Rolls-Royce Archives
| Identifier | Entry | ||
| X 602 Axle Rear-page01 | The Wraith Rear Axle design, detailing gear ratios, stresses, and bearing modifications. | ||
| View original record | Handwritten: Copy Rem 602 To Mr. EF. from Da. Da.2/HP.12.12.34. c.c. Mr. E. Hs. Mdy. HLC. Wraith Rear Axle. Herewith is N. Sch.4278, rear axle centre casing and hypoid gears. The gears suggested are… | ||
| X 602 Axle Rear-page02 | Drawings for the Wraith rear-axle tubes, driving shafts and links. | ||
| View original record | SECRET TO:E.W. Copy to Mr E.S. Mr. H. Mr. R. Da.2./AN.29.3.35. 10709 602 ------------------ WRAITH - Rear-axle Tubes, etc. These two drawings,N.Sch.4295 and 4330 have been made for some time,and we… | ||
| X 602 Axle Rear-page03 | Design change to the Wraith rear axle tubes, referencing schematic N.Sch.4638. | ||
| View original record | 602 c. E.Hs. RMD. Da.2/HP.21.9.35. Wraith Rear Axle Tubes. We also wish to deal with the Wraith axle tubes in the same way as Spectre, and send N.Sch.4638 herewith which shows the increased radius.… | ||
| X 602 Axle Rear-page04 | Design specifications and stress calculations for the Wraith II back axle pinion and crown wheel. | ||
| View original record | x104 602 GRY - C. [REDACTED] Hs/Rm. E/HDY.1/HP.20.6.38. Wraith II - Back Axle. We send herewith W.Sch.4831, which gives particulars of the pinion and crown wheel for this axle. The ratio is 4.625:1… | ||
| X 602 Axle Rear-page05 | Design and materials for the Wraith II rear axle's pinion and crown wheel housing. | ||
| View original record | DI. GRY K1264 602 C. E; Dar; Hsy; N; Hp; Hs; Fm. E/HDY.2/HP.29.6.36. Wraith II Rear Axle. Pinion and Crown Wheel Housing. We send herewith N.Sch.4827 and 4828 which show the above. Particulars of the… | ||
| X 602 Axle Rear-page06 | Letter from Ransome & Marles Bearing Co. Ltd. regarding rear axle construction and enclosed drawings. | ||
| View original record | W/r rear axle 602 London Office: 17, VICTORIA STREET, WESTMINSTER, S.W.1. Telephone - VICTORIA 6782-3-4-5. Telegrams: OFFISAGEM, SOWEST, LONDON BALL & ROLLER R&M BEARINGS Contractors to H.M.… | ||
| X 602 Axle Rear-page07 | Letter from Ransome & Marles Bearing Co., Ltd. describing various axle and axle casing drawings. | ||
| View original record | RANSOME & MARLES BEARING Co., Ltd. -2- S. H. Grylls, Esq. D E R B Y. 6-7-36. DRAWING NO. 8320. A & B. This shows a 3-ton bevel driven axle, it being noted that the differential bearings are mounted… | ||
| X 602 Axle Rear-page08 | Letter discussing the design and material specifications for a 9' register axle, referencing drawing no. 3008/4. | ||
| View original record | RANSOME & MARLES BEARING Co., Ltd. -3- S. H. Grylls, Esq., D E R B Y. 6-7-36. considerable extent, so as to reduce weight to a minimum without affecting strength. DRAWING NO. 3008/4. This shews a 9"… | ||
| X 602 Axle Rear-page09 | Letter from Ransome & Marles Bearing Co. Ltd. discussing a bearing mounting scheme for a differential. | ||
| View original record | RANSOME & MARLES BEARING Co., Ltd. S. H. Grylls, Esq. DERBY. 6-7-30. your present scheme, using the Schatz bearing. However, here again, probably your own experience indicates that the mounting is… | ||
| X 602 Axle Rear-page10 | Specifications for the Wraith II rear axle banjo, tubes, hubs, and shafts. | ||
| View original record | copy 602 C.C. to Mr. Hives, Mr. Rowledge E/HUY.2/HP.7.7.36. Wraith II - Rear Axle Banjo and Tubes. Spring Anchorages, Hubs and Axle Shafts. We send herewith N.Sch.4826 which shows the above. The banjo… | ||
