| 摘要 |
<p>A bearing equipped with a rotation sensor, wherein a circuit board, having mounted thereto a sensor array and an input-output wire, is inserted in a sealing recess in a resin ring with the input-output wire led out to the outside, the sensor array is highly accurately positioned at the sealing recess, and the sealing recess is adapted to be compact. A resin ring (31) has formed therein a sealing recess (35) having a fixed reference surface (35a) onto which a circuit board (42), having mounted thereto a sensor array (41) and an input-output wire (43), is inserted from one side surface of the resin ring. The sensor array (41) is mounted at a position separated from one end of the circuit board (42). The input-output wire (43) is connected between the other end of the circuit board (42) and the sensor array (41). A projection (35b) is formed on the sealing recess (35). The projection (35b) forms a gap between the projection (35b) and the sealing recess (35), and the end of the circuit board (42) is inserted into the gap. The fixed reference surface (35a) and the other end surface (35c) of the inner wall of the sealed recess (35) and the circuit board (42) are in contact with each other, and the projection (35b) and one end of a package of the sensor array (41) are in contact with each other. This positions magnetism sensing surfaces of magnetic sensors (41a, 41b) to a sealing position at which the magnetism sensing surfaces are radially opposed to a track (22).</p> |
