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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).
Standardisation of steel shells for main crankshaft bearings.

Identifier  ExFiles\Box 14\2\  Scan002
Date  22th September 1926
  
H3
RR 755 (10M) (DB{Donald Bastow - Suspensions}130 12-9-24) MS 301225
Handwritten: X7010
COMPLETED 27.10.26
STANDARDISATION of CHASSIS PARTS.
Date 22.9.26

Box 1:
Description of Parts: STEEL SHELLS FOR MAIN CRANKSHAFT BEARINGS.
Origin: To improve reliability.

Box 2 (Left):
Experimental Test Report:
9000 miles in France fitted to 12-EX.
Bearings with steel shells are standard on aero engines.
19-12-24

Box 2 (Right):
Road Test Report:
No trouble or failure with bearings during the test.

Box 3 (Right):
X No. 7010.
Drawing No.
Part List
A [X] Scrap and replace at all costs including Chassis already delivered to customers.
B [ ] Scrap and replace on Chassis in works.
C [ ] Scrap present stock and replace on all Chassis not yet handed to test.
D [ ] Use existing stock Alteration effective on future Chassis.

Cost of Parts in Works which will be scrapped if commenced on:-
Series ....... £ ......
Series ....... £ ......
Series ....... £ ......

Box 4 (Left):
Weight of Old Part:
Weight of New Part:
Difference per Car:

Box 4 (Right):
Cost of Old Part: £ 2. 0. 9d.
Cost of New Part: £ 2. 12. 9d.
Difference per Car: £ 12. 0d. increase.

Signature of Mr. De LOOZE that above is correct.

Signatures Table:
SIGNATURES, DATE, REMARKS
[Signature] C.W.B., 24.9.26, Agreed., CWB.
MR. B. JOHNSON, 27.X.26, agreed, [illegible]
MR. ROYCE, 25.9.26, Agreed., FHR.
MR. WORMALD, 23.9.26, Agreed., Wor.{Arthur Wormald - General Works Manager}
MR. ROWLEDGE, 27.9.26, Agreed., RG.{Mr Rowledge}
MR. DAY, 27.9.26, Agreed., Da.{Bernard Day - Chassis Design}
MR. BAILEY, 11.10.26, Agreed., BY.{R.W. Bailey - Chief Engineer}
MR. PLATFORD, 23.9.26, Agreed., EP.{G. Eric Platford - Chief Quality Engineer}
MR. ELLIOTT, 27.9.26, Agreed., E.{Mr Elliott - Chief Engineer}
MR. NORTHEY, 24.9.26, Agreed. c, PN.{Mr Northey}
MR. HIVES, 22.9.26, Agreed., Hs.{Lord Ernest Hives - Chair}

STAMPS:
Large green stamp across center: PHANTOM
Purple stamp: RECEIVED [illegible]
  
  


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