A Novel Method for Remaining Useful Life Prediction of Roller Bearings Involving the Discrepancy and Similarity of Degradation Trajectories

Table 9

The value of fitted degradation curves of training bearings at the life endpoint.

Training bearing	B 1_1	B 1_2	B 2_1	B 2_2	B 3_1	B 3_2
Sample length	122	160	491	161	2,538	2,495
Optimal order	7	5	4	5	3	6
	0.5230	0.6050	0.5892	0.6460	0.6586	0.3708