发明名称 BEARING STATE INSPECTION DEVICE AND BEARING STATE INSPECTION METHOD
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a bearing state inspection device and a bearing state inspection method, capable of estimating the state of a lubricating film on a rolling bearing in the noncontact state to a rotation side wheel or a rolling element, of measuring simply an oil film thickness or the like, without using electrical contact such as a slip ring, and of simply assembling the device as a whole. <P>SOLUTION: This device is equipped with a conductive rotating ring 8 mounted on an inner ring 3 and is conducted electrically to the inner ring 3, and a fixing side unit 13 mounted on an outer ring 2. The fixing side unit 13 has a fixed ring 9 which is electrically non-conductive to the outer ring 2, facing the rotating ring 8 via a clearance for capacitance generation; and a metal member 12 electrically insulated from the fixed ring 9 and made electrically conducted to the outer ring 2. <P>COPYRIGHT: (C)2008,JPO&INPIT</p>
申请公布号 JP2008185339(A) 申请公布日期 2008.08.14
申请号 JP20070016371 申请日期 2007.01.26
申请人 NTN CORP 发明人 TAKAHASHI TORU;NISHIKAWA KENTARO
分类号 G01M13/04;F16C19/52;F16C33/32;F16C33/58;F16N29/00;G01B7/06;G01N27/22 主分类号 G01M13/04
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