A rolling-element bearing for an electromagnetic solenoid includes a hollow cylindrical cage with a plurality of spherical pockets formed around a first circumference and a second circumference of the cage. The pockets around the first circumference are offset from the pockets around the second circumference. Spherical rolling elements are provided in the spherical pockets and are captured for free rotation in the first pockets and second pockets.

An electromagnetic actuator having a permanent magnet coupled to an armature of the electromagnetic actuator is provided. The electromagnetic actuator includes a housing, and an armature assembly arranged within the housing. The armature assembly includes an armature and a permanent magnet coupled to the armature. The armature is movable between a first position and a second position, and the permanent magnet defines an axial magnet thickness and the armature defines an axial armature thickness. A ratio of the axial armature thickness to the axial magnet thickness is greater than approximately three.

The disclosure relates to an electromagnetic actuator for actuating a valve. The actuator has a housing, a core and a yoke. A coil body, which carries at least one coil winding, is arranged in the housing. The coil body encloses an armature space at least to some extent. An armature is arranged within the armature space such that it can be moved in its axial direction. A bearing element is arranged on the yoke and has a disc-shaped fastening portion and a tubular bearing portion, which bears the armature. The bearing portion projects inwards from the fastening portion.

The present disclosure relates to a low friction bearing liner for a solenoid that may include a core layer, a first outer layer overlying a first surface of the core layer, a second outer layer overlying the first outer layer, a first inner layer overlying a second surface of the core layer that is opposite of the first surface of the core layer, and a second inner layer overlying the first inner layer. The first outer layer and the first inner layer may include a fluoropolymer material and may have a melt flow rate of at least about 2 g/10 min at 372° C. The second outer layer and the second inner layer may include a fluoropolymer material distinct from the fluoropolymer material of the first outer layer and may have a surface coefficient of friction of not greater than about 0.2.

A relay contactor is provided and includes input and output leads, a shaft assembly, an actuator and first and second bearing assemblies. The shaft assembly includes a shaft, a plate disposed on the shaft and an elastic element. The shaft and the plate are movable between an open position at which the plate is displaced from the input and output leads and a closed position at which the plate contacts the input and output leads. The actuator is coupled to the shaft at a first side of the plate and is configured to selectively move the shaft and the plate into the closed position in opposition to bias applied by the elastic element. The first and second bearing assemblies are disposed to movably support the shaft at the first side and at a second side of the plate, respectively.

The present disclosure relates to a low friction bearing liner for a solenoid that may include a core layer, a first outer layer overlying a first surface of the core layer, a second outer layer overlying the first outer layer, a first inner layer overlying a second surface of the core layer that is opposite of the first surface of the core layer, and a second inner layer overlying the first inner layer. The first outer layer and the first inner layer may include a fluoropolymer material and may have a melt flow rate of at least about 2 g/10 min at 372° C. The second outer layer and the second inner layer may include a fluoropolymer material distinct from the fluoropolymer material of the first outer layer and may have a surface coefficient of friction of not greater than about 0.2.

A relay contactor is provided and includes input and output leads, a shaft assembly, an actuator and first and second bearing assemblies. The shaft assembly includes a shaft, a plate disposed on the shaft and an elastic element. The shaft and the plate are movable between an open position at which the plate is displaced from the input and output leads and a closed position at which the plate contacts the input and output leads. The actuator is coupled to the shaft at a first side of the plate and is configured to selectively move the shaft and the plate into the closed position in opposition to bias applied by the elastic element. The first and second bearing assemblies are disposed to movably support the shaft at the first side and at a second side of the plate, respectively.

The invention relates to an electromagnetic actuating device (20) having at least two actuator units (1a, 1b) which are arranged adjacently in a housing (10) and which each have electrically energizable static coil means (2a, 2b), armature means (3a, 3b) mounted so as to be movable relative to said coil means, and a plunger (4a, 4b) which interacts with the armature means (3a, 3b) and which is mounted so as to be movable along axial plunger direction (S1, S2) and which has a free end portion (5a, 5b) for engagement into an actuation partner, in particular a guide groove of a camshaft, wherein the plungers (4a, 4b) of the actuator units (1a, 1b) of the actuating device (20) are preferably arranged such that the plunger directions (S1, S2) thereof run parallel to one another, and wherein the device (20) has adjustment means (6) which are integrated in the housing (10) and which serve for varying the arrangement of at least one plunger along a plane (E) perpendicular to the respective plunger direction (S1, S2).

A relay contactor is provided and includes input and output leads, a shaft assembly, an actuator and first and second bearing assemblies. The shaft assembly includes a shaft, a plate disposed on the shaft and an elastic element. The shaft and the plate are movable between an open position at which the plate is displaced from the input and output leads and a closed position at which the plate contacts the input and output leads. The actuator is coupled to the shaft at a first side of the plate and is configured to selectively move the shaft and the plate into the closed position in opposition to bias applied by the elastic element. The first and second bearing assemblies are disposed to movably support the shaft at the first side and at a second side of the plate, respectively.

An electromagnetic actuating device. The device includes an electromagnetic coil including a central recess extending in an axial direction, a cylindrical pole tube inserted into the central recess and provided with a magnetic separation point, an armature situated displaceably in the pole tube, the armature being movable by an actuation of the electromagnetic coil, the armature being mounted in the pole tube in a sleeve-shaped bearing foil inserted into the pole tube, the bearing foil including an inner side facing toward the armature and used as a sliding surface and an outer side facing toward the cylindrical pole tube. It is provided that the bearing foil is coated at least on the inner side using a first layer made of perfluoroalkoxy polymer. A manufacturing method for such an electromagnetic actuating device is also described.