| X 602 Axle Rear-page11 | Design and construction of the proposed Wraith rear axle. | ||
| View original record | X1044 602 To R. From Hs/Gry. c. to Wor. c. to Da. c. to By. c. to Hdy. Hs/Gry.7/EJ.11.8.36. REAR AXLE CONSTRUCTION. The design of the proposed Wraith rear axle is of banjo construction using a Scott… | ||
| X 602 Axle Rear-page12 | Blueprint showing the suggested rear axle construction for the Wraith model. | ||
| View original record | SUGGESTED REAR AXLE CONSTRUCTION FOR WRAITH. | ||
| X 602 Axle Rear-page13 | Request to manufacture a mild steel stiffening plate and fit it to a Scott tube for the Wraith rear axle for deflection testing. | ||
| View original record | To H.I.C. Rep to Ha/HB x44 662 Ha/Gry.1/JH.13.8.36. We have received from Da. the attached drawing, showing the stiffening plate that can be fitted in the Scott tube we have been testing for the… | ||
| X 602 Axle Rear-page14 | Drawing of a stiffening plate for fitting to an experimental banjo axle. | ||
| View original record | [ "STIFFENING PLATE FOR FITTING TO EXPERIMENTAL", "BANJO AXLE", "SCALE 1/1", "THIS DIA. TO LIE ALONG", "HORIZONTAL AXIS OF AXLE.", "12 - .312 BOLTS", ".187", "W.A.ROBOTHAM", "C18", "RR A5864" ], | ||
| X 602 Axle Rear-page15 | Cost, design, and testing of the Wraith rear axle. | ||
| View original record | X144 602 HS/Rm. c. De. He/Gry. E/HDV E.3/HP.14.8.36. Wraith Rear Axle. ------------------ With reference to the question of the Wraith rear axle, I have seen G/Rb, and he has told me that there is a… | ||
| X 602 Axle Rear-page16 | Design considerations for an axle, comparing different types and their drawbacks. | ||
| View original record | (sheet 2) at present designed which we should lose by going to the J.III type, and we ought, therefore, to endeavour to secure a good banjo. With regard to the question of slacks in the drive, we had… | ||
| X 602 Axle Rear-page17 | The procurement of a Wraith II back axle from Kirkstall Forge, comparing mild versus nickel steel. | ||
| View original record | KIDLY GRY- 602 RDV. C.E., Ex-De., Hn/Fm. E/HDY.2/HP.21.8.36. Wraith II Back Axle. Will you kindly order from The Kirkstall Forge Co.Ltd.LEEDS.S. one back axle forging in mild steel as shown by our… | ||
| X 602 Axle Rear-page18 | Modifications to the Wraith II back axle, including a new stiffening plate and shouldered studs. | ||
| View original record | Scott Gry 102 C. E. Dept. Memo. Hg/Fm. E/HDY.1/HP.12.9.36. Wraith II. Back Axle. We send herewith N.Sch.4901 showing a stiffening plate to be welded to the Scott axle forging for the axle shown by… | ||
| X 602 Axle Rear-page19 | Recommendations for rear axle construction, including testing a Ford axle and considering a new half-floating scheme. | ||
| View original record | To Mr. a E. c. to SG. c. to Hy. c. to Pe. c. to Hdy. X+D44 60~ Ha/Rm.14/EW.24.9.36. Rear Axle Construction. Our recommendations are - (1) That we immediately buy a Ford Rear axle at a cost of about… | ||
| X 602 Axle Rear-page20 | Cost comparison of different rear axle construction designs. | ||
| View original record | To Wor. & R. c. to Sg. c. to By. c. to Ba. c. to Hdy. 602 Ha/Ory.13/AR.24.9.36. Rear Axle Construction. In view of the recent discussion on altering rear axle design, we have been very thoroughly into… | ||
| X 602 Axle Rear-page21 | Reduction of costs by using half-floating or butt-welded axle shafts and addressing potential failures. | ||
