| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ball joint hardly causing a sag due to the creep deformation of a resin sheet, an abnormal sound and an operational abnormality by looseness caused by the sag even if continuously used over a long period under various conditions without abruptly changing a characteristic of the resin sheet within a usable temperature range. <P>SOLUTION: The resin sheet 17 interposed between a housing 16 of the ball joint 12 and a ball head 23 is formed of a thermoplastic resin having a glass transition temperature Tg of +120°C or higher, and a lubricant having kinematic viscosity at +40°C of 1,000 mm<SP>2</SP>/s or higher is filled in a storage chamber 19 of the housing 16. <P>COPYRIGHT: (C)2010,JPO&INPIT |
