Patent ID: 8177608

Claim:
A fan-type grinding wheel which is drivable for rotation in a direction of input rotation ( 11 ), the fan-type grinding wheel comprising a rigid support plate ( 1 ) which comprises a central axis ( 6 ); an inner hub ( 2 ); and an annular rim region ( 4 ) with an outer peripheral rim ( 13 ); grinding elements ( 5 ) which comprise in each case one main portion ( 17 ); a bending portion ( 18 ); an outer portion ( 16 ); a longitudinal edge ( 12 ) which is arranged in a leading manner relative to the direction of input rotation ( 11 ); and a longitudinal edge ( 20 ) which is arranged in a trailing manner relative to the direction of input rotation ( 11 ); whose respective main portions ( 17 ) form a first working face ( 8 ) in the form of an annular grinding element package on a first side of the support plate ( 1 ), the main portions ( 17 ) being fastened at identical angular distances in the region of their leading longitudinal edge ( 12 ); whose respective bending portions ( 18 ) are bent around the outer peripheral rim ( 13 ) of the rim region ( 4 ) in such a way that they have in each case an approximately semi-frustoconical shape and form a peripheral working face ( 20 ); and whose respective outer portions ( 16 ) are fastened on a second side of the support plate ( 1 ) in the region of their leading longitudinal edge ( 12 ) as well, the outer portions thus forming a second working face ( 14 ); and wherein the grinding elements ( 5 ) are rectangular in shape.