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).
Specification and recommendation sheet for a Borg & Beck clutch for an experimental vehicle type.

Identifier  ExFiles\Box 130\3\  scan0071
Date  27th March 1939
  
FORM G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 8/B.
BORG & BECK CLUTCHES.
BORG & BECK COMPANY, LTD. TACHBROOK ROAD, LEAMINGTON SPA, WARWICKSHIRE.
Index
MAKE OF VEHICLE: Rolls-Royce
TYPE: Experimental
No.
MODEL
YEAR
SERIAL No.
Date: 27.3.39

SPECIFICATION.

Weight Total Loaded Weight of Vehicle
Pay Load
Engine Make of
Model
Class (Petrol or Diesel)
Bore
Stroke
Number Cylinders
Torque Maximum: 260 Lbs., Ft., and at 1750 Revs. Max. Revs. of Engine 5000
Flywheel Weight
Outside Diameter
Radius of Gyration
Engine Mounting If Engine is Flexibly mounted and Articulates round Crankshaft Axis state Maximum Amount of movement at 2ft. Radius
Gear Box Make: R.R.
Model
Unit or Independent Construction: Unit
Actuation Ratio of Disengaging Leverage: 8.85/1
Method of Actuation: Manual
If Automatic Type
Drawings Customer Installation Drawings attached Nos. and Description
Remarks:

Data obtained

BORG & BECK COMPANY'S RECOMMENDATIONS.

Type: 11-C.F.
Spec. No.: BB.472
Release Bearing
Customer Spline: 1 1/4" x 10
Disc: Standard Spring Special Yellow
Springs Wt. Designated: 150/155 lbs. (Red)
Quantity: 9
Drawings and Installation: 23000 (with B&B Plate)
Actuation
Recommendations Dates Made: 27th March, 1939.
Cuy/iggs
Remarks:
Release bearing pressure = 310 lbs.
Does not take into account Centrifugal build up.

CWH/EFB
AUTOMOTIVE DIVISION.
  
  


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