| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To materialize a structure and a method for manufacturing the same suppressing variation of internal gap of a double row bearing part, preventing ground powder of a part from entering an inside of the double row bearing part at a time of assembly, and making axial direction dimension of a first and a second inner ring 2a, 2b substantially equal even if a structure installing a rotation detection device between a pair of the rolling element rows is adopted. <P>SOLUTION: A structure having an annular spacer 27 put between the first and second inner ring 2a, 2b is adopted. Internal gap of the double row bearing part is measured at a middle stage of assembly work of a bearing unit for supporting wheel, and axial dimension of the spacer 27 is adjusted to keep the inner gap in appropriate values when the measured value is not appropriate value. Then, the assembly work is continued and is completed. Consequently, the problem is solved. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
