An apparatus for a vehicle is provided that has an axle and a spindle sleeve with a spindle sleeve inner surface axis coaxial with the axis of the axle, and a spindle sleeve outer surface axis not coaxial with the axis of the axle. A hub has an axis coaxial with the spindle sleeve outer surface axis, and the hub at least partially defines a chamber. First and second ports extend through a wall of the hub to the chamber. The hub rotates about the spindle sleeve through the aid of two bearings. Lubricant is present within the chamber, and the first port provides a pathway for a pressurized fluid to be introduced into the chamber to force the lubricant out of the chamber via the second port.

Methods and apparatus for attaching a center cap a wheel of a motor vehicle. A specialized lug nut may replace existing lug nuts to provide a threaded receiving area for a screw. The screw may be used to secure a cap in place. Some embodiments include an adapter to match a lug bolt pattern to a cap diameter size. In preferred embodiments, a lug nut is provided of specific designs, size and shape to be installable to act as a mechanism to secure a wheel to a vehicle and also act as a holder for the screw to retain the cap. The center cap may then slide onto the lug nuts (or extension that attach to the lug nuts) and then stay on by tightening a screw through the top of one or more lug nuts on each wheel.

The present disclosure is directed to a wheel cover that is coupled to a wheel of a vehicle utilizing a mounting assembly that has a bearing block. A retainer assembly in combination with the bearing block of the mounting assembly allows the wheel cover to be coupled to the wheel in a manner such that the wheel cover does not rotate with the forward and backward rotation of the wheel when the vehicle is being driven. The wheel cover covers the wheel and partially covers a gap or space between a tire of the wheel and a fender of the vehicle, which increases the aerodynamic performance of the vehicle. The retainer assembly provides at least one degree of freedom such that the wheel cover may move with the wheel when steering the vehicle in a leftward direction and a rightward direction.

A cover assembly for removably covering a hub of a wheel rim includes a ring-shaped outer cover defining a cover central hole, and a connector having a connector outer annular wall, a connector inner annular wall extending through the cover central hole for connection with a hub inner peripheral wall of the hub and provided with a first external thread for threadedly connecting with a first internal thread of the hub, and an annular flange extending from a junction of the connector inner and outer annular walls. A first elastic ring is sleeved on the connector inner annular wall and is configured to be disposed between and abut against the connector inner annular wall and the hub inner peripheral wall.

A cover assembly for removably covering a hub of a wheel rim includes a ring-shaped outer cover defining a cover central hole, and a connector having a connector outer annular wall, a connector inner annular wall extending through the cover central hole for connection with a hub inner peripheral wall of the hub and provided with a first external thread for threadedly connecting with a first internal thread of the hub, and an annular flange extending from a junction of the connector inner and outer annular walls. A first elastic ring is sleeved on the connector inner annular wall and is configured to be disposed between and abut against the connector inner annular wall and the hub inner peripheral wall.

A wheel having a hub portion disposed in a center of the wheel, a center bore disposed at the center of the wheel and disposed within a perimeter of the hub portion, a center bore perimeter wall disposed around a perimeter of the center bore and a center bore profile nested within the center bore perimeter wall, the center bore profile having a snap cap engaging element configured to secure a snap cap and a CR adapter thread configured to engage with a lower thread of a CR adapter, and a CR adapter configured to attach a hex cap to the CR adapter thread. A lug cover may also be secured to the hex cap. The center bore profile allows for the selective utilization of either an ESR snap cap or a hex cap as part of a wheel, based upon application needs or aesthetic preference.

A wheel having a hub portion disposed in a center of the wheel, a center bore disposed at the center of the wheel and disposed within a perimeter of the hub portion, a center bore perimeter wall disposed around a perimeter of the center bore and a center bore profile nested within the center bore perimeter wall, the center bore profile having a snap cap engaging element configured to secure a snap cap and a CR adapter thread configured to engage with a lower thread of a CR adapter, and a CR adapter configured to attach a hex cap to the CR adapter thread. A lug cover may also be secured to the hex cap. The center bore profile allows for the selective utilization of either an ESR snap cap or a hex cap as part of a wheel, based upon application needs or aesthetic preference.

A rim cover assembly having a waterproof structure according to an embodiment of the present invention includes a rim of which an outer wheel is surrounded by a tire, wherein a shaft passes through and is connected to a center of the rim, a cover coupled to the rim to seal an interior of the rim, tire separation prevention steps formed on the rim and the cover to prevent separation of the tire, and a bolt coupling portion which couples the cover and the rim, wherein the tire separation prevention steps include a first tire separation prevention step, which is integrally formed with the rim and protrudes from one side of the rim and a second tire separation prevention step integrally formed with the cover coupled to the other side of the rim, and the bolt coupling portion may be formed in the second tire separation prevention step.

A rim cover assembly having a waterproof structure according to an embodiment of the present invention includes a rim of which an outer wheel is surrounded by a tire, wherein a shaft passes through and is connected to a center of the rim, a cover coupled to the rim to seal an interior of the rim, tire separation prevention steps formed on the rim and the cover to prevent separation of the tire, and a bolt coupling portion which couples the cover and the rim, wherein the tire separation prevention steps include a first tire separation prevention step, which is integrally formed with the rim and protrudes from one side of the rim and a second tire separation prevention step integrally formed with the cover coupled to the other side of the rim, and the bolt coupling portion may be formed in the second tire separation prevention step.

The present disclosure is directed to a wheel cover that is coupled to a wheel of a vehicle utilizing a mounting assembly that has a bearing block. A retainer assembly in combination with the bearing block of the mounting assembly allows the wheel cover to be coupled to the wheel in a manner such that the wheel cover does not rotate with the forward and backward rotation of the wheel when the vehicle is being driven. The wheel cover covers the wheel and partially covers a gap or space between a tire of the wheel and a fender of the vehicle, which increases the aerodynamic performance of the vehicle. The retainer assembly provides at least one degree of freedom such that the wheel cover may move with the wheel when steering the vehicle in a leftward direction and a rightward direction.