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).
Blueprint for a front main bearing, bottom half.
| Identifier | ExFiles\Box 116\1\ scan0146 | |
| Date | 8th March 1926 | |
| PART NO. 16HP TYPE 75 1 PART NO. 03126 SUPPLIERS TO LEAVE .010" IN BORE FOR MACHINING IN POSITION. - FRONT MAIN BEARING (BOTTOM HALF) - MATL: C.P.S.10. BRINELL 95-105 PART No. 03251 -.020 UNDERSIZE No ALTERATION LETTERS: A ALTERATION NUMBERS: 10/7/36 2.812"+8 DIA 2.503"-1 DIA 2.000"+1 DIA 45° .156"+8 DIA 2 HOLES OIL GROOVE ACROSS THRUST FACES .156" WIDE X .031" DEEP. SELECT CRANKSHAFT TO GIVE .0015" TO .002" CLEARANCE. MATERIAL SIZE 1.500"-2 FITTING SIZE 1.504"-2 MACHINING SIZE .750-4 .125" WIDE X .031 DEEP .062" WHITE METAL PRESSURE CAST. S.C.5. .187"+8 WIDE X .062" DEEP .375"+1 DIA DOWEL HOLE. 1.125"+1 SECTION AA.{D. Abbot-Anderson} THE ROVER CO. LTD. COVENTRY. CHECKED DATE 8. 3. 26. PART No. 03/26 | ||