Abstract: A cooling water pump, for an internal-combustion engine in particular, with a casing provided with at least one bearing designed to support a pump shaft, with a sealing element devised to seal the bearing against a working space containing the cooling agent as well as with a leakage chamber arranged in the casing and receiving the cooling agent that leaks through the sealing element. A particularly simple way of production is achieved by the fact that the leakage chamber may be brought out of shape by a slider pulled in an essentially transverse direction and preferably normal to the plane on the axis of the pump shaft.

Abstract: The invention relates to a centrifugal pump with an impeller which is arranged in a pump housing and can be driven by a shaft which is rotatably held in the pump housing by way of at least one bearing, with the bearing, which is preferably arranged as a roller bearing, being arranged in a bearing holder which is detachably connected with the pump housing. In order to simplify the production of the water pump and to facilitate maintenance it is provided that the bearing holder, at the end facing the impeller, comprises an assembly part which is preferably integrally designed with the pipe section.