Fine-Grained Fault Diagnosis Method of Rolling Bearing Combining Multisynchrosqueezing Transform and Sparse Feature Coding Based on Dictionary Learning

Table 4

Dataset description in MFPT.

Fault types	Motor load (lbs)	Motor speed (Hz)	Samples	Fault states
Normal (N)	270	25	500	1
Inner race (IR)	0/50/100/150/200/250/300	25	500	2
Outer race (OR)	25/50/100/150/200/250/300	25	500	3