| 摘要 |
PURPOSE:To obtain a bearing abrasion monitoring device which necessitates neither external power source nor exclusive battery, and is excellent in facility and reliability. CONSTITUTION:A power generating coil 40 is provided on the side of a bearing monitor 22 oppositely to an axially longitudinal permanent magnet 16 which measures a radial displacement of a rotary shaft 12. The coil 40 is connected to a monitor display circuit 28 through a lead wire 40a, a rectifier circuit 42, and a lead wire 40b. |
