| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for a wheel capable of measuring accurately a load applied to the wheel using an inexpensive structure, without leaving any problem about the strength. <P>SOLUTION: This invention is applied to the bearing device for the wheel, wherein a plurality of rows of rolling bodies 3 are interposed in between opposite raceway surfaces 4, 5 of an external member 1 and an internal member 2. The device is provided with a load area measuring means 10 for measuring the load area of the rolling bodies 3, and a load estimation means 11 for estimating the load loaded to the bearing device for the wheel from a measured value by the load area measuring means 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
