HRBH type (inner and outer rings without mounting holes), 

because there are no mounting holes in the outer and inner rings, flanges and support seats are required for installation. In addition, because the outer and inner rings are integral structures, installation has no effect on performance, so stable rotation accuracy and torque can be obtained, which is suitable for occasions where the outer and inner rings rotate but the size is required to be small.

HRU type (integral inner and outer rings with mounting holes), since both the outer and inner rings have mounting holes, no solid flange and support seat are required for installation. In addition, since both the outer and inner rings are integral structures, installation has almost no effect on performance, so stable rotation accuracy and torque can be obtained, which is suitable for occasions where the outer and inner rings rotate. (If you need relevant technical information on cross series bearings, please contact our staff)