| 摘要 |
<p>The present invention relates to a ring-shaped sintered body and, more specifically, to a ring-shaped sintered body having a dual structure, which is used for a driving part of industrial machines or construction equipment machinery, which smoothly carries out the removal of harmful substances from the inner circumference of a bearing and a shaft, which is useful for making a new form of sintered oilless bearing bush for carrying out smooth sliding, especially for a low speed heavy bearing, by minimizing damage to the shaft and reducing friction to prevent frictional heat during operation, and which comprises dissimilar metal sintering assembly on the inner and outer peripheries to optimize load-bearing performance and lubricating properties, and a manufacturing method for the same.</p> |
