Patent ID: 8141450

Claim:
A gear wheel ( 1 ) with a toothed ring ( 2 ) and a gear wheel hub ( 3 ) having an axial gear wheel hub channel ( 19 ) formed with at least one opening ( 20 , 21 ), and with at least two segments ( 11 , 12 , 13 ) that are separated from each other in a circumferential direction and connect the gear wheel hub ( 3 ) with the toothed ring ( 2 ), wherein an annular groove ( 22 ) is provided around the opening ( 20 , 21 ) at a radial distance between the gear wheel hub channel ( 19 ) and a supporting region comprising an outer surface on the gear wheel hub ( 3 ) at which the segments ( 11 , 12 , 13 ) are connected, wherein the toothed ring ( 2 ) and the gear wheel hub ( 3 ) are further connected by a back wall ( 4 ) integrally formed with the toothed ring ( 3 ) and the gear wheel hub ( 2 ) wherein the annular groove is provided at a radial distance from opening ( 21 ) within a radial width of the hub wall and wherein an annular mating surface ( 23 ) that is raised in the axial direction relative to the back wall ( 4 ) is provided radially outside of the annular groove ( 22 ).