41results about "Wheel bearings" patented technology

A mecanum wheel includes a first wheel frame having a circumference and a plurality of first mounting mechanisms spaced about the circumference. There is a second wheel frame having a circumference and a like plurality of second mounting mechanisms spaced about the circumference. There are a plurality of roller units, each having a roller surface and a hollow center cavity. There is an axle disposed in the hollow center cavity of each roller, and a first end of the axle is connected a first mounting mechanisms and the second end of each axle is connected to the second mounting mechanism. The second end of each axle includes a notched portion.

In one aspect, a wheel end system is provided that includes a spindle having an interior and a side wall extending about the interior. The wheel end system further includes a wheel hub, inboard and outboard bearings rotatably connecting the wheel hub to the spindle, and a spacer between the inboard and outboard bearings. The spacer extends about the spindle and has a spacing between the spacer and the spindle. The side wall of the spindle has an airflow opening with an inlet portion that is outboard of the inboard bearing. The airflow opening is configured to permit air to travel from the spacing between the spacer and the spindle into the interior of the spindle.

In one aspect, a wheel hub assembly having a wheel hub body, an inboard bearing assembly, an outboard bearing assembly, and a seal. The inboard bearing assembly has a radially outer ring mounted to the wheel hub body, a radially inner ring, and a plurality of bearing elements that permit the radially outer ring to rotate relative to the radially inner ring. The seal includes a seal case mounted to the wheel hub body and a sleeve having a sleeve body mounted to the radially inner ring of the inboard bearing assembly. The sleeve body extends inboard from the radially inner ring and is configured to extend along the spindle and be spaced radially therefrom with the inboard and outboard bearing assemblies rotatably connecting the wheel hub body to the spindle.

According to one embodiment, a motor vehicle wheel bearing is provided that rotatably mounts a vehicle wheel relative to the body. The wheel bearing comprises a wheel hub rotating with the wheel, at least one inner ring mounted on the wheel hub, an outer ring coupled to a body-side component, several rolling elements for rotatably supporting the wheel hub and the inner ring relative to the outer ring, an inner sealing element for sealing at an axially inner end section of the bearing chamber, and an outer sealing element for sealing at an axially outer end section of the bearing chamber. The outer sealing element comprises a frame press-fitted onto the outer ring and an elastic sealing section integrally connected to the frame. The frame has a press-fit section, a flange section bent radially inward from the press-fit section, and a bent section bent radially outward from the press-fit section.The elastic sealing section comprises a base section that partially or completely surrounds the frame, one or more sealing lips, and an overmolded section that encompasses the bent section of the frame. A radial outer end section of the bent section is arranged radially outside the outer circumferential surface of the press-fit section, and a radial height between the outer circumferential surface of the press-fit section and the radial outer end section of the bent section is specified as at least 0.3 mm.

A bearing unit for a wheel hub assembly for motor vehicles, the bearing unit having an axis of rotation (X) and having two radially outer raceways, two radially inner raceways, two rows of rolling bodies, the bearing unit having tribological parameters whose values affect the magnitude of the frictional forces between the respective raceways and rolling bodies of the rows of rolling bodies, wherein at least one value of a tribological parameter is minimized or maximized to reduce the magnitude of the frictional forces as a function of the relative position along the axis (X) of a line of action (W) of loads acting on the bearing unit and of the plane of axial symmetry (Z).

A hub bearing unit includes a radially outwardly extending flange, a first portion on a first side of the flange and a tubular portion on a second side of the flange. A bearing outer ring surrounds the first portion, and rolling elements are mounted between the first portion and the outer ring. A splined shaft of a constant velocity joint extends into the hub and has a threaded end portion inside the tubular portion. A threaded connector is mounted on the threaded end portion and has a deformable portion configured to be deformed to prevent the threaded connector from being unscrewed. A portion of the tubular portion near the flange includes a radial through hole configured to allow a torque arm of a deformation tool to access and deform the deformable portion.

Disclosed is a sprocket assembly (1) comprising a sprocket (2) including a centre orifice (3) and a bearing (4) located in the centre orifice with an outer part (5) of the bearing fixed in relation to the sprocket. The sprocket assembly also comprises a dust cover (6) fixed in relation to an inner part (7) of the bearing, wherein an outer cover diameter (OCD) of the dust cover is bigger than an outer bearing diameter (OBD) of the bearing, so that an outer periphery (8) of the dust cover is extending radially past the outer part. Furthermore, the sprocket assembly comprises an impeller (9) arranged at the outer periphery of the dust cover, wherein the impeller is fixed in relation to the sprocket. Furthermore, a method for preventing ingress of dirt in a bearing of a sprocket assembly and use of a sprocket assembly is disclosed.

