record | X547. BY. from DA. c. to SG. Hs. DA1/M15.2.29. 'SS' CLUTCH. X.7300 X.548 X.547 We received your telegram yesterday re. a method of holding the inner or outer race while we slid the opposite one under… | ||
| Scan066 | Letter regarding an application from Skefko Company to submit their self-aligning ball-bearings for consideration. | ||
| View original record | TELEPHONE No. 7200 CENTRAL. TELEGRAMS: "ORGANIZE, MANCHESTER." TRAFFORD PARK, MANCHESTER. X548 [STAMP: RECEIVED APR 2 1912] [STAMP: CJ / 3 / IV / 12] 1st April, 1912. [Handwritten note: Mrs Deas ack:… | ||
| Scan067 | Departmental memo requesting the testing of Skiffco ball bearings. | ||
| View original record | R.R. 3482 (100 H) (M 42. 10.2.10) E.P. 6019. DEPARTMENTAL MEMO. Issued 4th April 1912. Z548 1168 This column is for Name of Person addressed. DATE. Skiffco Ball Bearings. Mr Barrington. for T.C.… | ||
| Scan068 | Requesting an experiment to compare 'Skefko' and 'Hoffmann' ball bearings. | ||
| View original record | R.R.537. (100H) (XX 996. 23.6.13) E.P. 4502. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS "ROYCAR," DERBY. TELEPHONES: 478 (FOUR LINES). X648 Names and Indicating letter. Initial of person… | ||
| Scan069 | Requesting experiments with Skefko ball bearings due to issues with Hoffmann bearings. | ||
| View original record | No. WOR25/T2913. X548 Sept. 2nd, 1913. I explained to Mr. Royce that we were having some trouble with Hoffmann ball bearings, and he suggested that we try some experiments with Skefko ball bearings.… | ||
| Scan070 | Fitting of Skefko ball bearings to the gearbox and rear axle, referencing two production cards and an instruction sheet. | ||
| View original record | Wor/SM12/L91013. Re Skefko Ball Bearings. X.548 Mr Matthews. 9-10-13. We attach herewith 2 produc- tion cards for :- Change Gear Box to be fitted with Skefko Ball Bearings. Rear Axle to be fitted with… | ||
| Scan071 | Agreeing to fit Skefko ball bearings to production gear and axle boxes for observation. | ||
| View original record | Wor/S4/L161013. Re Skefko Ball Bearings. X.548 Mr Matthews. 16-10-13. Mr Wormald agrees that the above should be fitted to production Gear and Axle Boxes for Mr Swift's observation and report. p. Wor. | ||
| Scan072 | Skefko ball bearings for gearboxes and rear axles. | ||
| View original record | X 548 Extract from 30-10-13 in x257. Skefko. Ball Bearings. I sent one set each of these Bearings for Gear Box and Rear Axle to Mr Swift, he is dealing with same. The others are awaiting Mr Haldenby.… | ||
| Scan073 | Proposal to return and test Skeffko ball bearings to ascertain the percentage of defects. | ||
| View original record | Nov. 5th. 1913 Re Skeffko Ball Bearings. X.548 Production cards were issued to the works on 9/10/13 and Mr Matthews has handed a set fitted to both Rear Axle and Change Gear Box to Mr Swift. It is now… | ||
| Scan074 | Internal memorandum requesting test results for Skefko ball bearings used in the gearbox and hubs. | ||
| View original record | R.R. 657. (100H) (XX. 426. 18.9.13) E.P. 4085. ROLLS-ROYCE LIMITED, F.R. NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and indicating letter. Initial of… | ||
| Scan075 | Extract concerning a 1926 gearbox fitted with Skefko ball bearings. | ||
| View original record | X 548 Extract from AEM 7056 / 14/113x366 Gear Box of 1926 fitted with Skefko Ball Bearing. | ||
| Scan076 | The failure of Skefko ball bearings during a silence test and requesting a report on the return percentage. | ||
| View original record | Re Skefko Ball Bearings. Wor. I have just received some 17 boxes of these. A set were fitted to a gear box on 14 Nov-13, or 1926. One of the points we should know is what percentage of bearings had to… | ||
| Scan077 | In reply to a query about Skefko Ball Bearings, detailing a report on their silence test performance. | ||
