Abstract: A gearwheel for a balance shaft includes a gear ring and a gear core, where the gear ring is fabricated of a first metal and the gear core of a second metal, where the second metal has a lower density than the first metal, where the gear core and the gear ring are compressed to each other at an inner surface of the gear ring, the gearwheel further including formfitting elements to form an additional formfitting between the gear ring and the gear core, where, as seen in a circumferential direction along the inner surface of the gear ring, a distance between two adjacent formfitting elements is larger than an extension of the formfitting element along the circumferential direction.