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 sinkage and alteration of main bearing liners for chassis B-53 GA.
| Identifier | ExFiles\Box 146\2\ scan0125 | |
| Date | 1st February 1937 | |
| MAIN BEARINGS Report upon a sinkage of bearings and alteration of liners. CHASSIS N⁰. B-53 GA OWNER: Mʳ. Saint JOB N⁰. 36055 MILEAGE: 12792 'A' Joint faces upper half: MEAN BEARINGS: 'B' Joint faces lower half I 2 3 4 5 6 7 Amount of sinkage of upper half { A.{Mr Adams} .004 .004 .003 .005 .003 .001 .003 Amount of sinkage of lower half { B. .002 .003 .001 .006 .004 .004 .004 TYPE OF LINER. { Original liners were steel with Hall's metal facings Original thickness of liner { - Fitted RR. 56 liners { Yes to mains and big ends. Amount of step left on upper face of liner { .004 .004 .003 .005 .003 .001 .003. Thickness of liner not including Step { .098 .098 .098 .096 .098 .097 .097 Amount machined off lower cap faces { C. .002 .003 .001 .006 .004 .004 .004. FINAL BEARING CLEARANCE. FROM .0025" to .003" V.D 1/2/37 | ||