SKF bearing 1.Shaft Diameter :15,20... 2.r min. -Dimensions:0.6,1... 3.Limiting Speed rpm:11000,4200... 4.Designation:NK ... SKF bearing 1.Shaft Diameter :15,20... 2.r min. -Dimensions ... :0.6,1... 3.Limiting Speed rpm:11000,4200... 4.Designation:NKNew ...