1.material,steel GCR - 15
2.Quality authentication ISO 9001:2000
3.Hardness:62

Deep groove ball bearings mainly bear radial load, but also can withstand a certain amount of axial load. This type of bearing friction coefficient of small, high limit speed, size and diverse forms. Suitable for precision instruments, low noise motor, automobile, motorcycles and general machinery, is the most widely used in machinery industry of a class of bearings.