A wheel bearing arrangement (1) comprises a wheel hub (10) with an internal toothing (12), a wheel bearing (20) arranged on the wheel hub (10), a constant velocity joint (30) with an axle journal (32), wherein the axle journal (32) has an external toothing (33) which engages with the internal toothing (12) of the wheel hub (10) for torque transmission, and a clamping device (40) by means of which the wheel hub (10) including the wheel bearing (20) is axially clamped against the constant velocity joint (30) such that an inner bearing ring (21) of the wheel bearing (20) is pressed against a contact shoulder (34) of the constant velocity joint (30). A metallic, uncoated friction ring (50) is arranged between the inner bearing ring (21) and the contact shoulder (34), the sliding friction coefficient for which the contact coefficient against the inner bearing ring (21) and the contact shoulder (34) is at least 80% of the static friction coefficient.

A hub unit (10) is provided with a hub (20) made of an aluminium alloy for plastic processing, which forms, in a single piece, an axially extending cylindrical portion (21) and a radial flange (22); two bearing rings (14, 15) are mounted axially aligned around the cylindrical portion (21), an axially inner edge (17) of the cylindrical portion (21) is plastically deformed in a radially outer direction against the axially inner bearing ring (14).

A wheel bearing device for which the work of grinding a wheel hub is simplified. The wheel hub (3) has an inside track groove (3c), a seal land part (3d), a recess (3m), and a flange surface (3k). An outer-side sealing member (10) is provided with a core metal (11) and a sealing member (12). The sealing member includes a contact lip (12d) and a labyrinth lip (12e) facing the recess across a gap. The recess has a bottom (313) located between an outer diameter-side edge (311) and an inner diameter-side edge (312), and a tapered surface (314) that extends in the radial direction from the outer diameter-side edge toward the bottom and tilts toward one end of the axial direction going from the outer diameter-side edge toward the bottom.

Various embodiments involve a universal wheel. The universal wheel can include a wheel support portion; a set of bearing sleeves; a hub; and a flange. The wheel support portion can be configured to receive the set of bearing sleeves. The hub can be disposed about a perimeter formed by an outer portion of each bearing sleeve. The flange can be coupled to the wheel support portion such that the wheel support portion and the flange cooperate to maintain the hub between at least a portion of each of the wheel support portion and the flange with the hub disposed on a rolling surface defined by the set of bearing sleeve such that the hub is configured to rotate freely with respect to the wheel support portion and the flange when the wheel support portion and the flange are in a fixed position.

Provided is a wheel bearing for a part-time four-wheel-drive vehicle capable of switching between a two-wheel-drive mode and a four-wheel-drive mode. The wheel bearing includes a wheel hub to which a vehicle wheel is mounted and which rotates together with the vehicle wheel; at least one inner ring mounted to the wheel hub; an outer ring fixedly coupled to a vehicle-body-side member; and a plurality of rolling elements configured to rotatably support the wheel hub and the inner ring relative to the outer ring. An inner circumferential surface of the wheel hub is provided with hub splines extending in an axial direction such that a clutch member is configured to be selectively connected to and disconnected from the hub splines to perform switching between the two-wheel-drive mode and the four-wheel-drive mode. The hub splines of the wheel hub are configured to undergo surface hardening heat treatment.

A coupler ring applied to a vehicular wheel bearing according to an example embodiment of the present disclosure includes: a wheel-side side surface, a vehicle-body-side side surface, an inner peripheral surface connecting the wheel-side side surface and the vehicle-body-side side surface, and an outer peripheral surface connecting the wheel-side side surface and the vehicle-body-side side. An inner coupler-ring spline portion is formed on the inner peripheral surface, an outer coupler-ring spline portion, which is engaged with a ring gear, is formed on the outer peripheral surface, and a height of the outer coupler-ring spline portion on a vehicle-body side is formed to be greater than that on a wheel side.

A system for use in providing a load on a bearing mounted to a shaft includes a preload apparatus having a first extension and a second extension engageable with an inner race of the bearing and configured to provide a compressive load to the bearing. The first extension has a first projection and the second extension has a second projection. A stop ring is configured to limit a radially inward movement of the first extension and the second extension toward each other to position the first projection and the second projection relative to the bearing.

A wheel bearing assembly includes a wheel hub having inner teeth, a wheel bearing arranged at the wheel hub, and a constant velocity joint having an axle journal with outer teeth engaged with the inner teeth for torque transmission. A clamping device axially clamps the wheel hub and the wheel bearing against the constant velocity joint so that a bearing inner ring bears against a contact shoulder of the constant velocity joint. A metallic, uncoated friction ring is positioned between the bearing inner ring and the contact shoulder. The friction ring provides a coefficient of sliding friction that is at least 80 percent of a coefficient of static friction for both the bearing inner ring–to–friction ring interface and the friction ring–to–contact shoulder interface.

