抄録
By comparing a simultaneous analysis and approximate analyses proposed by author for four types of engine bearings of piston pin bearings(consist of one connecting rod small end bearing and two piston pin boss bearings), connection rod big end bearing and main bearing ,these analyses are clarified. It is nessecary for finite width bearing theory for paractial bearing design and practiocal phenomena analysis to save computation time, variable step's Runge-Kutta methods and iteration easy method with inherent algorithm of engine bearings are examined.
