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The G160 has a three main bearing crankshaft, whereas the G161 has five bearings. There is also an SOHC version of this called the G161S , which was used in the Florian and the Bellett. A new version of this engine, with the same dimensions, was called the G161Z and was installed in the Florian, Isuzu Gemini , Holden Gemini and Holden Rodeo ...
The number of main bearings is primarily determined by the overall load factor and maximum engine speed. [1] Increasing the number of bearings in an engine will generally increase the size and cost of the engine, but also reduces bending stress and deflection caused by the distance from the crank pins to the nearest bearings.
Fluid bearings are bearings in which the load is supported by a thin layer of rapidly moving pressurized liquid or gas between the bearing surfaces. [1] Since there is no contact between the moving parts, there is no sliding friction , allowing fluid bearings to have lower friction, wear and vibration than many other types of bearings.
[1] Thrust bearings come in several varieties. Thrust ball bearings, composed of bearing balls supported in a ring, can be used in low-thrust applications where there is little axial load. Cylindrical roller thrust bearings consist of small cylindrical rollers arranged flat with their axes pointing to the axis of the bearing. They give very ...
At the beginning of 1984, Ford Pinto engine displacement range switched from 1.3/1.6/2.0 to 1.6/1.8/2.0. The newly introduced 1.8 L engine used the 2.0 L crankshaft, so to uniform engine parts for the whole range after dropping the 1.3 L — the 1.6 L was redesigned to also take the 2.0 L crankshaft which had a 76.95 mm (3.030 in) stroke.
In 2001, Thomas introduced its current generation of rear-engine bus with the debut of the Thomas Saf-T-Liner HD (HD=Heavy Duty); for 2004, the HD was re-branded as the HDX. [1] Serving as the replacement for the Saf-T-Liner ER and WestCoastER, the HD/HDX would use much of the same body, with the exception of the drivers' compartment forward.
As Thomas is a subsidiary of Freightliner, there are no plans by other body manufacturers to utilize the C2 chassis. However, the standard Freightliner M2 chassis is available to the commercial and shuttle bus industry as a cutaway cab as the Freightliner B2.
The loads within a bearing assembly are also affected by the speed of operation: rolling-element bearings may spin over 100,000 rpm, and the principal load in such a bearing may be momentum rather than the applied load. Smaller rolling elements are lighter and thus have less momentum, but smaller elements also bend more sharply where they ...