A rotating bicycle joint assembly includes a rotating joint part, a fixed joint part, and a bearing located between the rotating joint part and the fixed joint part. An outer part of the bearing is fixed in relation to one of the rotating joint part or the fixed joint part. An inner part of the bearing is fixed in relation to the other of the rotating joint part or the fixed joint part. A dust cover has an outer cover diameter that is bigger than an outer bearing diameter of the bearing, so that an outer periphery of the dust cover extends radially past the outer part. The rotating bicycle joint assembly also includes an impeller arranged at the outer periphery of the dust cover. The impeller is fixed in relation to the rotating joint part. The dust cover is fixed in relation to the inner part of the bearing.

Wheel head assembly comprising an improved wheel hub (200) and a pair of bearings (230, 232) mounted on a spindle of an axle of a heavy commercial vehicle, wherein the wheel hub (200) is rotatably mounted on the bearings (230, 232) and a lubricant cavity (210) is formed in the wheel head assembly between the bearings (230, 232), characterized in that: a lubricant filling opening (216) is formed in the wheel hub (200), the lubricant filling opening (216) extends axially inwards and radially inwards from the outer surface (254) of the improved wheel hub (200) at a predetermined angle (A) through an outer wall (226) of the lubricant cavity (210) to the lubricant cavity (210) and provides for fluid communication between the outer surface (254) of the wheel hub (200) and the lubricant cavity (210), thereby facilitating the filling and refilling of the lubricant cavity (210) with semi-liquid lubricant; and a plug (218) is located in the lubricant filling opening (216) between the lubricant cavity (210) and the outer surface (254) of the wheel hub (200).

A wheel bearing assembly (100) for rotatably mounting and supporting a vehicle wheel on a vehicle body, the wheel bearing assembly comprising: a wheel hub (210) with a wheel mounting flange (212) and a receiving space (250) for receiving rolling elements (310) of a constant velocity joint (300), which is formed on a vehicle body-side end section; at least one inner ring (220) which is mounted on an outer circumferential surface of the wheel hub (210) by press fit; an outer ring (230) with a vehicle body-side mounting flange (232); a plurality of rolling elements (240) configured to support the wheel hub (210) rotatably relative to the outer ring (230); a cuff fastening ring (270) which is press-fitted onto an outer circumferential surface of the wheel hub (210); and a rubber sleeve (400) to prevent the ingress of foreign substances into the receiving space (250) of the wheel hub (210), characterized in that the sleeve fastening ring (270) is configured to be fitted onto the outer circumferential surface of the wheel hub (210) by press fit with an engagement dimension t that is greater than a minimum engagement dimension a, calculated according to the formula described below [Formula 1]. a [ mm ] = − 0.00005 × D [ mm ] + 0.0345 [ mm ] [ D : inner diameter of the cuff fastening ring ( 270 ) ]

The present invention addresses the problem of providing a bearing device for vehicle wheel which the work of grinding a wheel hub is simplified. A hub ring (3) has an inner raceway groove (3c), a seal land portion (3d), a recess portion (3m), and a flange face (3k); an outer side seal member (10) is provided with a core metal (11) and a seal member (12); the seal member (12) comprises a second contact lip (12d) making contact with the seal land portion (3d), and a labyrinth lip (12e) facing the recess portion (3m) across a gap; and the recess portion (3m) comprises a bottom portion (313) located between an outer diameter side edge portion (311) and an inner diameter side edge portion (312), and a tapered face (314) that extends in the radial direction from the outer diameter side edge portion (311) toward the bottom portion (313) and tilts toward one end of the axial direction going from the outer diameter side edge portion (311) toward the bottom portion(313).

According to one embodiment of the present invention, provided is a vehicle wheel bearing for rotatably mounting a vehicle wheel to a vehicle body and supporting same. The vehicle wheel bearing according to one embodiment of the present invention may comprise: a wheel hub on which a vehicle wheel is mounted and which rotates together with the vehicle wheel; at least one inner ring mounted on the wheel hub; an outer ring coupled and fixed to a vehicle body-side member; a plurality of rolling elements for supporting the wheel hub and the inner ring to be able to rotate relative to the outer ring; and a sealing member for preventing the entry of foreign substances from the outside. According to one embodiment of the present invention, a sectional toothed portion is provided on the inner axial end of the wheel hub or the inner ring, so that the sectional toothed portion may mesh with a corresponding sectional tooth portion formed on a constant velocity joint so as to transmit power. According to one embodiment of the present invention, the sealing member may comprise: an outboard-side sealing member for sealing at the outer axial end portion of the bearing space in which the rolling elements are positioned; an inboard-side sealing member for sealing at the inner axial end portion of the bearing space in which the rolling elements are positioned; and a toothed-portion sealing member for sealing around the sectional toothed portion. According to one embodiment of the present invention, the toothed-portion sealing member may comprise: a frame to be mounted on the inner ring; and an elastic sealing portion attached to the frame. The elastic sealing portion may comprise a sealing lip formed to extend toward the constant velocity joint. The sealing lip may be configured to provide sealing by coming in contact with a groove provided on the outer circumferential surface of the constant velocity joint.

