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 of main bearings and alterations of liners for a specific chassis.
| Identifier | ExFiles\Box 146\2\ scan0113 | |
| Date | 9th February 1937 | |
| MAIN BEARINGS REPORT UPON SINKAGE OF BEARINGS & ALTERATIONS OF LINERS DATE: 9/2/37 CHASSIS n): B-174 GA. OWNER: Mr Grasurel JOB N°: 36093. MILEAGE: 14026 Kms. 'A' joint faces upper half. MAIN BEARINGS 'B' joint faces lower half. TABLE DATA (Columns 1 to 7): Amount of sinkage of: A.{Mr Adams} upper half: .003, .004, .004, .002, .003, .003, .005. Amount of sinkage of B. lower half: NIL, .003, .003, .002, .003, .002, .002 TYPE OF LINER: Original liners were in steel with Halls metal facings Original thickness of liner: They varied from .100 to .103" Fitted RR. 56 liners: Yes to 'Mains' & big end bearings. Amount of step left on upper face of liner: .003, .004, .004, .002, .003, .003, .005. Thickness of liner not including STEP: .098., .097, .096., .096, .076, .077., .095 Amount machined C. off lower cap faces: NIL, .003., .003., .002, .003., .002, .002. FINAL BEARING CLEARANCE. .0025 to .003. Initials: VA | ||