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Distortion test results for a forked connecting rod and bearing under a 5,000lb load.


Identifier  ExFiles\Box 93\1\  scan0125
Date  3rd December 1936
  
PH III FORKED CONNECTING ROD EX21235
DISTORTION TEST LOAD APPLIED 5,000lb
BEARING EX22402/3

ROD DEAD 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 | 2.4965 | 2.5012 | 2.5007 | 2.4994 |
| AFTER LOADING | 2.5019 | 2.4995 | 2.4968 | 2.5025 | 2.4985 | 2.4975 |
| DISTORTION | +0.0003 | +0.0003 | -0.0012 | +0.0013 | -0.0022 | -0.0019 |

.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 | +0.0012 | -0.0023 | +0.0017 | -0.0033 | +0.0033 | +0.0015 |

.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 | -0.0017 | -0.0003 | +0.0001 | +0.0001 | -0.0002 | +0.0003 |

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).


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