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).
The softness of bearings after heat treatment and arrangements for material return.
| Identifier | ExFiles\Box 115\3\ scan0093 | |
| Date | 17th September 1937 | |
| COPY. Cgh{W Clough}/EM. c. Hl. c. Mr. Pendlebury c. RHC{R. H. Coverley - Production Engineer}/Mr.Hampson c. RHC{R. H. Coverley - Production Engineer}/GH. c. RHC{R. H. Coverley - Production Engineer}/EG. c. RHC.{R. H. Coverley - Production Engineer} HS{Lord Ernest Hives - Chair}/JWW.6/DB.{Donald Bastow - Suspensions}17.9.37. EB.3331, EB.3332/3 & EB.3334. AC.2 MATERIAL. Confirming our conversation of this morning regarding the Bearings in the above material that appear to be soft after heat treatment, it is agreed to accept these bearings with a minimum brinell of 73. Meantime over- ruling 85-90 which is shown on the drawing. This latter figure we understand is the brinell figure reached after the bearings have been in use for a period. Concerning the material in stock at the Alum. Foundry, we shall be much obliged if EM would arrange for this to be returned to H.D.A.Ltd., and replaced in the usual manner. We are in the meantime making the necessary mixture in order to cope with production requirements. HS{Lord Ernest Hives - Chair}/JWW. | ||