| 摘要 |
<p>An improved bearing apparatus including a housing (48, 50) having a bearing assembly (38) contained therein. A sensor device (72) is mounted to the housing for detecting the rotational rate of the shaft (46). The sensor device may be configured as a magnetic-type sensor operative to sense variations in magnetic characteristics produced during rotation of an annular detection element (66). Alternatively, the sensor device may be an optical sensor for detecting variations in optical characteristics produced by shaft rotation. In some presently preferred embodiments, the detection element is a nut or collar also utilized to effect securement of the bearing assembly to the shaft. Preferably, the shaft terminates at an interior location of the housing. In this case, the housing may include an end wall (52) or cap for covering an end of the shaft.</p> |
