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).
Design and lubrication of the India 3 adjustable carrier wheel.
| Identifier | WestWitteringFiles\R\January1928-March1928\ 177 | |
| Date | 31th March 1928 | |
| H.{Arthur M. Hanbury - Head Complaints} FROM E.{Mr Elliott - Chief Engineer} C. to BJ. HS.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} ORIGINAL E2/M31.3.28. Y5170 (struck through) Y411 (struck through) Y5000 INDIA 3. ADJUSTABLE CARRIER WHEEL. Please find herewith a blueprint of LeC. 2539., shewing the above. The carrier wheel is a steel one as now. It has not been made with a loose centre like EAC.10. because the fixing flange nuts require a large pitch circle to span the oil gallery pipe opening, and hence leave insufficient room between the web holes and the edge of the wheel. On the present 20HP. engine the carrier wheel lies on the same centreline as the camshaft and pump wheels. The centre of the adjustable wheel has therefore been moved down about 1.25" below the present centre. Regarding the lubrication of the hub bearings we are relying on splashed oil collected by a pocket formed on the crankchamber. There should be an ample supply as the pump overflow discharges directly on the adjacent gearing. We prefer fig. 1. method of feeding the oil from the pocket into the stub bearing, but it is not so easily cleaned as fig. 2. Regarding the oil overflow from the distributor drive pocket it is more convenient to run this into the crankchamber than the wheelcase, and the former position possesses the advantage that it tends to prevent accumulation of oil when the car is on an up grade. E.{Mr Elliott - Chief Engineer} | ||