Abstract: The invention relates to thin-walled rolling bearings, such as needle bearings, which are produced without the removal of material and the outer rings of which form a structural unit and are produced from a cold-rolled strip. According to the invention, the outer rings are produced from a cold-formable, fully hardenable steel, a ratio of from 1:20 to 1:5 being set between their wall thickness and the diameter of the bearing needles, and the fully hardened wall having a core hardness of ?600 HV and a surface hardness of ?680 HV. The invention makes it possible for bearings to withstand higher static bearings than bearings made from conventional steels while taking up the same installation space.

Abstract: An external mixing nozzle, with a flat-jet cap which is fastened to a nozzle body, the flat-jet cap being provided with a central bore or the like, pointing towards the nozzle body, for receiving a liquid insert, and having a central orifice which receives a mouth attachment of the liquid insert, at the same time defining an annular gap surrounding the mouth attachment, the flat-jet cap defining a planar surface portion which runs perpendicularly to the axis of the nozzle body and within which a central orifice is provided, and, furthermore, the surface portion having adjoining it laterally two surfaces running essentially mirror-symmetrically and obliquely to the axis of the nozzle body and adjoining the surface portion, wherein the flat-jet cap contains, in the region of the surface portion, outlet orifices which are provided at an equal distance from the central orifice and which communicate with bores provided so as to run in the jet cap obliquely to the axis of the nozzle body, with transitions from the

Abstract: An external mixing nozzle, with a flat-jet cap which is fastened to a nozzle body, the flat-jet cap being provided with a central bore or the like, pointing towards the nozzle body, for receiving a liquid insert, and having a central orifice which receives a mouth attachment of the liquid insert, at the same time defining an annular gap surrounding the mouth attachment, the flat-jet cap defining a planar surface portion which runs perpendicularly to the axis of the nozzle body and within which a central orifice is provided, and, furthermore, the surface portion having adjoining it laterally two surfaces running essentially mirror-symmetrically and obliquely to the axis of the nozzle body and adjoining the surface portion, wherein the flat-jet cap contains, in the region of the surface portion, outlet orifices which are provided at an equal distance from the central orifice and which communicate with bores provided so as to run in the jet cap obliquely to the axis of the nozzle body, with transitions from the