| 摘要 |
PURPOSE: To maximize lubrication by arranging a lubricating opening in a first ring installed in outer element of a spherical bushing, connecting it to a lubricating element of a second ring through a lubricating ditch in the spherical depressed inner surface. CONSTITUTION: A self-aligning spherical bush 10 existing between an inner member 12 and an outer member 14 has a first ring 16 and a second ring 28, and a plurality of the first lubricating openings 18 are penetratively arranged in the first plate 16, and the first lubrication groove 22 in the outer surface 20 and the fourth lubrication groove 26 in the inner spherical surface 24 are thus interconnected. The second lubricating opening 34 connecting the second lubrication groove 38 in the outer spherical surface 36 with the third lubrication groove 46 in the inner surface 44, and a circular channel 42 being a supplementary lubrication means 40 in the outer spherical surface 36, are formed in the second ring 28, so the lubricant is freely flowing through them. By this constitution, the lubrication of the engaged spherical surface is maximized. |