| View original record | -2- Ha/Gry.13/AW.24.9.36. Secondly, there should be a reduction of about £1 per car if we used half floating axle shafts integral with the bevel wheel, and about 10/- per car if the shafts were… | ||
| X 602 Axle Rear-page22 | Design, testing, and cost-effectiveness of a banjo tube rear axle for the Wraith model. | ||
| View original record | Ha/Gry.16/KW.24.9.36. Rear Axle Construction. The Wraith rear axle has been designed with a banjo tube made on the Scott principle. The object of this departure from the usual R.R. arrangement is to… | ||
| X 602 Axle Rear-page23 | Comparative analysis of axle designs, focusing on half-floating axles and referencing models from Ford, Rover, Aston Martin, Bentley, and Lagonda. | ||
| View original record | -2- We consider the most important innovation required in R.R. axle design the elimination of slack, with particular reference to the wheel drivers. This can be achieved with a saving in cost by… | ||
| X 602 Axle Rear-page24 | Recommendations for a new axle design, detailing specifications and comparing half-floating and 3/4 floating options. | ||
| View original record | -3- Hs/Gry.16/KB.24.9.36. We attach a sketch showing how we could try a 45 or 40 m/m. half shaft on the present Bentley with a very small overhang. We shall test this on a rig the equivalent of… | ||
| X 602 Axle Rear-page25 | The weight and cost implications of half floating axles versus fully floating axles, and pressed wheels versus spoked wheels. | ||
| View original record | -4- Hs/Gry.16/Ks.24.9.36. We realise that a half floating arrangement will always weigh more than a fully floating axle, but think the extra weight (due solely to the larger axle shafts) is worth… | ||
| X 602 Axle Rear-page26 | Letter to Britannia Ltd. requesting a quotation for the manufacture of a .45' carbon steel tube. | ||
| View original record | X602 Exptl. Dept. Hs/Gry.23/KW. 3rd September, 1936. Messrs. Britannia Ltd., Glover Street, Birmingham 9. Dear Sirs, We are sending you herewith a sketch of a tube that we are interested in obtaining.… | ||
| X 602 Axle Rear-page27 | Inquiry to Messrs. Tubes Ltd. regarding the potential manufacture and cost of a .45' carbon steel tube. | ||
| View original record | 602 Exptl. Dept. Ha/Gry.22/KW. 3rd September, 1936. Messrs. Tubes ltd., Aston, Birmingham. Dear Sirs, We are sending you herewith a sketch of a tube that we are interested in obtaining. We do not know… | ||
| X 602 Axle Rear-page28 | Letter from The Britannia Tube Co. Limited declining to quote for the manufacture of Tapered Tube. | ||
| View original record | A1064 4602 ON ADMIRALTY, AIR BOARD & WAR OFFICE LISTS REGISTERED TRADE MARK. LONDON OFFICE, 25, VICTORIA STREET, WESTMINSTER, S.W.1. TELEPHONE VICTORIA 5163. TELEPHONE VICTORIA 0192 (4 LINES)… | ||
| X 602 Axle Rear-page29 | Design and manufacturing specifications for the Wraith II back axle. | ||
| View original record | +664 Gry. 602 PPS C.C. to. Dr. KHC. Rm. Rev. E/HDY.3/HP.6.11.36. Wraith II Back Axle. We send herewith N.Sch.4944 showing the axle tubes, shafts, hubs and jack brackets for the 25/30 HP. axle centre… | ||
| X 602 Axle Rear-page30 | Material for Wraith Rear Axle Half Shafts, recommending a higher quality material to prevent failures. | ||
| View original record | To By. from Rm/Gry. c. to E. c. to Eu. L04A 602 Rm/Gry.6/AP.1.12.36. Wraith Rear Axle Half Shafts The present detail drawings of these parts call for S/NCR. material. The half shafts on our existing… | ||
