An axial bearing device for a rotating shaft, bearing which is provided with a stationary support member and with a pressing member cooperating with the support member, one of these members being provided along the part of its surface of rotational symmetry , of regularly distributed surface grooves extending so that during rotation of the pressing member a viscous medium is pushed into the grooves in order to obtain a hydrodynamic lubrication characterized in that the grooved member comprises two concentrically disposed groove paths separated between and which extend opposite one another, with a geometry such that in both directions of rotation of the pressing member to the bearing has a required load capacity, if it were relatively desirable, communicating means of supplying the viscous medium to the bearing with the periphery of the two groove plots. (Machine-translation by Google Translate, not legally binding)
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