Lubrication:            Wide temperature range Mobil Polyrex EM2 (-20 degree F to +350 F)

Noise Testing:        Noise tested before and after lubrication 

Noise Level:           Passes V2 Noise Vibration Standards - meets or exceeds Electric Motor Requirements

Precision Balls:      Matched ABMA Grade 10 or better for roundness 

Raceways:             Finely honed Super Finished for long life and low noise 

Quality Level:         Premium bearings meet or exceed ABEC 3 tolerances

                              

The Bearings measure: