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 of a Borg & Beck Type 10A-1 model clutch assembly.
| Identifier | ExFiles\Box 128\2\ scan0120 | |
| Date | 28th January 1932 guessed | |
| SHEET 3 12 3/8 O.D. OF COVER 11.625" ±.002" B.C. BORG & BECK CO LTD LEAMINGTON SPA TYPE 10A-1 MODEL PATENT PENDING INITIAL ENGAGED POSITION WEAR-IN POSITION RELEASE POSITION 1/8" C'BORE RECOMMENDED 1 1/4 S.A.E. 10 SPLINES SHAFT DIMENSIONS 1.247" +.000/-.001" .191" ±.001" 1.006" Borg & Beck METHOD OF RETAINING THROWOUT BEARING TO THROWOUT FORK 2 5/16" 9/16" 1/16" 5/16" .554" DIA. 2 7/8 MAX. 1/2" 6-HOLES .337" +.0015/+.001 REAM EQUALLY SPACED SPECIFICATION Let us quote for normal services. If to suit Truck or Bus service add 10% to Torque capacity. These prices are subject to occasional slip. 1100 lbs. Maximum spring pressure obtainable with .03 in. sq. spring wire. Clutch release lever ratio 8:1. Release bearing travel required to obtain .024" plate sep'n is .096". Wear-in space to be provided in addition. Recommended release pedal ratio offers... Pressure plate requires 12 holes tapped... | ||