| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rolling support device which causes less surface damage and offers an excellent rolling fatigue life even though employed under an undesirable environment in a lubricating state. <P>SOLUTION: A thrust needle roller bearing is equipped with an inner ring 1, an outer ring 2 and a plurality of needle rollers 3 rollably arranged between the raceway surface 1a of the inner ring 1 and a raceway surface 2a of the outer ring 2. In at least one of the raceway surface 1a of the inner ring 1, the raceway surface 2a of the outer ring 2 and the raceway surface 3a of the needle roller 3, a part having an area ratio of 75% or more is covered with lubricating film formed of a solid lubricant. It is preferable that the solid lubricant is graphite fluoride. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
