The invention refers to a rotor for a metering house (1) at a seed drill for sowing of seed or other granular material, which metering house comprises a house (2) and a within this house controllably driven rotor (4) for dosing of seed. According to the invention means (28, 29, 33) are arranged so as at increased torque in at least one place along the periphery of the rotor to decrease the outer diameter of the rotor (4) at least in this place. The rotor (4) is divided into two concentrically mounted parts, an outer dosing part (19) and an inner hub part (20), where the dosing part is adapted to enclose the hub part. The dosing part (19) has at least one elastic bar (28), extending in the longitudinal direction of the rotor and inwards. Each bar is adapted to be received and retained in a recess (33) in the hub part (20).