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 Hoffmann Manufacturing regarding issues with Bearing N.2001 due to noise.
| Identifier | ExFiles\Box 93\3\ scan0283 | |
| Date | 11th March 1937 | |
| HOFFMANN 1110 Registered Trade Mark BALL-AND-ROLLER BEARINGS STEEL-BALLS-AND-ROLLERS THE HOFFMANN MANUFACTURING Co., LTD. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE AND INDIA OFFICE. CHELMSFORD. BRANCHES: LONDON, BIRMINGHAM, MANCHESTER, LEEDS, GLASGOW. AGENTS IN PRINCIPAL COUNTRIES THROUGHOUT THE WORLD. TELEPHONE: 3151 (5 lines) TELEGRAMS: HOFFMANN, CHELMSFORD CODES USED: A.B.C. 5TH EDITION, BENTLEY PHRASE, BENTLEY 2ND PHRASE, MARCONI AND WESTERN UNION 5 LETTER MESSRS. ROLLS-ROYCE LTD., EXPERIMENTAL DEPARTMENT, DERBY. 11th March 1937. YOUR REF. Rm{William Robotham - Chief Engineer}/Smth.16/AP. IN YOUR REPLY PLEASE QUOTE OUR REF. PEC/WAH. Dear Sirs, Re: BEARING N.2001. We received your letter of the 5th March, and were sorry to note your remarks to the effect that a good deal of trouble is being experienced with the above bearing due to noise. Although we have looked over our records, we are not able to trace details of the application and in order therefore that we can investigate the matter in detail, would it be possible for you to send some of the bearings, preferably those that have been running for some time, for these will then show well defined marks. No doubt an examination of such bearings will enable us to come to some definite conclusion as to why the trouble to which you refer is being met with. Awaiting your reply and assuring you of our desire to co-operate with you in the fullest possible way, We are, Yours faithfully, THE HOFFMANN MANUFACTURING CO. LTD. | ||