| X 602 Axle Rear-page31 | Increase in diameter for the Wraith II back axle shafts, referencing the Phantom III design. | ||
| View original record | L.E.Smith. 10-AUG. 602 Please discuss Rm HPS. O.W. E. De. Ev. Rm. E/HDY.1/HP.16.12.26. Wraith II Back Axle. It has been decided that the axle shafts for the Phantom III back axle applied to this car… | ||
| X 602 Axle Rear-page32 | Sending a print of a 1.312 diameter axle shaft for the Wraith II back axle. | ||
| View original record | 1044 602 GRY L1892 C. E. De. Dv. Fm. E/HDY.1/HP.17.12.36. Wraith II - Back Axle. We send herewith a print of N.Sch.4979 which shows the 1.312 diameter axle shaft referred to in E/HDY.1/HP.16.12.36.… | ||
| X 602 Axle Rear-page33 | Specifications for the Wraith II back axle, referencing schematics 4954 and 5014. | ||
| View original record | SECRET. GRY 602. HPH BT. c.c.Mr.Bde. Mr. Jebb. E/HDY.1/HP.1.2.37. WRAITH II BACK AXLE. We send herewith N.Sch's 4954 and 5014 in connection with the above. N.Sch.4954 shows a centre casing of R.R.… | ||
| X 602 Axle Rear-page34 | Modifications to the Wraith III rear axle, reverting to a previous design standard. | ||
| View original record | SECRET Smith 602 HY. Cr. E. B. Dg. Rm. MFS. E/HDY.2/HP.3.3.37. Wraith III - Rear Axle. We send herewith N.Sch's 5059 and 5068 showing the modifications required to suit axle shafts solid with the… | ||
| X 602 Axle Rear-page35 | Secret memo detailing design alterations for the Wraith III back axle to save cost. | ||
| View original record | Smith 602. BT. SECRET. C.E. De. Rm. HFS. E/HDY.S/HP.17.3.37. Wraith III Back Axle. We send herewith N.Sch.5084 showing the nearside end plate integral with the crown wheel bearing housing and the… | ||
| X 602 Axle Rear-page36 | Modifications for the Wraith III back axle, applying features from the Phantom III axle. | ||
| View original record | SECRET. 602. [Signature] EFM c.-S. Da. Fm.NBS. E/EV. E/HDY.2/NP.22.3.37. Wraith III Back Axle. We send herewith N.Sch.5090 showing a combined filling plug and level stick and a simplified vent (as… | ||
| X 602 Axle Rear-page37 | The use of clearance holes for bolts on the Wraith III back axle. | ||
| View original record | EW. 602. c. E. Rs. Bm. HPS. E/HDY.1/HP.19.3.37. Wraith III Back Axle. Further to E/HDY.5/HP.17.3.37, we should have remarked that the use of clearance holes for the bolts between the axle tube and the… | ||
| X 602 Axle Rear-page38 | Hardening of external splines on the Wraith rear axle wheel driver. | ||
| View original record | By. from Rm/Gry. 602 Rm/Gry10/R.12.4.37. WRAITH REAR AXLE. With regard to N. Sch.5059 showing the usual type of wheel driver in the P.III centre case Wraith rear axle, we think that the external… | ||
| X 602 Axle Rear-page39 | Modifications to the rear axle and hub components for the Wraith III model. | ||
| View original record | SECRET. 002. BY C.E. De. Rm. HPS. V/AR. E/HDY.1/HP.15.4.37. Rear Axle - Wraith III. We send herewith N.Sch.5115 showing modifications to some of the rear hub pieces to give access to the nuts which… | ||
| X 602 Axle Rear-page40 | Modifications to the Wraith III Back Axle. | ||
| View original record | SECRET. 602. Confidential. For Office use only. E/HDY.1/HP.19.4.37. Wraith III Back Axle. We send herewith H.Sch.5108 showing a modification to the shape of the axle tubes adjacent to the hubs,which… | ||
| X 602 Axle Rear-page41 | Modification to the Wraith III rear axle shafts. | ||
