摘要:
A suspension strut bearing (1) is provided with a vehicle-body attachment element (3) and a guide ring (5). A sliding bearing (9) or rolling bearing (11) that can rotate about a center axis (7) is arranged between the vehicle-body attachment element (3) and the guide ring (5). The guide ring (5) has at least one metallic reinforcement (17) and forms an axial and/or radial thrust bearing (13) for a coil spring (15). In addition, a manufacturing method for a component of a suspension strut bearing (1) is provided.
摘要:
The linear rolling bearing for transmitting torques about its longitudinal axis has an inner profile element and an outer profile element a first circulatory channel having roller bodies and a second circulatory channel having roller bodies. Each circulatory channel having a loadbearing channel, a return channel, and two deflection channels which connect the loadbearing channel and the return channel to one another in an endless manner. The inner profile has longitudinal teeth and each circulatory channel is positioned between separate teeth. The loadbearing channel of both the first and second circulatory channel bear against the same tooth. The first and second circulatory channel can transmit torque in the same direction by changing the return channel to a load bearing channel such that there are two loadbearing channels both on different teeth.
摘要:
An actuating unit for use on an electromechanically actuated disc brake for automotive vehicles including a drive unit or an electric motor, an actuating element for actuating one of two friction linings displaceably arranged in a brake caliper, and a first and a second reducing gear. The first reducing gear is comprised as a ball screw, while a planetary gear is used as the second reducing gear. To increase the efficiency, the present invention discloses a coupling shaft used to transmit forces from the planet cage of the planetary gear to the threaded spindle of the ball screw. The ends of the coupling shaft form universal joints with the planet cage and the threaded spindle.
摘要:
A device for actuating a vehicle brake, which device comprises a threaded spindle (1) which is secured against rotation in a stationary housing (4) while being axially displaceable toward and away from a brake disc (6) of the vehicle brake, and further comprises a nut (2) which surrounds the threaded spindle (1) and effects a displacement thereof, the nut (2) having a longitudinal axis and being mounted for rotation about this longitudinal axis in the stationary housing (4) while being connected to the rotor of a drive motor (9), comprises, according to the invention, a motion-transmitting ramp unit (10) equipped with rolling elements and arranged between the nut (2) and the drive motor (9).
摘要:
The invention concerns a centering device for steering valves of automotive vehicles and is characterized in that a needle roller bearing (16) is arranged between the drive shaft (5) and the valve bushing (12), said needle roller bearing (16) having an outer bearing ring (17) which is configured as a thin-walled sleeve which comprises, in at least one peripheral section, an elastically yielding raceway convexity (18) deviating from the circular shape, and said peripheral section comprises an angular groove (22) which is situated radially opposite an angular groove (23) disposed in an associated portion of the drive shaft (5). The needle roller bearing (16) of the invention assures a fine centering to the hydraulic center of the steering valve.
摘要:
An apparatus for converting a rotational movement into a rectilinear movement includes a threaded spindle, a nut (8) which surrounds the latter concentrically at a spacing, and a number of rolling bodies which are disposed in the spacing and roll on the track-forming outer thread of the threaded spindle as well as on the corresponding track (4) forming inner thread of the nut (8). The rolling bodies are guided by a cage (9) which includes slot-shaped pockets (11) disposed sequentially at spacings in the circumferential direction for receiving the rolling bodies, whereby, during a rotation of the nut (8) relative to the threaded spindle, each rolling body is axially displaceable by the amount of the threaded pitch inside the cage (9). At the conclusion of this rotation inside an axial groove (13) in the nut (8), the rolling body can be returned to its initial position by a cam (15) disposed in the vicinity of an end face of the cage (9). According to the invention, balls (3) are provided as rolling bodies and are respectively disposed in groups in a plurality of cage elements (10), and each cage element (10) is guided for displacement in an axis-parallel manner relative to the threaded spindle within one of the slot-shaped pockets (11) in the cage (9). In this way, a threaded drive is provided which has a simple design and is economical to produce.
摘要:
A rolling bearing for rotary movements comprising an inner bearing ring (1), an outer bearing ring (2) and rolling elements in the form of rollers arranged between said inner and outer bearing rings for permitting a transmission of radial and axial forces from one bearing ring to the other, wherein the rollers form two different groups, the rollers of one group being configured as cylindrical rollers (4) having a circular cylindrical outer peripheral surface, while the rollers of the other group are configured as profiled rollers (5) having an outer peripheral surface comprising circular grooves arranged axially behind one another, whereby a rolling bearing having a high axial and radial bearing capacity is created.
摘要:
A rolling bearing, in particular for steering columns of automotive vehicles, comprising rolling elements in the form of balls arranged between an inner ring and another ring, and a tolerance ring made of a polymeric material which is at least partially surrounded by the inner ring and is pressed axially against the inner ring in the direction of the balls by a spring, characterized in that the spring (7, 17) is made of a polymeric material.
摘要:
A device for damping rotary oscillations in a drive train with a freewheel clutch (27) located between a pulley (25) and a rotor hub (26) is provided. The hub (26) is connected to an input shaft of an auxiliary unit, and the pulley (25) is connected to a crankshaft via a traction means, and the freewheel clutch (27) has an inner ring (34), which surrounds the hub (26) while being fixed thereto, and includes an outer ring (35), which surrounds the inner ring (34) with radial play and which is fixed to the pulley (25). At least one locking element (36) that is actuated by centrifugal force is provided in the inner ring (34), and at least one locking receptacle (37) is provided in the outer ring (35).
摘要:
A gear rack for a rack-and-pinion steering system for a motor vehicle. The rack having a bearing surface including a recess within a circular gear rack. A guide roller, which is borne via a needle bearing, has corresponding bearing surfaces, resting on the bearing surfaces of the rack.