The Relationship of Journal Bearing Wear to Multigrade Engine Oil Viscometric Properties
770627
02/01/1977
- Event
- Content
- A high speed road test procedure was developed to demonstrate performance of multigrade engine oils in journal bearing wear protection. High shear viscosities of test oils were approximated through use of a pump loop. A reasonable first approximation of critical viscosity for bearing failure is estimated by measurements at 149°C and about 5Xl05 sec -1 with the pass/fail limit being about 3.5 cSt.
- Pages
- 9
- Citation
- Stambaugh, R., Kopko, R., and Bennett, P., "The Relationship of Journal Bearing Wear to Multigrade Engine Oil Viscometric Properties," SAE Technical Paper 770627, 1977, https://doi.org/10.4271/770627.