The design of double row angular contact ball bearings is basically the same as that of single row angular contact ball bearings, but only takes up a smaller axial space. The double row angular contact ball bearing can bear radial load and axial load acting in two directions, it can limit the axial displacement of the shaft or housing in both directions, and the contact angle is 30 degrees. A bearing configuration with higher rigidity can be provided, and it can withstand the overturning moment. We supply following series double row contact ball bearings: 3000 series,3200 series,3300 series,3800 series,3900 series