| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensor bearing using a sensor for measuring the rotated condition of the bearing with high accuracy at all times while effectively preventing the leakage of lubricant filled in the bearing to the outside. SOLUTION: The sensor bearing A comprises a rotary ring 2 and a stationary ring 4, a plurality of rolling elements 6, and sealing members for sealing the inside. It uses the sensor having a detector arranged on the outside for measuring the rotated condition. Out of the sealing members, a sealing member 20a on one side which is located near the detector relative to the rolling elements has an outer diameter portion ao fixed to a mounting groove 4g formed in the stationary ring and an inner diameter portion ai in slide contact with a seal groove 2g formed in the rotary ring. On the other hand, a sealing member 20b on the other side has an outer diameter portion bo fixed to the mounting groove formed in the stationary ring and an inner diameter portion bi in no contact with the rotary ring or in slide contact with a seal groove formed in the rotary ring, and an air hole formed penetratingly through the sealing member to connect the inside with the outside of the bearing. COPYRIGHT: (C)2008,JPO&INPIT
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