Schaeffler Technologies Ag & Co .Kg

Ina Schaeffler Kg

Ina Walzlager Schaeffler Ohg

Thomas Dittenhofer

Stephan Popp

Gunter Schmid

Ralf Schuler

Klaus-Peter Zeilinger

The invention relates to a bearing arrangement () for a part to be mounted such that the part rotates about an axis, such as a cylinder, roller, drum or shaft, comprising at least one rolling bearing (), which is accommodated in a bearing housing (), which is mounted movably in an arrangement housing () in a linearly movable manner by at least one linear guide (), and also including an actuation device () for effecting a linear shifting movement of the bearing housing perpendicularly to the axis between a rest position and a working position. The actuation device includes at least one prestressed spring element, which presses the bearing housing into the working position, and at least one hydraulic or pneumatic device for generating a restoring force acting counter to the spring element for moving the bearing housing into the rest position.

Bearing arrangement

A direct drive for a rotation machine, particularly for a container treatment machine, this drive including a fixed machine part () and a machine part () rotating around a vertical machine axis, wherein the rotating machine part () is rotationally connected to the fixed machine part () by a roller bearing () arranged between the two machine parts () and having an outer bearing ring (), an inner bearing ring () and a plurality of rolling elements rolling between said bearing rings (), and can be driven by a torque motor (). On the rotating machine part (), a plurality of magnets () is provided, surrounding the rotating machine part, while on the fixed machine part (), a stator () formed of a plurality of electric coils () is arranged, such that the rotating machine part () can be set in a defined rotational motion through an electromagnetic field generated when the stator () is energized in cooperation with the magnets (). The stator () on the fixed machine part () is formed as a full ring of 360&#xb0; covering, without gaps, all magnets () on the rotating machine part (), this full ring being composed of a number of stator ring segments () adjacent to one another and connected to one another by an electrical series connection and also composed of a number of stop elements () arranged between the stator ring segments () for fixing the stator ring segments () in a circumferential and radial direction.

Direct drive for a rotation machine, particularly for a container treatment machine

The invention relates to an electromotive direct drive for one cylinder () of a printing press, which cylinder () is held in a connecting construction () with a journal () via a roller bearing (), a rotor () of an electric motor () being connected fixedly in terms of rotation to the journal (), and a stator () being connected to the connecting construction (). This drive is distinguished by the fact that the rotor () is connected to an end side of the roller bearing (), and the stator () is accommodated by a housing () which can be fastened to the connecting construction () via a bearing housing (). The advantage of this direct drive according to the invention lies in the fact that the drive and the bearing are combined as a captive, preassembled structural unit which can be handled in a simple manner.

Direct drive for a printing-press cylinder

A bearing arrangement for opposite journals of cylinders, rolls or drums having actuators that permit a displacement of the cylinders, rolls or drums in a direction perpendicular to an axis of rotation of said cylinders, rolls or drums, each of said journals being received in a frame wall via a rotary bearing for being placed against and removed from said frame wall whereby a centered rotary bearing () is received in a bearing housing (), the bearing housing () is arranged through a linear bearing unit () on a connecting structure () for longitudinal displacement relative to the connecting structure (), and the connecting structure () is connected to the frame wall ().

Bearing arrangement for cylinders, rolls or drums

A radial-axial bearing assembly made up of a radial cylinder roller bearing ( ) and a thrust cylinder roller bearing ( ) characterized in that a radially inwards directed flange ( ) of an outer ring ( ) of the radial cylinder roller bearing ( ) is arranged between the radial cylinder roller bearing ( ) and the thrust cylinder roller bearing ( ) and thus defines a first raceway ( ) for the thrust cylinder roller bearing ( ), a first bearing washer ( ) is arranged between two cylinder roller crown rings ( ) of the thrust cylinder rcller bearing ( ) and defines a second and a third raceway ( ) for the thrust cylinder roller bearing ( ) while a second bearing washer ( ) defines a fourth raceway ( ) therefor, said second bearing washer ( ) being connected to the outer ring ( ) of the radial cylinder roller bearing ( ) by fixing screws ( ) whereby a self-retaining combined radial-axial bearing is formed whose pre-stress can be adjusted by the manufacturer through the axial dimension of the first bearing washer ( ).

Growing community of inventors

Humprechtshausen, Germany

Thomas Dittenhofer