| View original record | R.R. 985A (150 m) (XX. 450. 8.10.13) E.P. 5166. Wor/SM10/L181113. Re Skefko Ball Bearings. X.548 Na. 18-11-13. In reply to your memo Na2/B111113, Mr Haldenby reports as follows :- "I have just… | ||
| Scan078 | Referencing an extract about fitting Skefko Bearings. | ||
| View original record | X 548 Extract from AEM19644/14:3:14 in X397 Fitted to 2300. Skefko Bearings. | ||
| Scan079 | List of experimental parts and modifications fitted to Chassis 58 N A. | ||
| View original record | R.R. 235A (150 H) (V.V. 651 12-3-14) G. 0414. COPY. Mr Matthews sheet 19675 of 7.4.14. X.548. Re Chassis 58 N A. This Chassis has been fitted with the following Experiments, etc.:- 24° Radiator E4139… | ||
| Scan080 | Instruction sheet requesting an urgent order for various Skaffko ball bearings for a self-starter motor. | ||
| View original record | C O P Y. Mr Bailey's Instruction Sheet 21188 of 6-6-14. To Mr Mercer Re Ball Bearings on motor etc. Self Starter. X. 170 Kindly note that we will require the following Skaffko Bearings. RL8 - 2 off )… | ||
| Scan081 | The experimental fitting of Skefko Ball Bearings to various car components. | ||
| View original record | R.R. 285A (150 H) (W.W.W. 315. 21-5-14) G. 0570. Wor/Mcr5/B18614. Re Skefko Ball Bearings. X.548. Hy. 18.6.14. These were fitted to the gear box of 1926 in November of last year; they were fitted to… | ||
| Scan082 | And response regarding tests on Skefko ball bearings. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and Indicating letter. Initial of person addressed. Re Skefko Ball Bearings. Hy. 29-6-14.… | ||
| Scan083 | End thrust tests of a Skefko ball bearing compared to Hoffman and D.W.F. bearings. | ||
| View original record | 12A (150 H) (W.W. 276. 12-5-14) G. 0547. From Exp. Dept. Copies to: J. J. H. Na. By. Wor/Hy11/B3714. Report on end thrust tests of ball bearing. X.548. Further to my reports Wor/Hy12/L26614 and… | ||
| Scan084 | On the unsuitability of Skefko ball bearings for end pressure applications like road wheels, noting they are noisier than Hoffmann or D.W.F. types. | ||
| View original record | R.R. 235A (150 H) (W.W. 428. 17-6-14) G. 6626. Copy to Mr. Claremont. COPY To Da. from R. Copy to By. Copy to Na. Copy to Wor. Copy to J. Hy.137/4. R5/P 10. 7. 14. Ball Bearings. - Subject to end… | ||
| Scan085 | Instructions to Mr. Mercer regarding Alteration No. 6395, specifying the substitution of ball bearings. | ||
| View original record | Mr. Day's Instructions - 22098. 13.7.14. to Mr. Mercer. Re Alteration No. 6395. Please note above alteration to L.O.P. F.5285 re issue of prints. Skeffo Ball bearings cancelled and for outer bearing… | ||
| Scan086 | Confirming the removal of Skefko ball bearings from a front axle and steering gear box. | ||
| View original record | R.R. 253A (150 H) (W.W. 435. 17-6-14) G. 9636. RE BALL BEARINGS. J. for R. 16.7.14. Da8/G16714. In accordance with your instruction, we have removed the Skefko Bearings from front axle, and steering… | ||
| Scan087 | Extract from a report on the end thrust tests of ball bearings. | ||
| View original record | X. 548 Extract from Report on end thrust tests of ball bearings. Wor/Hy12/L20714. in X. 515 The Skefko bearing was run with 1500 lbs end pressure for 20 hours and 1 hour 20 minutes with 2000 lbs… | ||
| Scan088 | Summarising the results of an end thrust test on different brands of ball bearings. | ||
| View original record | To Hy. from R. Copy to J. Copy to Wor. Copy to By. C O P Y. RB HGP 24. 7. 14. Re End Thrust Test of Ball Bearings. I thank you for your report, and it seems there is not doubt of the result, and we… | ||
| Scan089 | Design proposals and bearing modifications for the 'SS' clutch. | ||
| View original record | X5248 BY. from DA. c. to SG. Hs. DA1/M15.2.29. 'SS' CLUTCH. X.7300 X.547 We received your telegram yesterday re. a method of holding the inner or outer race while we slid the opposite one under the… | ||
