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).
Drawing of a con-rod bearing (bottom half) for Dennis Bros.
| Identifier | ExFiles\Box 115\4\ scan0006 | |
| Date | 21th July 1939 | |
| DRG. N.o SP.{Mr Spinney} 0145 SHEET SIZE N.o C WHEN MEASURED IN 3.6273 GAUGE O/D.A WAS 3.625"/3.626" 16/3/39 JOINT FACE HEIGHT ADDED BORE DELETED. RADIAL THICKNESS ADDED .125 .015 RAD .255"/.257" FIRST BORE 3.072 DIA 45° .187 .251/.250 DIA 2.503/2.502 ALLOWS .003 FOR FACING WHEN IN POSITION 3.6278"/3.6282" -BEARING SHELLS TO BE PLACED IN BIG END BORE +.001 DIA WITH .003 SHIM BETWEEN JOINT FACE OF ROD & BEARING & THEN FINE BORED TO 3.1295 +.0005 DIA- MATL. A.C.9 CASTING N.o JP3000-1 MARK ON PAT. Nos 470246 - 472248 WELLWORTHY PISTON RINGS LIMITED TOOL OR PART: CON-ROD. BEARING FOR Dennis BROS. (BOTTOM HALF.) PART N.o: X1249 DATE: 21-7-39 SHEET SIZE & N.o: C DRG. N.o: BP.0145 | ||