| 摘要 |
A lubricating system that realizes enhancing of the capability of lubrication component retention of foam lubricant and limiting of the rate of lubrication component exudation by deformation of foam lubricant to required minimum, and that excels in affinity in initial-stage lubrication, ensuring prolonged service life and low cost, and that excels in productivity; a bearing utilizing the system; a universal joint utilizing the system; and a process for production thereof. The lubricating system is one comprising, provided together in a lubrication subject site, lubricant for initial stage (10) and foam lubricant (9), the foam lubricant (9) having a lubrication component contained in a resin capable of foaming/hardening to thereby render the same porous, wherein the lubricant for initial stage (10) is either a grease of 300 or higher consistency or 0.7 wt.% or greater oil separation degree measured 24 hours later at 70‹C, or a lubricating oil of 50 mm2/sec or higher kinetic viscosity at 40‹C, and wherein in the initial-stage lubrication of the lubricating system, at least the lubricant for initial stage (10) is provided in a slide area of the lubrication subject site. ® KIPO & WIPO 2009 |
