| 摘要 |
PROBLEM TO BE SOLVED: To provide a universal joint excelling in lubrication component retention, limiting a rate of lubrication component exudation to a required minimum even when having deformation by external force, excelling in affinity in initial stage, having long service life and low cost, and excelling in productivity. SOLUTION: In the universal joint, rotation torque is transmitted through engagement of track grooves 3, 4 formed in an outer member 2 and an inner member 1 and a torque transmitting member 5, the torque transmitting member 5 rolls along the track grooves 3, 4 and performs axial displacement, and initial stage lubricant 10 and foam lubricant 9 having a lubrication component contained in a resin foaming/hardening to become porous are provided together inside, wherein the initial stage lubricant 10 exists in at least one selected from a bottom of the outer member, a rolling part and a sliding part of the universal joint. COPYRIGHT: (C)2008,JPO&INPIT |
