Rolling Bearing Fault Diagnosis Based on STFT-Deep Learning and Sound Signals

Table 1

Rolling bearing parameters.

d/mm	D/mm	/mm	/mm	α/deg	z/piece
25	52	38.5	7.5	0	12

The parameters in the table are as follows: d: inner diameter; D: outer diameter; : pitch diameter; : rolling parts diameter; α: contact angle; and z: number of rolling parts.