Table 5.

The values of kurtosis (KU). Averaged values for 1-second and 10-second signal subsets in the whole dataset from sensors installed in two machines.

	Machine 1				Machine 2
	Sensor A1, z-Axis		Sensor A2, z-Axis		Sensor A1, z-Axis		Sensor A2, z-Axis
Rotational Speed ω [rpm]	KU 1 s	KU 10 s	KU 1 s	KU 10 s	KU 1 s	KU 10 s	KU 1 s	KU 10 s
300	4.5151	4.5818	3.2384	3.2557	-	-	-	-
400	5.6528	5.6463	3.1866	3.1953	9.6731	9.9327	6.9006	7.1002
500	4.2937	4.2811	3.2687	3.2695	-	-	-	-
550	3.7887	3.7870	3.1356	3.1335	-	-	-	-
600	3.8324	3.8476	3.0822	3.0854	-	-	-	-