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 Silentbloc Limited discussing deflection test results for their bearings versus a customer's mounting.
| Identifier | ExFiles\Box 94\1\ scan0306 | |
| Date | 16th January 1936 | |
| DIRECTORS: T. B. ANDRE H.{Arthur M. Hanbury - Head Complaints} VEZEY STRONG V.{VIENNA} A.{Mr Adams} TRIER W. L. HARRIS SILENTBLOC LIMITED TELEGRAMS SILENTBLOC, NOTTARCH, LONDON VICTORIA GARDENS LADBROKE ROAD NOTTING HILL GATE LONDON, W.11 TELEPHONE PARK 9821 (4 LINES) [SILENTBLOC LOGO] WLH/GO. 16.1.36. Hs{Lord Ernest Hives - Chair}/Les.19/KW. Exptl.Dept. Messrs.Rolls Royce Ltd., DERBY. Dear Sirs, We thank you for your letter of the 14th instant, and note your remarks. We have put in hand the units as per suggestion "B" on the drawing sent you, and the first two will be available in a few days. Regarding your second paragraph, we should like to point out that the rubber in the Silentbloc Bearing is in a state of tension, and moreover there are a number of differences between the Silentbloc Bearing and the bonded type of bearing quite apart from the hardness of the rubber, which accounts for the varying flexibility. Below, we give you a copy of the deflection tests carried out on the bearings which you sent us and our own bearings :- Load (lb). Your mounting. Our No.1.mounting. 0 0. 0. 100. .012 .012 150. .019 .020 200. .023 .026 250. .028 .032 300. .033 .038 500. .050 .055 Regarding the question of price, we are going into this matter, and will write you further in due course. This letter also replies to your communication dated the 15th instant, ref.Ray/GCS/MW. Yours faithfully, SILENTBLOC LIMITED, [Signature] DIRECTOR & MANAGER. | ||