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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).
Measurements of big-end bearings for chassis B.125 J.Y. after 1061 miles.

Identifier  ExFiles\Box 114\3\  scan0018
Date  6th February 1939
  
MEASUREMENTS OF BIG-END BEARINGS.

CHASSIS B.125 J.Y. 1061 miles

Original shaft diameter 1.9880"
Original Big-end diameter 1.9910" } measured 4:1:39.

Vertical E Diagonals smallest dia. clearance
No: 1. 1.9890" 1.9890" 1.9880" 1.9880" Nil
No: 2. Bearing torn up, not measureable.
No: 3. 1.9910" 1.9905" 1.9880" 1.9880" Nil
No: 4. Bearing broken right out.
No: 5. Bearing torn up, not measurable.
No: 6. 1.9910" 1.9890" 1.9905" 1.9890" .001"

[Signature]
6. 2. 39
  
  


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