Hand-held and hand-guided random orbital polishing or sanding power tool

A hand-held and hand-guided random orbital polishing or sanding power tool (1), having a static body (31) being a fixed part of the hand-held and hand-guided random orbital polishing or sanding power tool (1) which does not move during operation of the hand-held and hand-guided random orbital polishing or sanding power tool (1), a motor (15), an eccentric element (17) driven by the motor (15) and performing a rotational movement about a first rotational axis (10), and a plate-like backing pad (9) connected to the eccentric element (17) in a manner rotatable in respect to the eccentric element (17) about a second rotational axis (16), the first rotational axis (10) and the second rotational axis (16) extending essentially parallel to one another and are spaced apart from one another,

• wherein
• an external circumferential surface of the eccentric element (17) has a rotationally symmetric part having at least discrete rotational symmetry in respect to the first rotational axis (10);
• the hand-held and hand-guided random orbital polishing or sanding power tool (1) comprises at least one first bearing (30) provided between the rotationally symmetric part of the external circumferential surface of the eccentric element (17) and the static body (31) of the hand-held and hand-guided random orbital polishing or sanding power tool (1) so that the eccentric element (17) is guided in respect to the static body (31) in a manner rotatable about the first rotational axis (10);
• the hand-held and hand-guided random orbital polishing or sanding power tool (1) is a random orbital polisher or sander, where the plate-like backing pad (9) is connected to the eccentric element (17) in a manner freely rotatable about the second rotational axis (16);
• and
• the hand-held and hand-guided random orbital polishing or sanding power tool (1) comprises a magnetic gear arrangement (40) provided functionally between a driving shaft (18) and the eccentric element (17), the driving shaft (18) having a rotational axis corresponding to the first rotational axis (10), the magnetic gear arrangement (40) comprising a first number of first permanent magnets (41) attached to the driving shaft (18) with alternating polarities and a second number of second permanent magnets (42) attached to the eccentric element (17) with corresponding alternating polarities and opposite to the first permanent magnets (41).