Applied with 160km/h urban rail train operation, the operating speed is greater than 6200r/min, the maintenance cycle is 7 years or 1.2 million kilometers, and the service life is greater than 2.5 million kilometers.

The bearing design precision level reaches above P5

To improve bearing performance and realize high-speed applications，cylindrical roller bearings and four-point contact ball bearings with one piece copper cage，lightweight design

Roller bearings are with optimize ribs and roller base surfaces. Ball bearings are with optimize the tightness of raceways