Detailed engineering drawing of a main intermediate top half bearing.
| Identifier | ExFiles\Box 116\1\ scan0089 | |
| Date | 18th December 1933 | |
| DRAWING NOT TO BE SCALED. TOP LEFT AREA: SHELL A13759P FOR 1ST, 2ND, & 3RD, STDS. L.P.T.B. =A13773P FOR 4TH, 5TH, & 6TH, STDS. L.P.T.B. DRILL 13/64" DIA X 5/8" DEEP 1 CHAMFER AT 45° EACH END REMOVE CORNERS DIMENSIONS: 105 DIA. +.03/+.05 (PART No A13759 ONLY), 48, 48, 7, 116 CRS, 15.5, 31 ± .25. MANUFACTURER STAMP: THE ASSOCIATED EQUIPMENT Co. LTD. SOUTHALL, MIDDLESEX MARGIN STAMP: A-13759 CENTER AREA: BORE IN POSITION TO B DIA. +.123/+.102 WHEN BOTTOM HALF OF BEARING IS LEAD BRONZE. BORE IN POSITION TO B DIA. +.08/+.02 WHEN TOP & BOTTOM HALVES OF BEARING ARE WHITEMETAL. JOINT FACE MUST BE PERFECTLY FLAT & TO SIZE 2" DIA CUTTER, 45° 2 HOLES 3/16" DIA. JIG DRILLED. 17/64" DIA HOLE JIG DRILLED HOLE 3/16" DIA +.0005 x 5/8" DEEP SINK CUTTER TO DEPTH OF 2.5 16 HALVES OFF. MATERIAL:- HIDUMINIUM AC.7. BORE MUST BE CONCENTRIC WITH OUTSIDE OF SHELL BEARING MUST BE SCRAPED & BEDDED TO CRANKCASE ALTERATIONS BOX (TOP RIGHT): ALL GOODS MUST BEAR OUR PART No., OUR DATE LETTER AND MAKER'S TRADE MARK. ALTERATIONS OLD PART No U 66941 / VARIOUS ALTERATIONS MADE 1) REF TO 6th STDS ADDED / I-634 / 1-6-34 2) DOWEL HOLES ADDED ON JOINT FACE / I-2994 / 16-7-34 3) DIA 'B' LIMITS FROM +.02 TO +.030 / +.017 TO +.050 / I-3053 / 1-9-34 4) BORE LIMITS FROM +.075 TO +.123 / +.050 TO +.102 / I-3218 / 12-12-34 5) 2 HOLES 1/16 DIA ADDED, ALTERNATIVE LIMITS ON DIA 'B' ADDED / I-4302 / 1-11-36 6) WHITEMETAL FROM A18 / I-4347 / 14-12-36 7) LIMIT ON 105 DIA. FROM +.05 FOR ALL PART Nos EXCEPT A13759 / T.4354 / 18-12-36 ADDITIONAL NOTES IN ALTERATIONS BOX: SHELL PART Nos ADDED L.P.T.B. A.E.C. 19-3-37 / 15-3-37; WHITEMETAL FROM A27 / T-4979 / 8-12-37. BOTTOM AREA: TITLE: MAIN BEARING / INTERMEDIATE / TOP HALF APPROVALS BOX (ST. {Capt. P. R. Strong} 0513): DRAWN: V.M.K. TRACED: M.H. CHECKED: [initials] PASSED: W.M. DATE: 18.12.33 FINISH SYMBOLS: ⊕ MACHINED ALL OVER, f MACHINED, G GROUND FIT SYMBOLS: B FOR HOLES, P PUSH FIT, D DRIVING FIT, F FORCE FIT, X RUNNING FIT NOTES: NEWALL STANDARD LIMITS ARE USED ONLY WHERE LETTER SYMBOL GIVEN. MACHINED DIMENSIONS WITHOUT LIMITS TO BE WITHIN +.010 / -.010 OF GIVEN SIZE TABLES: PART NUMBER TABLE: STD | DIA | B DIA | F DIA | PART No 1ST | 88 | 85 | 84.4-84.5 | U.98598 / A.13759 2ND | 88 | 84.5 | 83.9-84.0 | U.98598 / A.13759B 3RD | 88 | 84 | 83.4-83.5 | A.13759C 4TH | 86.5 | 83.5 | 82.9-83.0 | A.13773 5TH | 86.5 | 83 | 82.4-82.5 | A.13773B 6TH | 86.5 | 82.5 | 81.9-82.0 | A.13773C MATERIAL LIST No. R10W: MATERIAL: 1/2 SHELL SHELL: 4 3/4" O {Mr Oldham} /D x 4 1/8" I/D LG. WHITEMETAL: A16 209 CAST IN MODEL No. BOX: MODEL No.: OFE, 0761 No. OFF: 4 PART No BOX: PART No: U.98598 (A.13759 is crossed out) | ||
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).