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 a bearing manufacturer detailing the results of a 100-hour oil test and proposing further comparative tests.
| Identifier | ExFiles\Box 114\2\ scan0060 | |
| Date | 15th August 1934 | |
| X3807 London Office: 17, VICTORIA STREET, WESTMINSTER, S.W. 1. Telephone: VICTORIA 4278-4279 Telegrams: OFFISLUNDA, SOWEST, LONDON BALL & ROLLER R&M BEARINGS Telegraphic Address: "BEARINGS, NEWARK" Telegraphic Code: 'BENTLEY'S' Telephone Nos: NEWARK 456-457-458. Contractors to H.M. Admiralty, War Office, Air Ministry, Colonial Offices &c. RANSOME & MARLES BEARING CO., LTD., MANUFACTURERS OF BALL & ROLLER BEARINGS NEWARK ON TRENT. Branch Offices: LONDON, BIRMINGHAM, MANCHESTER, LEEDS, NOTTINGHAM AND- Branch Offices: SHEFFIELD, BRISTOL, GLASGOW, NEWCASTLE, DUBLIN, BELFAST. Our Ref. Tech.Dept. FOH/MB. Your Ref. Messrs. Rolls-Royce, Limited, D E R B Y. 15th August, 1934. FOR THE ATTENTION OF -. GRYLLS ESQ: GRY{Shadwell Grylls} Dear Sirs, WAKEFIELD 'HI-PRESS' GEAR OIL NO. B.7532. With regard to the above, it will be remembered that we agreed to give this new oil a run of 100 hours on the 30 m/m.{Mr Moon / Mr Moore} bearing, and with the same conditions as Whitmore oil, and at the end of this run, we find that the oil has lubricated efficiently, there being no signs of any wear or pick up, while there is practically no separation. We propose to run a further test for an extended period in order to get a direct comparison over a run as long as the longest one which we have run on Whitmore oil, and we will keep you posted from time to time as to the results obtained. Yours faithfully, RANSOME & MARLES BEARING CO. LTD. WDSharpe / per Bm MANAGING DIRECTOR. | ||