A Fault Diagnosis Method of Train Wheelset Rolling Bearing Combined with Improved LMD and FK

Table 4

Parameters of the rolling bearing.

Bearing parameter	Value
Ball diameter ( (mm))	26
Pitch diameter ( (mm))	183.9
Roller number ()	17
Contact angle ( (°))	0
Shaft rotation frequency ( (Hz))	6.3
Outer ring fault frequency ( (Hz))	46.2
Inner ring fault frequency ( (Hz))	61.4