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 drawing for a Cam.

Identifier  ExFiles\Box 28\2\  Scan060
Date  8th December 1926
  
ALTERATION

R TO BE STAMPED ON THIS END AFTER OP 1
NOTE- THIS HOLE AFTER HEAT TREATMENT TO BE 1.125 DIA +.0005 -.003
KEYWAY & SERRATIONS 6 TIMES FULL SIZE
NOTE PARTICULARLY THE CENTRE FROM WHICH THIS RADIUS IS TAKEN.
CASEHARDENED
DEPTH OF CASE TO BE 1/32
(SCLEROSCOPE TEST 88-95)
BRINELL TO BE 560 to 620
STANDARD CAM PROFILE
170° CIRCULAR MOVEMENT RH{R. Hollingworth}
65° ANGULAR MOVEMENT
ALL DIMENSIONS NOT LIMITED TO BE +.010 -.010
TO BE MACHINED WHERE MARKED S
EXTRA FINE FINISH WHERE MARKED f
GROUND WHERE MARKED G
MACHINED ALL OVER
ADAMANT ENGINEERING C° Ld LUTON.
CAM
MATERIAL: NICKEL CHROME CASEHARDENING STEEL
TYPE: R2
TRACED: CA
CHECKED: CB
APPROVED:
No. OFF PER SET: V
Dimensions and Tolerances:
3.625 +-005, 1.8125 +-00, 32½°, 32½°, CUT TRACK .385, 67° 30', 90°, .25 +.001, 2.75 DIA +.005, 1.875 DIA, 1/16R, 3.4687 +.000 -.005, .80, 3° 32-45', 2.5312 R +-005, .7031 +.005 -.000, .0937 +-005, 1.125 DIA B BROACH, .25 +.002, 1/32, 20° +-15', 22° 30'
  
  


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