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).
Specification table for various crankshaft models and their applications.
| Identifier | ExFiles\Box 14\2\ Scan051 | |
| Date | 27th November 1929 | |
| P.I / P.II 7010 50 CRANKSHAFTS TABLE: | PIECE No | SHAPE OF WEB | DIA OF JOURNAL | DIA OF CRANKPIN | SPRING DRIVE END | REAR END THRUST | REMARKS. | |---|---|---|---|---|---|---| | E75216 | PARALLEL | 2.625 | 2.125 | STANDARD | STANDARD | UP TO "E" SERIES | | E75413 | " | " | " | " | NEW TYPE No 5 | EAC 7 | | E76546 | 3.300 OVAL | " | 1.875 | (LOW INERTIA) | " | TUBULAR RODS 10EX EAC14 CANCELLED. | | E76866 | PARALLEL | " | 2.125 | " | STANDARD | EAC8 CANCELLED. | | E76878 | 4" OVAL | " | " | " | NEW TYPE No 5. | EAC 8. EAC14 | | E76950 | 3 1/2 OVAL | " | " | STANDARD | " | CONTINENTAL. | | E76999 | 3 1/2 OVAL | " | " | " | STANDARD | 1ST 50 CHASSIS ON F.2 SERIES. LAST 150 CHASSIS ON F.2 SERIES. & G2A | | E77245 | 4" OVAL | " | " | " | No5 L.C | | | E77495 | 4" OVAL | " | " | " | STANDARD | SERIES G.2.B2 & H.2. | | E78456 | 4" OVAL | " | " | " | STANDARD | SERIES J2, & K2.A | } INTERCHANGE | E78648 | 4" OVAL | " | " | " | " | BALANCE WEIGHTS | } INTERCHANGE | E79351 | 4" OVAL | " | 2.375 | " | " | LARGER CRANKPINS. | } INTERCHANGE | E79640 | 4" OVAL | " | " | LOW INERTIA | " | NITRALLOY | } INTERCHANGE | E79675 | 4" OVAL | " | " | LOW INERTIA | " | | } INTERCHANGE | E79738 | 4" OVAL | " | 2.125 | STANDARD. | " | SERIES K2B, L2, | STAMPED TEXT: 27 NOV 1929 DERBY. HANDWRITTEN NOTE (right edge): 27/11/29 | ||