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).
Test report on Anglo-American Oil Co. Ltd. 'Expee 160 Compound' gear lubricant.
| Identifier | ExFiles\Box 145\3\ scan0131 | |
| Date | 6th May 1937 | |
| TEST REPORT No. 753.B. (6). Test on the Anglo-American Oil Co. Ltd. 'EXPEE 160 COMPOUND' Gear Lubricant. OBJECT OF TEST: To try out extreme pressure oils under conditions of service of Automobile Work and note the effect of the lubricant on the bearings, and particularly brass cages, arising out of requests by Messrs. Austin Motors Ltd. and Wolseley Motors Ltd. See our letter to Austin (CGHR/BO) Jan.12th.1937, and Mr. Hickling's report on visit to Wolseley Motors (13th Jan.) dated 21st Jan.1937, ref: FOH/AD. See also Anglo-American Oil Co. correspondence in Tech. Office file and special "Excess Pressure Lubricants" file. BEARINGS: 5/MDJT.30. (brass cages). LOAD: 1050 lbs. Journal. 1420 lbs. Thrust. SPEED: 4500 r.p.m. DURATION: 300 hours. LUBRICATION: Anglo-American Oil Co. "Essoleum Expee 160 Compound" Excess Pressure Gear Lubricant (pump feed). See drg. T.R.15.B. for the arrangement of rig and oiling system. MAXIMUM TEMP. RISE: 84°F.{Mr Friese} NORMAL TEMP. RISE: 80°F.{Mr Friese} SHOP TEMPERATURE: 72°F.{Mr Friese} GENERAL REMARKS RE TEST: A pump feed was fitted to obtain a churning effect of the oil, the lubrication of the bearing itself being a drip feed controlled by a tap, the bulk of the oil being by-passed into the reservoir. Temperatures were taken on the outside of the housing, and were satisfactory considering the loads and speeds, as also was the condition of the 5/MDJT.30 bearing, this showing heavy tracking and signs of very slight pitting, but this could be expected owing to the severe conditions of the test. The oil after a run of 300 hours was found to be in good condition, and all the working parts had been effectively lubricated. The interior of the bearing, with the exception of the balls and those parts of the tracks on which the balls had run, was coated with a gummy deposit from the oil, but this had not had any detrimental effect on the bearing. The outer diameter and faces of the outer race showed signs of staining. CONCLUSIONS DRAWN FROM TEST: This oil would be quite satisfactory as a ball or roller bearing lubricant in similar applications on automobile work, always providing that no factors can be introduced which are likely to cause chemical action in the lubricant and subsequent corrosion of the bearing parts with which it comes into contact. In this connection it should be noted that preliminary staining had occurred. | ||