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).
Installation drawing for a 10 A6. Clutch from Borg and Beck Co. Ltd.
| Identifier | ExFiles\Box 129\2\ scan0068 | |
| Date | 19th September 1935 | |
| 12 3/8" DIA. 11.627" / 11.623" P.C. DIA. BORG & BECK CO, LTD. LEAMINGTON SPA. PART NO 42851 BEARS UNDER ONE OR MORE OF THE FOLLOWING BRITISH PATENTS. 1874033. 375473. 244243. 385536. 292943. 385537. 315748. 370218. 323310. 370382. 326759. 378415. 370606. 382306. 13702.34. 31611.32. NOTE:- Flywheel friction face should be .35/.45 Carbon Steel, alternatively of good quality close grained cast iron. The friction face should be flat, smooth and polished and should not "run out" more than .003", also the face on flywheel to which the bolting flange is attached should not "run out" more than .003". It is important to see that the crank-shaft and clutch shaft are co-axial in unit construction. N.B. - Care must be taken to see that the driven plate is assembled in correct position, as illustrated, i.e., with chamfered splane of hub towards the rear. Oil, Grease or Paraffin must not be allowed under any circumstances to be brought in contact with friction face. This Clutch is of the non-adjustable type. Therefore, some adjustment must be provided on the Pedal mechanism to compensate for friction facing wear. RECOMMENDED BEARING SKEFKO 1/111391 SELF SEALING 20 M/M x 47 M/M x 14 M/M.{Mr Moon / Mr Moore} NOT SUPPLIED BY BORG & BECK RIGID TYPE DRIVEN PLATE BELOW SPRING TYPE DRIVEN PLATE ABOVE PILOT DIA: OF SETSCREW TO ENTER COUNTER-BORE 'B' 6 HOLES .376"/.3775" DIA: EQUALLY SPACED. 3 DRAIN HOLES 3/16 DIA: EQUALLY SPACED MIN: CLEARANCE TYPICAL FLYWHEEL ONLY SHOWN. RADIUS OF GYRATION = 4 INCHES. THIS CLUTCH IS SUITABLE FOR A MAX: SPEED OF 5000 R.P.M. RELEASE POSITION INITIAL ENGAGED POSITION WEAR IN "POSN." ALTERNATIVE THROWOUT FORK ARRANGEMENT TO RELEASE CLUTCH APPLY PRESSURE IN THIS DIRECTION TO RELEASE BEARING 1 1/4" DIA: S.A.E. 10 SPLINE SHAFT DIMENSIONS 1 3/8" DIA: S.A.E. 10 SPLINE SHAFT DIMENSIONS NOTE: CENTRE OF TRUNNION SHOULD BE PREFERABLY 1/16 ABOVE ℄ OF SHAFT WHEN LEVER IS IN THE VERTICAL POSITION WITH CROSS SHAFT IN APPROX POSITION AS SHOWN. CLEAR THIS FOR INSTALLATION NOTE: CENTRE OF CROSS SHAFT SHOULD BE AS NEARLY VERTICAL WITH TRUNNION CENTRE AS POSSIBLE. NOTE. THROWOUT FORK & CROSS SHAFT MUST CLEAR CLUTCH DURING ROTATION. METHOD OF RETAINING THROWOUT BEARING TO THROWOUT FORK SALES DEPARTMENT. TITLE BLOCK: BORG AND BECK CO. LTD. LEAMINGTON SPA. ENGLAND. DESCRIPTION: INSTALLATION 10 A6. CLUTCH. PART No. 42850/12 DATE ISSUED: 19 SEP 1935 DRAWN: J.C.V. 19.4.35 TRACED: O.L. 24.7.35 CHECKED: P.D.L. PASSED All Dimensions ± .015 Unless Otherwise Stated. All Corners Free From Fraise. Work to Dimensions. Do Not Scale This Print supersedes any issued previous to latest alteration date. It is Our Property and must be returned upon request. This Part must not be sold to any other concern. F = Good Finish, O = Rough, G = Ground, ⊕ = Machine All Over | ||