Rolls-Royce Archives
         « Prev  Box Series  Next »        

Distortion test results for a Phantom III forked connecting rod and bearing under a 5000lb load.


Identifier  ExFiles\Box 93\1\  scan0124
Date  3rd December 1936
  
PH III FORKED CONNECTING ROD EX 21235
'DISTORTION TEST' LOAD APPLIED 5000lb
BEARING EX 22402/3

ROD B/END SIZE ON TEST BAR.
| | A to A | B to B | C to C | E to E | D to D | F to F |
|---|---|---|---|---|---|---|
| BEFORE LOADING | 2.5015 | 2.4998 | 2.4968 | 2.5012 | 2.5007 | 2.4994 |
| AFTER LOADING | 2.5018 | 2.4995 | 2.4968 | 2.5025 | 2.4985 | 2.4975 |
| DISTORTION | +.0003 | -.0003 | -.0012 | +.0013 | -.0022 | -.0019 |

.0025" DIAMETRICAL CLEARANCE ON TEST BAR.
| | A to A | B to B | C to C | E to E | D to D | F to F |
|---|---|---|---|---|---|---|
| BEFORE LOADING | 2.5018 | 2.4995 | 2.4968 | 2.5025 | 2.4985 | 2.4975 |
| AFTER LOADING | 2.503 | 2.4972 | 2.4985 | 2.4992 | 2.5018 | 2.499 |
| DISTORTION | +.0012 | -.0023 | +.0017 | -.0033 | +.0033 | +.0015 |

.0025" DIAMETRICAL CLEARANCE BEARING IN POSITION
| | A to A | B to B | C to C | E to E | D to D | F to F |
|---|---|---|---|---|---|---|
| BEFORE LOADING | 2.1257 | 2.1244 | 2.124 | 2.1249 | 2.1243 | 2.1239 |
| AFTER LOADING | 2.124 | 2.1241 | 2.1241 | 2.125 | 2.1241 | 2.1242 |
| DISTORTION | -.0017 | -.0003 | +.0001 | +.0001 | -.0002 | +.0003 |

Diagram annotations:
DOTTED LINE SHOWING BEARING IN POSITION
JOINT IN BEARING
  
  
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).


Copyright Sustain 2026, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