| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To increase durability, service life and reliability of a bearing device, and improve maintainability in maintenance and inspection. <P>SOLUTION: A bush 23 provided to the inner periphery of a boss 22 is formed by sintered oil impregnated alloy in which a high-viscosity oil with viscosity of 230-1,000 cSt containing 4-40 wt.% copper is impregnated. A sealing device 29 provided between the boss 22 and a coupling pin 26 is composed of a first seal ring 30 fitted to the outer peripheral side of the coupling pin 26 and a second seal ring 33 fitted to the inner peripheral side of the boss 22 and brought into slide contact with the seal ring 30. A slide plate 34 brought into slide contact with the boss 22 and brackets 24, 25 at the position of a radial outside of the coupling pin 26 formed by employing a material with self-lubricatability is provided between an end surface of the boss 22 and brackets 24, 25. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
