A speed measuring device for a wheel-hub unit provided with a rolling bearing, the measuring device having an encoder wheel made of magnetized elastic material and assembled on a rotating ring of the bearing; mechanical supporting means that are directly placed between the encoder wheel and the ring so that the encoder wheel and the ring are angularly constrained to each other; and mechanical locking means for axially locking the encoder wheel inside a seat defined by the mechanical locking means together with the mechanical supporting means.

A wheel hub assembly for motor vehicles, having a rotating hub and a bearing unit. The bearing unit including a radially outer ring provided with respective radially outer raceways, a radially inner ring provided with respective radially inner raceways, a plurality of rolling bodies positioned between the corresponding inner and outer raceways, a sensor for detecting the speed of rotation and the associated sensor holder. A cavity is formed in the radially outer ring of the bearing unit and a protuberance is formed on the outer mounting diameter of the sensor holder, the protuberance being able to be inserted inside the cavity to perform an anti-rotation retention function and ensure the mechanical orientation of the sensor holder.

A double row bearing device includes an outer ring, a first inner ring body, a second inner ring body, and a protrusion. The first inner ring body is provided on an outer circumferential surface of a tube portion and is rotatable as a unit with the tube portion. The second inner ring body fits on the outer circumferential surface of the tube portion and is located to provide an axial clearance between the first and the second inner ring body. The protrusion includes at least one of a first portion and a second portion. The first portion protrudes toward the second inner ring body from a first end face of the first inner ring body facing the second inner ring body. The second portion protrudes toward the first inner ring body from a second end face of the second inner ring body facing the first inner ring body.

A method for mounting a rolling bearing arrangement onto a rotor and into the bearing housing of a turbocharger is provided. The method includes inserting a component, which is deformable under the exertion of pressure, into the intermediate space between two rolling bearings of the rotor assembly. The rotor assembly includes a rotor shaft, inner bearing rings which are fastened to the rotor shaft or integrated into the rotor shaft and which have a spacing to one another, rolling elements which are inserted into the inner bearing rings, and outer bearing rings which likewise have a spacing to one another. The method also includes deforming, by exertion of pressure, the component that has been inserted into the intermediate space between the two rolling bearings, to set a desired axial preload between the two rolling bearings.

A bearing assembly, for example a thrust bearing assembly including first and second rings is provided with alternating high and low modulus rolling elements. The low modulus rolling elements have a greater diameter than the high modulus rolling elements so as to initially bear a relatively greater percentage of applied loads.

A fixed bearing for a steering gear includes a bearing sleeve, and ball bearing having an inner bearing shell and outer bearing shell. The inner shell is configured to hold a pinion shaft of the steering gear. The outer shell is held in the sleeve. Each shell respectively has at least one guide groove to hold and guide bearing balls, and a pivot ring with an outer ring and inner ring pivotably connected via at least one torsion web. The inner ring is connected to the sleeve. The outer ring is configured to mount the fixed bearing in a steering gear housing. At least one shell is formed from partial shells, each partial shell defining at least a portion of the respective guide groove. The multi-part design enables relatively large guide groove shoulders and a correspondingly relatively high ball bearing load-bearing capacity even under a relatively high tilting load during steering gear operation.

A hub-bearing unit is provided with: a rotatable hub, with an axially outer flange portion configured for engagement with a rotatable element of a motor vehicle, a bearing unit provided with a fixed radially outer ring, configured for engagement with a fixed element of the motor vehicle, a first, axially outer, crown of rolling bodies, and a second, axially inner, crown of rolling bodies, interposed between the radially outer ring and the hub. The hub also assumes the function of the radially inner ring of the bearing unit and the bell of a constant velocity joint. The hub-bearing unit is designed so that the axial distance between the center of the axially inner crown of rolling bodies and the rolling center of the constant velocity joint lies within a predetermined range according to the following formula:

A bearing device includes: a bearing portion that has an inner ring, an outer ring, a plurality of balls interposed between the inner ring and the outer ring, and a cage that holds the balls; and an oil supply unit provided adjacent to the bearing portion in the axial direction. The oil supply unit has a pump that discharges a minute amount of lubricating oil to the bearing portion, and varies the amount of oil supplied to the bearing portion by discharge of lubricating oil from the pump.

The present invention is intended to provide a machine component composed of metal and rubber that results in no increase of material costs for an adhesive or increase of manufacturing costs for metal molding, causes no contamination of the metal mold or generates no foreign matter on the metal mold due to adhesion of the adhesive at the time of molding, causes no failure by separation of the adhesive from a fitting portion at the time of fitting the metal component, and is clean and favorable in appearance. A machine component 1 composed of metal and rubber is formed by applying a thermoset resin adhesive A to a surface of a metal component 2 of a predetermined shape, and vulcanizing and adhering a rubber 3 of a predetermined shape to part of the surface of the metal component 2 by metal molding.

An electric actuator includes: a drive part (2); a motion conversion mechanism part (3) configured to convert a rotary motion from the drive part (2) to a linear motion in an axial direction parallel with an output shaft (10a) of the drive part (2); a driving force transmission part (4) including a transmission gear mechanism (28) configured to transmit a driving force from the drive part (2) to the motion conversion mechanism part (3); and a motion-conversion-mechanism support part (5) including a double-row bearing (40) configured to support the motion conversion mechanism part (3), wherein the double-row bearing (40) is arranged on one side in the axial direction with respect to the transmission gear mechanism (28).