A drive axle assembly provides a maximum bending angle by way of a structure of a shaft bearing supported by a drive shaft with a compact assembly structure. The drive axle assembly is preferably configured to include, a wheel bearing assembled to an axle housing, a boot having a large diameter portion of one end connected to an outer ring of the wheel bearing, a drive shaft having an orbit formed along a circumferential direction of an outer circumferential surface, and a shaft bearing assembled between a small diameter portion of the other end of the boot and the drive shaft, and configured to restrict the rotation of the boot as a rolling element is rotated along the orbit.

An improved mecanum wheel that can be configured as a left-hand or a right-hand mecanum wheel is provided. The improved mecanum wheel is designed to enhance maneuverability and precision in various applications, such as robotics and vehicles. This improved mecanum wheel features a unique configuration with an inner rim 102, an outer rim 104, one or more rollers 106, one or more sandwich bolts 108, one or more invertible roller guides 110, one or more perpendicular bolts 112, one or more roller caps 114, and one or more guide pockets. The integration of these elements ensures (i) the flexibility in configuring the improved mecanum wheel as a left-hand or a right-hand mecanum wheel and (ii) precise and controlled movement of the mecanum wheel, thereby improving the overall performance of machines or robots equipped with it.

The present invention relates to a roller for use in an agricultural or mowing machine, the roller comprising a pair of tapered roller bearings and a pair of roller bearings, wherein the tapered roller bearings are closer to the midpoint of the roller than the roller bearings. An agricultural or mowing machine comprising the roller is also described.

Disclosed is a rotating bicycle joint assembly (22) comprising a rotating joint part (23), a fixed joint part (24), and a bearing located between the rotating joint part and the fixed joint part with an outer part of the bearing fixed in relation to one of the rotating joint part and the fixed j oint part, and wherein an inner part of the bearing is fixed in relation to the other of the rotating joint part and the fixed joint part. The rotating bicycle joint assembly also comprises a dust cover (6) having an outer cover diameter being bigger than an outer bearing diameter of the bearing, so that an outer periphery of the dust cover is extending radially past the outer part. Furthermore, the rotating bicycle joint assembly comprises an impeller (9) arranged at the outer periphery of the dust cover, wherein the impeller is fixed in relation to the rotating joint part and wherein the dust cover is fixed in relation to the inner part of the bearing. Furthermore, a method for preventing ingress of dirt in a bearing of a rotating bicycle joint assembly and use of a rotating bicycle joint assembly is disclosed.

A mecanum wheel includes a first wheel frame having a circumference and a plurality of first mounting mechanisms spaced about the circumference. There is a second wheel frame and a like plurality of second mounting mechanisms. There are a plurality of roller units, each having a roller surface and a hollow center cavity. There is an axle in the hollow center cavity of each roller, and a first end of each axle connected to a first mounting mechanisms and the second end connected to the second mounting mechanism. The first end of each axle includes an angled tip portion with a substantially flat surface. The second end of each axle may include a notched portion. There may be a needle roller bearing, a sleeve adapter between the needle roller bearing and the axle; and a thrust roller bearing inside of the needle roller bearing in an axial direction.

The invention relates to a wheel bearing assembly, in particular a wheel bearing assembly (1) comprising a wheel hub (10) with an inner toothing (12), a wheel bearing (20) arranged at the wheel hub, a constant-velocity joint (30) with a journal (32), wherein the journal has an outer toothing (33) which is in engagement with the inner toothing (12) of the wheel hub for torque transmission, and a clamping device (40) via which the wheel hub including the wheel bearing is clamped in this way axially against the constant-velocity joint such that a bearing inner ring (21) of the wheel bearing (20) is pressed against an abutment shoulder (34) of the constant-velocity joint (30). Between the bearing inner ring (21) and the abutment shoulder (34) there is arranged a metallic, uncoated and friction-enhanced friction ring (50) for which the coefficient of sliding friction against the contact of the bearing inner ring (21) and the abutment shoulder (34) is at least 80% of the coefficient of static friction, respectively.