thin-section crossed roller bearing thin-section crossed roller bearing ,because of its vertical arrangement of tapered roller with a 90ˇăv in the deep groove roller surface ,compared to other kinds of bearings ,has increased rigidity to a large extent .a set of crossed roller bearing can support radial load, axial load and loading moment from all directions .at the same time, the inner and outer ring dimensions of the bearing were miniaturized as much as possible. especially for the extremely thin is access to the limit. it can be used in, such as, the arthritis or the rotary location of the industry robots, rotary working table of the machine work center, revolution location of machine hand , accurate rotary working table , medical machinery , dispensing mechanism , and ic manufacturing installation.the prs thin section crossed roller bearing has two kinds of structures, one is dividing in the inner ring, the other is dividing in the outer ring .it consists three product series. there are interval separators between the vertical arrangement rollers in order to avoid tilting and the increase of mutual friction and rotating torque. it has excellent rotating precision. and we also can regulate the bearing clearance. even if we exert additional pre-pressure on it, it still can carry out rotating movements at highest precision. their installment are comparatively simple, too.