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).
Technical drawing for a Roller (Lead .7').
| Identifier | ExFiles\Box 153\2\ scan0057 | |
| Date | 16th May 1936 | |
| ALTERATION Location Date Initial DETAIL FIGURES SHOW ALTERATIONS TO TOOTH FORM SHOWN ON ROLLERS RETURNED FROM ROLLS-ROYCE AND MODIFIED WH-13476 1.8603" +.003 TO SHARP CORNERS (1.8581") .921 DIA +.001 -.000 CRS (.923) .850 DIA +.005 -.000 7"/16 DIA .921 DIA +.001 -.000 CRS (.9265) .1220R +.0005 -.000 G 32R 64R 32R 1.075" (+.085) 43°20' 43°22' ±5' SCALE:- 4 TIMES FULL SIZE RAD INCORRECT FORM FALLING AWAY AT BOTTOM APPROX .004 FULL SIZE ALL TOOTH FACES MUST RUN RADIALLY TRUE WITH BALL RACES WITHIN .0025 INDICATOR READING FINISHED PART MUST BE THOROUGHLY DE-MAGNETIZED THIS DRWG MUST NOT BE MARKED TO TO BE CASEHARDENED DEPTH OF CASE TO BE 1/32 SCLEROSCOPE TEST 88-95 DO 1.255" ±.0025 (1.2565) 5° (.302) 16°08' 16°11' 18°15' .500 DIA BALL .296 +.001 -.000 (.297) .1220R +.0005 -.000 13°20' 13°22' 115°:080 All Dimensions not Limited to be ±.010 Machine where Marked f Extra Fine Finish where Marked ff Ground where marked G SCALE: ADAMANT ENGINEERING CO. LTD LUTON. ROLLER. (LEAD .7") TYPE SPEC MATERIAL NICKEL CHROME CASEHARDENING STEEL No. Off per Set 1 Machine all Over Drawn: Rhl Checked: Approved: Date: 16-5-36 M22167 | ||