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).
Test report detailing main bearing and crankshaft dimensions before and after a 15,000-mile wear test.
| Identifier | ExFiles\Box 97\4\ scan0199 | |
| Date | 24th November 1938 guessed | |
| MAIN BEARINGS DIMENSIONS UNIT Nọ B III Nọ.5. PASSED TO TEST:- COMPLETED TEST:- RUNNING TIME:- 29 hrs TEST BED MILEAGE :- 15,000 CRANKSHAFT: EX. 30059 MA= .4% CARBON BRINELL - 321 TEST PIECE Nọ: MAIN BEARINGS: VANDERVELL MATL: W/MT. TABLE DATA: ROW 1: BEARING No. 1. BEARINGS: AA{D. Abbot-Anderson} (Before 2.500, After 2.499, Wear .001), BB (Before 2.500, After 2.4992, Wear .0008), OVALITY (After .0002, Wear .0002) C/SHAFT: Before 2.498, After (2.4978 / 2.4976), Wear (.0002 / .0004) CLEARANCE: Before .002, After (.0012+ / .0016+), Wear (.0008 / .0004) ROW 2: BEARING No. 2. BEARINGS: AA{D. Abbot-Anderson} (Before 2.500, After 2.500(+.0005), Wear NIL), BB (Before 2.500, After 2.500, Wear NIL), OVALITY (After .0005, Wear .0005) C/SHAFT: Before 2.498, After (2.4982 / 2.4973), Wear (-.0002 / .0007) CLEARANCE: Before .002, After (.0029 / .0024), Wear (.0009 / .0007) ROW 3: BEARING No. 3. BEARINGS: AA{D. Abbot-Anderson} (Before 2.500, After 2.500, Wear NIL), BB (Before 2.500, After 2.4995(-.0005), Wear .0005), OVALITY (After .0005, Wear .0005) C/SHAFT: Before 2.498, After (2.4978 / 2.4972), Wear (.0002 / .0008) CLEARANCE: Before .002, After (.0022 / .0023), Wear (.0002 / .0003) ROW 4: BEARING No. 4. BEARINGS: AA{D. Abbot-Anderson} (Before 2.500, After 2.500, Wear NIL), BB (Before 2.500, After 2.500, Wear NIL), OVALITY (After NIL, Wear NIL) C/SHAFT: Before 2.498, After (2.4979 / 2.4970), Wear (.0001 / .0010) CLEARANCE: Before .002, After (.0021 / .0030), Wear (.0001 / .0010) ROW 5: BEARING No. 5. BEARINGS: AA{D. Abbot-Anderson} (Before 2.500, After 2.500, Wear NIL), BB (Before 2.500, After 2.4997(-.0003), Wear .0003), OVALITY (After .0003, Wear .0003) C/SHAFT: Before 2.498, After (2.4974 / 2.4970), Wear (.0006 / .0010) CLEARANCE: Before .002, After (.0024 / .0027), Wear (.0004 / .0007) ROW 6: BEARING No. 6. BEARINGS: AA{D. Abbot-Anderson} (Before 2.500, After 2.4998, Wear .0002), BB (Before 2.500, After 2.500, Wear NIL), OVALITY (After .0002, Wear .0002) C/SHAFT: Before 2.498, After (2.4975 / 2.4972), Wear (.0005 / .0008) CLEARANCE: Before .002, After (.0023 / .0028), Wear (.0003 / .0008) ROW 7: BEARING No. 7. BEARINGS: AA{D. Abbot-Anderson} (Before 2.500, After 2.4992, Wear .0008), BB (Before 2.500, After 2.4995(-.0005), Wear .0005), OVALITY (After .0003, Wear .0003) C/SHAFT: Before 2.498, After (2.4978 / 2.4976), Wear (.0002 / .0004) CLEARANCE: Before .002, After (.0014+ / .0019+), Wear (.0006 / .0001) GAUGE SIZE:- | ||