| Scan090 | The unsuitability of ordinary ball thrust bearings for the Goshawk 11 engine at high speeds. | ||
| View original record | To Hs. from R. c. to CJ. c. to Wor. c. to Rg. c. to EP. c. to BY. X3550 RS/F26.10.21. GOSHAWK 11. THRUST BEARING. X.3550 The high speed demonstration at Thetford convinced me that the ordinary type of… | ||
| Scan091 | Request for the results of experiments on different pinion thrust bearings for the Goshawk back axle. | ||
| View original record | To Hs. from Da. Y3650 Da2/M21.7.22. GOSHAWK BACK AXLE. X.4256. X.3550. We are very desirous of knowing the results of experiments in pinion thrust bearings on Gos.11. You will remember that there are… | ||
| Scan092 | List of parts sent from the United States for experimental work. | ||
| View original record | X.3906 Jan. 30th 1920. X.3893. PARTS SENT FROM THE STATES ON JAN. 30TH. '20. ON WHICH EXPERIMENTAL WORK IS REQUIRED. In bag brought) by CY. Selz- ) ed in customs ) Just realeased) & sent to ) F.H.… | ||
| Scan093 | List of parts received from Mr. Olley for inspection and testing. | ||
| View original record | To Hsd from E. Copy to CJ. " " Bn. " " Ck. X.3906 ES/G4.3.20. We send you herewith the following list of parts received from Mr. Olley, for inspection and test: X.3903. 1 Foxboro Thermometer. X.3897.… | ||
| Scan094 | Request for a report on Ball Bearings, attaching a copy of a letter from America. | ||
| View original record | X.3906 EWT. to Wor. C. RY C. FP C. Hs. EWT/LJC3/C11.8.20. Re: Ball Bearings. ---------- I attach herewith copy of letter ref: Oy4/C29.7.20 addressed to CJ. from America. Will you please let me have… | ||
| Scan095 | Letter from Rolls-Royce of America to Claude Johnson requesting test results for Fafnir ball bearings. | ||
| View original record | COPY. Cy4/C29.7.20. July 29th. 1920. Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. re: BALL BEARINGS. Dear Sir, Last April fifteen (15) Fafnir Ball Bearings (1 set) were… | ||
| Scan096 | Rejecting Fafnir ball bearings due to non-compliance with specifications and excessive noise. | ||
| View original record | R.R. 199 (250T) (SDg96 19-7-17) MP 18.865 x3906 HS2/LG13.8.20. To EWT. U.S.A. Dept. from Hs. c. to Wor. c. to By. c. to Da. ------------------- X.3907. BALL BEARINGS. X.3906. With reference to Mr.… | ||
| Scan097 | Continuation of a discussion regarding sourcing American equivalent Hoffman bearings and clarifying the total number of bearings in a set. | ||
| View original record | R.R. 109 (250T) (SD676 19-7-17) MP 18.865 Contd. -2- Hs2/LG13.8.20. Hoffman bearings which we have proved and to try and obtain the nearest samples they can to those bearings. (They have models of… | ||
| Scan098 | Unsatisfactory Hess-Bright bearings on gears received from America. | ||
| View original record | To BY. from EH. 3900x3907 EH3/LG23.10.18. 23rd. Oct. 1918. RE - AMERICAN PARTS. If there is any doubt at all about what type of bearing will be fitted on the gears received from America, I consider we… | ||
| Scan099 | List of parts sent from the United States for which experimental work is required. | ||
| View original record | X.3904 Jan. 30th 1920. X.3893 PARTS SENT FROM THE STATES ON JAN. 30TH. '20. WHICH EXPERIMENTAL WORK SI REQUIRED. In bag brought) by OY. seiz- ) (11) 1 new type A.C. spark plug - auto type. } ed in… | ||
| Scan100 | Outlining issues with Fafnir ball bearings received, detailing why they are unsuitable compared to company specifications. | ||
| View original record | R.R. 255a (100 T) S. G. 843, 19-3-20 G 2618 x3907 To EWT. U.S.A. Dept. from Hs. c. to WGT. c. to BY. c. to Day. F.C. Hs2/LG1S. 8. 20. X.3907 BALL BEARINGS. X.390-6 With reference to Mr. Olley's memo… | ||
