Patent ID: 8920141

Claim:
A mechanical combustion engine coolant pump configured to pump a coolant for an internal combustion engine, the mechanical combustion engine coolant pump comprising: a pump wheel; a rotor shaft arranged at the pump wheel, the rotor shaft being configured so as to be rotatable and to be radially supported; a driving wheel configured to be rotatable, to be radially supported and to be driven by the internal combustion engine; a connecting device configured to connect the rotor shaft with the driving wheel so as to be rotatably fixed; a first roller bearing comprising a separate outer bearing ring, the separate outer bearing ring being directly fixed to a pump frame body, the first roller bearing being configured to directly radially support the rotor shaft or the driving wheel; and a separate bearing fixation structure configured to axially push the separate outer bearing ring of the first roller bearing so as to be clearance-free against the pump frame body so that the separate bearing fixation structure is directly fixed to the pump frame body, the separate bearing fixation structure being provided as a single sheet metal body comprising a cylinder part configured to house the first roller bearing, a bearing fixation ring configured to project radially inwardly from a distal axial end of the cylinder part, and a mounting flange configured to project radially outwardly from a proximal end of the cylinder part.