Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use. |
Knock, Bearing
The hammering effect of a bearing having excess radial clearance on its journal due to incorrect selection, wear or damage. Big-end bearing knock is indicated by a heavy note, whereas small-end knock is of higher pitch. |