Comprehensive Evaluation Model of Bearing Transportation Protection Effect of Bogie Traction Motor under Data Imbalance

Table 1

Summary of protection status of motor bearings.

Protective status	Drive end	Nondrive end	Fixed binding of transmission end	Back and forth
1	Undecoupled	Screw top is dead	Longitudinal with the wheel axis	Go/return
2	Decoupled	Screw top is dead	Unfastened	Go
3	Undecoupled	The screw is not dead	Unfastened	Return