Wear Calculation-Based Degradation Analysis and Modeling for Remaining Useful Life Prediction of Ball Screw

Table 1

Working conditions for degradation signals collection.

Working condition	Axial load (kN)	Rotational speed (r/min)
1	0	100
2	1	100
3	2	100
4	0	300
5	1	300
6	2	300
7	0	800
8	1	800
9	2	800