Device installation and removal of a bearing unit of a support roller.

Device for installation and / or removal of a bearing unit (3) consisting of an assembly part with a bearing pin roller disposed therein, on the roller bolt (1) the support roller armor laminate and / or the roller bolt (1) the support roller armor laminate, characterized in that a clamping anchor (5), extending in the axial direction of the roll, engages the roll pin (1) because the tension anchor (5) carries a cap washer (6) axially movable thereon which bears on the one hand, a nut (8) displaceable by screwing on the clamping anchor (5) and, Furthermore, in the bearing unit (3) and that the nut (8) can temporarily be associated with it a hydraulic pretensioning tool (16), through which can be exerted a force of assembly between the tension anchor (5 ) and the cap washer (6) supported in the bearing unit (3), and porqueuna extraction unit (11) can temporarily be attached to the bearing unit (3) and that a hydraulic cylinder (15) of the extraction unit (11) can be supported on the roll pin (1).