| Scan101 | Procurement of Hoffmann ball bearings from America and clarifying the number of bearings in a set. | ||
| View original record | R.R. 238a (100 T) S. G. 643, 19-2-20 G 2616 Contd. -2- Hs2/LG13. 8. 20. ------------- Hoffmann bearings which we have proved and to try and obtain the nearest samples they can to those bearings. (They… | ||
| Scan102 | Cover memo requesting remarks on an attached copy of a letter from America. | ||
| View original record | EWT. to BY. Hs. X 5907 EWT/HJC1/G5.11.20. Re: Replies received from Derby. --------------------------- Attached hereto is copy of letter ref: Oyl-G.161020 addressed to CJ. from America. Will you… | ||
| Scan103 | Letter to the Managing Director discussing replies from Derby regarding steering troubles and the quality and design of various ball bearings. | ||
| View original record | C O P Y. Oyl-G.161020. Oct. 16. 1920. Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Dear Sir:- Re: Replies received from Derby. In accordance with your request, I attach… | ||
| Scan104 | Page 2 of a letter to Mr. Claude Johnson regarding the price of ball bearings. | ||
| View original record | Oyl-G.181020. Oct.16.1920. Mr.Claude Johnson - 2. for our ball bearings about double the standard American price. Very truly yours, ROLLS-ROYCE OF AMERICA Inc. Per___________ MO/G. CC. Mr.Belnap.… | ||
| Scan105 | Extract regarding the use of Hess Bright standard steel cage bearings in all four road wheels. | ||
| View original record | X.3907 Extract from OY1/G3.6.21. X.3764 (16) HESS BRIGHT STANDARD BEARINGS, with steel cages are fitted in all four road wheels. It is believed that this type of standard American bearing made both by… | ||
| Scan106 | Inter-office correspondence discussing the cost of special thrust bearings and recommending alternative standard bearings. | ||
| View original record | X3907 INTER-OFFICE CORRESPONDENCE ROLLS-ROYCE OF AMERICA, INC SPRINGFIELD, MASS. CC Mr. Nadim Mr. Belnap Oy2 - G 27621 June 27, 1921 Dear Hives:- X3907 Re: Ball Bearings Before leaving the subject of… | ||
| Scan107 | Use of 'Radax' type bearings for clutches and comparing bearing standards. | ||
| View original record | Oy2 - G 27621 Sheet #2. (5) Clutch: Use New Departure "Radax" or other large angular contact bearing for spring-thrust and clutch throw out. (Some makers use ordinary deep groove, but the makers do… | ||
| Scan108 | Covering memo for an attached letter from Springfield concerning Ball Bearings. | ||
| View original record | To By. from EWT. c to Hs. X3907 EWT9/FG20.7.21. X3907 Re - Ball Bearings. Attached hereto is copy of letter from Springfield reference Oy3 - G27621 of June 27th, regarding the above. A copy of this… | ||
| Scan109 | Letter discussing the issues and costs of using special inch-size ball bearings versus standard millimetre bearings. | ||
| View original record | COPY. Oy3 - G 27621. June 27th 1921. Mr. Claude Johnson. Managing Director. Rolls-Royce Ltd., London. England. Attention:- Mr. F.H.Royce & Works Committee. Dear Sir, Re Ball Bearings. In view of the… | ||
| Scan110 | Letter regarding inch size bearings and enclosing leaves from an S.A.E. handbook. | ||
| View original record | -2-- We wish to emphasize therefore the desirability of omitting inch size bearings from any future designs. I enclose for Mr. Royce, leaves from the S.A.E. handbook which give full particulars of the… | ||
| Scan111 | Policy on using metric versus inch-sized ball bearings for American production. | ||
| View original record | To CJ. from R. c. to BJ. c. to Wor. c. to Hs. c. to EY. c. to R.R. of America. Inc. for the attention of OY. " " " " Mr.Belknap.) X3907 R8/G23.11.21. RE. BALL BEARINGS - U.S.A. - (CJ/PY25/D9.11.21.)… | ||
| Scan112 | Future use of metric dimensions over English standard inch dimensions in design. | ||
