ECCENTRIC ARRANGEMENT, IN PARTICULAR FOR A PUMP OF AN ABS SYSTEM, AND PUMP FOR THE ABS SYSTEM

摘要

Radial piston pumps are used in vehicles, for example in ABS systems. The pumps have, in a known type of construction, a drive shaft with an eccentric section on which there is seated a rolling bearing which, in its entirety, rotates eccentrically about the axis of rotation of the shaft. It is an object of the present invention to propose an eccentric arrangement with high reliability during operation, and a corresponding pump. For this purpose, an eccentric arrangement (1) having a housing, having an eccentric shaft section (4) for eccentric rotation about a main axis of rotation H, wherein the eccentric shaft section (4) provides or bears an inner raceway (9), and having a rolling bearing device (7), wherein the rolling bearing device (7) is arranged on the eccentric shaft section (4) and defines an eccentric axis E, is proposed, wherein the rolling bearing device (7) has a multiplicity of rolling bodies (12) and an outer raceway device (8), wherein the outer raceway device (8) provides an outer raceway (10) for the rolling bodies (12), and wherein the rolling bodies (12) roll on the inner raceway (9) and on the outer raceway (10) in a rolling body chamber (11), having a support element (17) and having a support surface (18) as support partners, wherein the support element (17) lies movably on the support surface (18), wherein the support partners together form an axial support of the eccentric shaft section (4) on the housing (5), and wherein one of the support partners is arranged fixedly with respect to the housing and the other support partner is supported on the eccentric shaft section (4), wherein the support surface (16) is arranged fixedly with respect to the housing.