| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To smoothly manufacture a product of high quality and to realize a structure of high traceability. <P>SOLUTION: An outer ring 2, a hub main body 5 and an inner ring 6 are respectively provided with recording mediums 18a-18c. Information on actual dimension or the like of each component is recorded in each of the recording mediums 18a-18c. Thus optimal combination of the components can be easily studied on the basis of the information only by reading out the information from the recording mediums 18a-18c when the components are assembled. Further a number of pieces of product information can be easily obtained from the information recorded in the recording mediums 18a-18c after the products are distributed to be marketed. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
