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).
Letter from Ransome & Marles Bearing Co. regarding the polishing of a double row ball bearing and tests on gear lubricant.
| Identifier | ExFiles\Box 94\2\ scan0286 | |
| Date | 24th September 1937 | |
| London Office: 17, VICTORIA STREET, WESTMINSTER, S. W. 1. Handwritten Note: GRY{Shadwell Grylls} - Let us run the recommended pre-load on as many of your cars as possible RM{William Robotham - Chief Engineer} [Sticker: INTERNATIONAL MOTOR EXHIBITION CARS & BOATS OCT 14-23, EARLS COURT, OUR STANDS No. 328 No. 335 FIRST FLOOR] [Handwritten Number: 328] [Company Header: RANSOME & MARLES BEARING CO., LTD., MANUFACTURERS OF BALL & ROLLER BEARINGS, NEWARK ON TRENT.] Contractors to H.M. Admiralty, War Office, Air Ministry, Colonial Offices &c. Telegraphic Address: "BEARINGS, NEWARK" Codes Used: BENTLEY'S Telephone Nos: NEWARK 456-457-458-459 Branch Offices: SHEFFIELD, BRISTOL, GLASGOW, NEWCASTLE, DUBLIN, BELFAST. Our Ref. Tech.Dept. FOH/AD. Your Ref. S. H.{Arthur M. Hanbury - Head Complaints} Grylls, Esq., Rolls-Royce, Limited, D E R B Y : 24th September, 1937. My dear Grylls, With reference to your letter of the 22nd inst., I am returning by post under separate cover the double row ball bearing, 1/MDJT.1.1/4", and all I have done to this is to have the tracks polished, and of course, a new set of balls fitted. In the state as received the feel of the bearing was very rough, and from an examination of the bearing and the surfaces there is no doubt that this roughness was due to the presence of metallic foreign matter, and I should imagine this is loose matter from the gearbox itself. However, after polishing I believe you will find the bearing quite satisfactory from the point of view of run, but if this is not the case then the only thing we can do is to re-track this and re-fit it up, but in view of the urgency I thought it better to send the bearing so that you can try it as it stands. With regard to the Vacuum Hypoid Gear Lubricant which was discussed during my recent visit, this I find we have tested, and you will find the results of this test under Test Report 753.B.(2). This report you will find amongst the complete set of Test Reports on "E.P." lubricants, and I trust this information will be of interest and utility. Incidentally, referring to the question of pre-loading the pinion bearing, our 6/MDJT.30, I rather thought during our [Stamp: Enclosure] | ||