| View original record | SECRET. 602 BY C.E.R. Hs. Rm. FFB. E/IDY.1/BP.22.4.37. Wraith III Rear Axle. We send herewith N.Sch.5128 showing a modification to the rear axle shafts. The shaft is not now turned down to the… | ||
| X 602 Axle Rear-page42 | Suggesting revised drilling clearances for bolt holes on the Wraith III & Phantom III back axle. | ||
| View original record | To: H.S. Copies to: Mr. C, Ra., Grn., N'pton. 602 WRAITH III & PHANTOM III BACK AXLE. With reference to the attachment of the axle tubes to the centre casing side plates, and the side plates to the… | ||
| X 602 Axle Rear-page43 | Alterations to hole sizes on the back axle for Wraith III and Phantom III models. | ||
| View original record | To Mr. [redacted] from HPS/RH. c. to [redacted] c. to Rm. [redacted] 602 HPS/No.1/VS.13.7.37. WRAITH III AND PHANTOM III BACK AXLE. Re your memo R/Hdy.1/JR.18.7.37. suggesting alterations to sizes of… | ||
| X 602 Axle Rear-page44 | Decision regarding the level plug, filler, and breather plugs for the Wraith Axle Centre. | ||
| View original record | To Da. from Rm/Gry. c. By. 602 Rm/Gry.4/AP.2.9.37 WRAITH AXLE CENTRE This is to put on record, the decision that the level plug should be screwed direct into the end plate, which latter is spot faced… | ||
| X 602 Axle Rear-page45 | Decision on modifications to the Wraith rear axle, replacing the dip stick with a level plug. | ||
| View original record | 602. By. from Rm/Gry. c.c. Da. c.c. Ev/CRL. Rm/Gry5/R.13.9.37. WRAITH REAR AXLE. This is to put on record our further decision about the modifications to the centre part of the Wraith axle, deleting… | ||
| X 602 Axle Rear-page46 | Scheme for a new rear axle buffer for the Wraith III model, designed for the .830 Hypoid axle. | ||
| View original record | To. Mr. Hives C. RM. 1023. 602 REAR AXLE BUFFER - WRAITH. lll. Herewith the following scheme :- F.CD.100 Rear Bump Buffer - Wraith lll. This buffer is of a height to suit the .830 Hypoid axle, and is… | ||
| X 602 Axle Rear-page47 | Completely machined Yoke Piece for a Wraith III Front Axle, asking which car it is to be fitted to. | ||
| View original record | To RM/FJH. 602 HPS/WSC.M/BA.7.10.37. Wraith III Front Axle. With reference to you RM/SJB/AI.20.9.37 ? please note that E. X.S.82 Yoke Piece giving 5° castor is now completely machined. Will you please… | ||
| X 602 Axle Rear-page48 | Proposal for a simplified crown wheel mounting for the back axle of Bentley, Bentley 50 and Wraith cars. | ||
| View original record | COPY FOR FILES. Da. BY. c. Rm. 602 also 202 1044 Da/Hdy.2/G.10.12.37. BENTLEY, BENTLEY 50 AND WRAITH - BACK AXLE. We send herewith PD.74 showing an application to Bentley II, for test purposes, of a… | ||
| X 602 Axle Rear-page49 | Deciding on a 1.750 inch diameter for the B.50 and Wraith model's half-floating rear axle shaft. | ||
| View original record | K Grya ~~Da/Adv.~~ ~~G. Dar.~~ G. Jus. ~~Gr. De/Insp.~~ BY.10/G.29.12.37. 602 also 1044 B.50 and WRAITH. HALF FLOATING REAR AXLE. see 1015 See 1044 Referring to Da/HB.27/G.16.12.37. after weighing up… | ||
| X 602 Axle Rear-page50 | Confirmation to fit a pair of Phantom III axle gears, which have been run for one hour on the dynamometer in car 30-FX. | ||
| View original record | 602. To HPS. from Rm/Gry. c. Eys. Rm/Gry.1/AP.14.2.38 25.G.Vl. This is to confirm our asking you to fit Phantom III. axle gears in this car. There is a pair in the Fitting Shop which have only done… | ||
| X 602 Axle Rear-page51 | Suggestion to halt gear machining for the Wraith rear axle pending a decision on a higher ratio. | ||
