Schaeffler Technologies Ag & Co .kg

Steffen Gumbrecht

Marco Junker

Norbert Geyer

A pivot bearing () for a hydraulic clearance compensation element (), especially of a valve train of an internal combustion engine, is provided in which the pivot bearing () has a first part () projecting in an axial direction (a) with a surface () that is convex at least in some sections and also a second part () with a surface () that is concave at least in some sections for at least partially holding the first part (). To optimize the production of such a pivot bearing and to minimize the associated costs, the invention provides that the first part () is constructed at least partially as a ball, wherein the second part () surrounds the ball () with undercut in the axial direction (a).

Pivot bearing of a hydraulic clearance compensation element

A valve train for a reciprocating piston internal combustion engine with a transmission element in the form of a rocker arm () or pivot arm that can be actuated, on one hand, at least indirectly by a cam of a camshaft and is in active connection, on the other hand, through an intermediate connection of a valve bridge (), with gas-exchange valves (). The valve bridge () has hydraulic valve lash compensation elements ('HVAs') allocated to each gas-exchange valve ().

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Falkendorf, Germany

Steffen Gumbrecht