The graphs of friction force reported by Stribeck stem from a carefully conducted, wide-ranging series of experiments on journal bearings.
The disadvantage of this design is its lower load carrying capacity, as compared to typical journal bearings.
Reduced friction likely through Nissan's extensive use of coatings on pistons, journal bearings, etc.
Thrust bearings and journal bearings are a critical part of design.
These were called journal bearings and depended on lubricants to function.
For example, journal bearings in gasoline (petrol) and diesel engines pump oil at low pressure into a large-gap area of the bearing.
This bearing consists of several small journal bearings attached to a disk which has a larger crankshaft journal bearing in the center.
The roller and ball-bearings in the bottom end had been replaced by shell-type journal bearings similar to those used in modern car engines.
It consists of a series of journal bearings that are held together by constraining link plates.
Engines up to operating number 023 had Knorr surface preheaters and journal bearings.