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).
Blueprint for a special greased seal bearing.
| Identifier | ExFiles\Box 114\1\ scan0230 | |
| Date | 1st September 1937 | |
| 28 Retraced 3-3-38 27.5 m/m To -.05 m/m 1.053" 21 m/m To -.05 m/m 2.616" Dia. 1.5312" Dia. To -.0005" 48.1 m/m Dia. 80 m/m Dia. To -.013 m/m 2 m/m R 1.5 m/m R.{Sir Henry Royce} 9 - 7/16 DIA. BALLS. NO GAP TYPE. BRG. No: N2943 DESC.: SPECIAL GREASEAL BEARING The Hoffmann Manufacturing Co., Ltd. Drawn K.H.R. Passed M.M Traced L.A.S. Checked R.G.L Date 1-9-37 Drg No 41-477C | ||