| 摘要 |
<p>An apparatus (10) for determining a change in a condition in an item, and in particular overheating of a big end bearing (120). The apparatus (10) comprising a thermally reactive means (14) mountable on the big end bearing (120) and arranged to react to a temperature change so as to move to a detectable position such that at the respective part of the stroke it can be sensed by a fixed proximity sensor (20) located spaced from the bearing (120), to activate an alarm.</p> |