| View original record | By/Mtn. from Rm/Gry. 602 Rm/Gry5/R.14.2.38. WRAITH AXLE. In view of a possible change to a higher ratio in the Wraith rear axle, we suggest holding up machining of the gears so that P.III parts can be… | ||
| X 602 Axle Rear-page52 | Instruction to fit Phantom III type rear axle gears to a Wraith car. | ||
| View original record | To HPC. 602. Rm/Wym.9/JH.28.3.38. WRAITH CAR 28.G.VI. Will you please fit Phantom III type rear axle gears to the above car, with a correctly calibrated speedometer to suit. Rm/Wym. | ||
| X 602 Axle Rear-page53 | Verbal report on the 10,000-mile test results for carbon steel Wraith rear axle tubes. | ||
| View original record | ROYCE C. RM. [Redacted Text] 11 o'clock . 602 . Da.19/C.21.4.38. Rm WRAITH REAR AXLE TUBES. We are informed verbally that the carbon steel rear axle tubes on the Wraith car which has just concluded… | ||
| X 602 Axle Rear-page54 | Suitability of carbon steel for Wraith rear axle tubes, questioning the reliance on a single 10,000-mile test. | ||
| View original record | Rm. C. Ds. C. Ds/Hdq. C. Ds/Tubes C. Ds/X 602 BY.3/G.26.4.38. WRAITH - REAR AXLE TUBES. Referring to Da.19/G.21.4.38 pointing out carbon steel rear axle tubes were fitted to the 10,000 miles car and… | ||
| X 602 Axle Rear-page55 | The testing and fitting of carbon steel rear axle tubes for the Wraith model. | ||
| View original record | 602 Ry. from Rm. c. Ds. c. Ds/Kdy. c. Ds/TRD. c. Roy. Rm9/R.28.4.38. WRAITH - REAR AXLE TUBES. Replying to Ry3/G.26.4.38., carbon steel axle tubes have not been bumped as yet. We are putting a pair on… | ||
| X 602 Axle Rear-page56 | Procurement of .4 carbon steel and S/N axle tubes for the Wraith model. | ||
| View original record | γ 602. To Roy/Hs. from Rm/Gry. c. By. c. RHC. Rm/Gry.8/MH.29.4.38. .4 CARBON AXLE TUBES - WRAITH. If, as we understand, it is impossible to obtain S/N axle tubes in time for RHC's requirements, thenwe… | ||
| X 602 Axle Rear-page57 | Change of material to 3.5% nickel steel for the rear axle tubes on the first 300 Wraith chassis. | ||
| View original record | 602 FJH COPY [redacted] c. Rm. [redacted] GBX [crossed out] EY.18/G/22.6.38. HK* WRAITH CHASSIS - REAR AXLE TUBES. Will you kindly note that the first 300 Wraith cars to be produced will be fitted… | ||
| X 602 Axle Rear-page58 | Index card detailing components for the 25/30 Wraith Chassis, including the Propeller Shaft and Rear Axle. | ||
| View original record | 602 Rom/Gry. By/CRH 2/k 30.11.38 25/30 Wraith Chassis Propeller Shaft Rear Axle file 637 | ||
| X 602 Axle Rear-page59 | File note regarding the 25/30 HP Chassis gearbox, with a cross-reference to another file. | ||
| View original record | 602. Gry. By/Cul. 7/B.6.12.38 25/30 H.P. Chassis Gearbox see file 628. | ||
| X 602 Axle Rear-page60 | Cracked end plate and sheared bolts on a Wraith III Bumper Chassis rear axle following testing. | ||
| View original record | 602 and 100H To. RH, from HPS/AB. ~~Sy-Bgy~~ c.c. Hm/Gry. FJH A H* HPS/AB.1/VS.14.1.39. WRAITH III BUMPER CHASSIS. We attach hereto for reference photographs of cracked R.H. End Plate G.85608 of Rear… | ||
| X 602 Axle Rear-page61 | Photograph showing a cracked end plate of a rear axle centre case for a Wraith III. | ||
| View original record | WRAITH III CRACKED END PLATE OF REAR AXLE CENTRE CASE. | ||
| X 602 Axle Rear-page62 | Photographic plate showing sheared end plate bolts and associated nuts. | ||
| View original record | SHEARED END PLATE BOLTS. | ||