| View original record | contd:- -2- R8/G23.11.21. ------------ shall in future only use those of metric dimensions, but considering our English standard list includes those of inch dimensions, it may be difficult to avoid… | ||
| Scan113 | Letter from a supplier inquiring about a mailing list for an engineering catalog and its updates. | ||
| View original record | X3907 DE WITT PAGE, PRESIDENT. F. G. HUGHES, VICE PRESIDENT. L. G. SIGOURNEY, SECRETARY. WM. E. WIGHTMAN, TREASURER. THE NEW DEPARTURE MANUFACTURING Co. BRISTOL, CONN., U.S.A. CABLE ADDRESS DEPARTURE,… | ||
| Scan114 | The successful testing of a New Departure No. 306 rear axle bevel pinion thrust bearing. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. X3607 Hs3/LG13.10.25. 20 HP. REAR AXLE BEVEL PINION THRUST BEARING. X5350 9-G-111 car which recently ran 10,000 miles in France is… | ||
| Scan115 | Tests of a 20 HP rear axle bevel pinion thrust. | ||
| View original record | R.R. 4934 (So H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. COPY. Expl. No. REF: TESTS ON 20 HP. REAR AXLE BEVEL PINION THRUST. Comparative tests have been carried out with standard double thrust… | ||
| Scan116 | Comparing wear and performance data for different thrust bearing designs. | ||
| View original record | R.R. 499a (50 B) (D.D. 21. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: After the baove tests the bearing was found to be in good condition but the float had increased to .003. This figure… | ||
| Scan117 | Proposed modifications to the rear axle centre casing, including bearing changes and experimental lightening of the differential. | ||
| View original record | BY. from DA. c. to BJ. Hs. X3807 DAL/M12.10.27. EAC.14. BACK AXLE. X.3807 X.7350 X.515 Herewith we send N.sch.2481 shewing the proposed modification to the inside of the rear axle centre casing. Since… | ||
| Scan118 | Erecting a hypoid axle with a 1' offset and the necessary adaptations for a New Departure bearing. | ||
| View original record | BY. from DA. c. to BJ. Hs. 43807 DAL/M14.1.28. HYPOID AXLE 1" OFFSET. X.2066 X.3807 X.547 We understand that you are erecting the hypoid axle with 1" offset for trial immediately. In view of HS'… | ||
| Scan119 | Proposal and alternative suggestions for a new bearing and oil retaining devices on a 1-inch offset hypoid rear axle. | ||
| View original record | BY. from DA. c. to BJ. As. +3807 Da2/M28.2.28. EAC.10 1" OFFSET HYPOID REAR AXLE. X.7350 X.2066 X.3807 Herewith we send N.Sch. 2552/3/5 on which we have shewn XXXX R's proposal for the New Departure… | ||
| Scan120 | Typed memo discussing the components and oil retaining properties of a 1' offset hypoid gear. | ||
| View original record | DA. from R. c. to BJ. BY. Hs. +3807 R9/M5.3.28. 1" OFFSET HYPOID GEAR. X.2066 X.3807 Regarding the 1" offset hypoid gear, the pinion shewn on N.sch.2552 should be used until proved wrong - i.e. with… | ||
| Scan121 | Preference for a 'New Departure' type bearing over a 'Schatz' bearing, with suggestions for fitting and oil retention. | ||
| View original record | DA. from R. c. to BJ. Wor. BY. Hs. 43807 RL/M14.2.28. MAC.10 43807 4547 Re. N.Sch.2537, from the experience mentioned It certainly suggests that Schatz bearing is treacherous but I understood that… | ||
| Scan122 | Continuation page of a note discussing the specifics of bearings, oil retention, and water exclusion. | ||
| View original record | contd :- -2- some form, or second nut. Oil retaining and water excluding must be very thorough. Bearings of this type I understand are specially made for us, but use standard sizes if possible with… | ||
| Scan123 | Request to order New Departure type thrust bearings for the 20 HP pinion. | ||
| View original record | X3807 o.c. c. RHC. c. Hs. BY1/G.23.11.28. 20 HP. PINION - NEW DEPARTURE TYPE THRUST BEARING. Will you please order for the Experimental Department for use on the 20 HP. chassis, bearings of the type… | ||