CERAMIC SLIDING PART

摘要

A ceramic sliding member that can prevent the abnormal or uneven wear of a mating metal sliding part even if oil polluted by exhaust gas components is used, characterized in that a silicon nitride material of a sliding surface material and a metal main body having a thermal expansion coefficient greater than that of the sliding surface material are jointed together, that a crowning-formed portion is formed in the sliding surface of the sliding surface material, and that the difference between crowning amounts (da, db) of any two points axisymmetric relative to the centre line of the crowning-formed portion ranges from 10 % to 50 % of an average value of the crowning amounts of the two points.