Motor and pump unit especially for slip-controlled brake system has base of crank chamber provided with axial bearing element for base of bearing race and protrudes from housing component for drive element in direction of base

摘要

The motor and pump unit comprises translationally movable hydraulic working pistons (14) with one end protruding into a crank chamber (6) for a translationally movable drive element (7) housed in a bearing (8) which has a bearing race (9) with a cup-form base (10). The base (13) of the crank chamber has an axial bearing element (18) for the base of the bearing race and protrudes from the housing component (3) for the drive element in the direction of the base and has a contact face with a surface area which is smaller than the surface area of the outer side (12) of the cup-form base. An Independent claim is included for a radial piston pump which has an axial bearing element (18) formed from a bearing material which has an essentially greater hardness than the material of the housing component (3).