A wheel bearing arrangement for a motor vehicle with a wheel hub and a wheel bearing for the rotatable bearing of the wheel hub at a wheel mount. The wheel bearing has an outer ring and an inner ring, which is rotatable with respect to the outer ring around an axis of rotation and is connected to the wheel hub. A wheel flange extends from the wheel hub and, as viewed in the axial direction, has a brake disk mount, which is open in the direction facing away from the outer ring and which, as viewed in longitudinal section with respect to the axis of rotation, is formed by a recess of the wheel flange, and has a support surface for a brake disk.

A bearing device for a wheel is configured such that: bolt insertion holes are provided in a vehicle body mounting flange of an outer member; knuckle bolts are inserted through the bolt insertion holes; bolt press-fitting holes are provided in a wheel mounting flange of a hub ring; and hub bolts are press-fitted in the bolt press-fitting holes. A dam section protruding radially outward is provided on an outer-side outer periphery of the outer member, and a cutout through which a tightening tool for tightening the knuckle bolts can be inserted through the bolt insertion holes is defined in the dam section.

An improved axle may comprise three design features that, used individually or in combination, may drastically improve axle performance and decrease the likelihood of axle damage and/or deformation resulting from vehicle weight, jounce load, combined cornering load, and/or curb strike load. These three features are: dual opposed tapered roller bearings, increased shaft diameter at the bearings, and reinforced flange back face.

An improved axle may comprise three design features that, used individually or in combination, may drastically improve axle performance and decrease the likelihood of axle damage and/or deformation resulting from vehicle weight, jounce load, combined cornering load, and/or curb strike load. These three features are: dual opposed tapered roller bearings, increased shaft diameter at the bearings, and reinforced flange back face.

An axle device includes a power unit including an electric motor and a differential. A drive shaft transmits power distributed by the differential to a drive wheel. The drive shaft is supported by an axle pipe via a hub bearing. The right and left axle pipes are respectively fixed to right and left portions of the axle frame, and the power unit is fixed to the axle frame.

An axle device includes a power unit including an electric motor and a differential. A drive shaft transmits power distributed by the differential to a drive wheel. The drive shaft is supported by an axle pipe via a hub bearing. The right and left axle pipes are respectively fixed to right and left portions of the axle frame, and the power unit is fixed to the axle frame.

A tone wheel assembly includes a tone wheel. A first member is attached to the tone wheel. A second member is at least partially disposed around a portion of the first member. The second member includes a collar portion, one or more first leg portions extending axially from the collar portion, and one or more second leg portions extending axially from the collar portion. The one or more first leg portions include a first leg portion protuberance that extends radially from an outer surface of the one or more first leg portions. The one or more second leg portions include a second leg portion protuberance that extends radially from an outer surface of the one or more second leg portions.

A tone wheel assembly includes a tone wheel. A first member is attached to the tone wheel. A second member is at least partially disposed around a portion of the first member. The second member includes a collar portion, one or more first leg portions extending axially from the collar portion, and one or more second leg portions extending axially from the collar portion. The one or more first leg portions include a first leg portion protuberance that extends radially from an outer surface of the one or more first leg portions. The one or more second leg portions include a second leg portion protuberance that extends radially from an outer surface of the one or more second leg portions.

A wheel assembly has a wheel with a hub. A rotation surface disposed in the hub has a bore. A sleeve insertable in the bore of the rotation surface has an outer surface with a circumferential groove and first and second opposite axial ends. The first axial end has a shoulder extending radially outward. A resilient ring disposed in the circumferential groove is compressible to a compression diameter sufficient to enable the sleeve to be inserted in the bore of the rotation surface. The resilient ring is expandable to an expansion diameter greater than the inner surface diameter of the bore of the rotation surface when unconstrained. The circumferential groove is spaced from the shoulder at a distance sufficient to enable the resilient ring to expand to the expansion diameter when the sleeve is inserted in the bore of the rotation surface and the shoulder is adjacent the rotation surface.

A plunging assembly of a driveshaft includes: an outer housing having a bore having a plurality of outer ball grooves extending in a longitudinal direction; an inner shaft being disposed to be able to undergo relative movement in the longitudinal direction in the bore of the outer housing and having a plurality of inner ball grooves that are paired respectively with the outer ball grooves to form a plurality of ball tracks; a plunging unit connecting the outer housing and the inner shaft to allow a plunging motion and a rotational power transmission between the outer housing and the inner shaft; and a stopper that is provided in the bore of the outer housing to limit relative movement of the inner housing and the inner shaft in a direction in which the inner shaft is inserted into the bore. The outer housing has a mounting hole communicating with the bore, and the stopper is a plug member that is inserted into the mounting hole in a state that a frontal end portion thereof is exposed to the bore.