Rolls-Royce Archives
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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).
Blueprint for a connecting rod top half bearing for Dennis Bros.

Identifier  ExFiles\Box 115\4\  scan0007
Date  21th February 1939
  
SHEET SIZE No: C 1
DRG. No: B P 0144
.015 RAD
.255"
.257"
30°
FIRST BORE
3.072 DIA
.227
.219 DIA
.250"
45°
48°
.125"
2.503
2.502
ALLOWS .005 FOR FACING WHEN IN POSITION
.251
.250
.187
.195
1.815
1.813
3.6278
3.6292 DIA.
-BEARING SHELLS TO BE PLACED IN
BIG END (3.625+.001 DIA) WITH .003 SHIM
BETWEEN JOINT FACES OF ROD & BEARING
& THEN FINE BORED TO 3.1295+.0005 DIA-
MATL A.C.9
CASTING No JP 3000-1
MARK ON PAT No 4702AB-4722AB
O/DIA WAS 3.627 / 3.626
16/3/39
JOINT FACE HEIGHT ADDED.
BORE DELETED
RADIAL THICKNESS ADDED
12/4/39
WHEN MEASURED
IN GAUGE
3.6278
WELLWORTHY
PISTON RINGS
LIMITED
TOOL OR PART
CON-ROD BEARING FOR
DENNIS BROS (TOP HALF)
PART No X 1249
MACHINE NAME & No
DRAWN A
CHECKED J.N.
ADDITIONAL SHEETS
DATE 21-2-39
SHEET SIZE & No C
DRG. No: BP 0144
  
  


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