Table detailing steering pivot pin loads for various chassis models.
| Identifier | ExFiles\Box 9\7\ 07-page110 | |
| Date | 11th January 1938 guessed | |
| STEERING PIVOT PIN LOADS. Chassis. | Weight on one front wheel. | Journal load. lbs. | Thrust load. lbs. | Journal load per sq.inch. | Thrust load per sq.inch. | Journal friction torque. lbs.ins. | Thrust friction torque. lbs.ins. ---|---|---|---|---|---|---|--- 25/30. | 1020 | 495 | 1020 | 364 | 1035 | 84 | 129 Ben.II. | 860 | 486 | 860 | 486 | 675 | 60 | 105 Ph.III. | 1350 | 792 | 1350 | 753 | Ball thrust bearing. | 98 | 0 Wraith. | 1080 | 1084 | 1080 | 960 | 780 | 152 | 148 Ben.III. | 930 | 903 | 930 | 930 | 863 | 113 | 124 Handwritten notes: 300 213 --- 87 (HC) 237 165 --- 72 | ||
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).