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.

A vent for a hub cap may include a screen and fluid channels for release of pressurized fluid in a hub cap.

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.

In an aspect of the present disclosure there is provided a temperature monitoring system, a non-transitory computer-readable storage medium for a wheel assembly and a monitoring device engageable with the hub of a wheel assembly. There is provided a sensing unit mounted proximal to at least one or more bearings of a wheel hub supporting rotation relative to a spindle, and configured for detecting and transmitting at least temperature and motion information thereof. A receiver is configured for wirelessly receiving the at least temperature and motion information from the sensing unit and wirelessly re-transmitting the information to a portable electronic communication device.

A marked wheel rim is provided, including: a rim body and a mark. The rim body includes an outer surface. The mark is embedded on the outer surface and includes an outer peripheral edge adjacent to the rim body. The outer peripheral edge is non-protrusive beyond the outer surface. A method for manufacturing the marked wheel rim is further provided.

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 vent plug for a hub cap is provided. The vent plug includes a cover and base forming a chamber. A vent plug body extends from the base and forms a cavity. A shield is coupled to the vent plug body. The shield comprises an annularly extending disc that traverses the cavity. The shield includes a connecting surface to connect the shield to the vent plug body. The shield provides a lubrication/liquid barrier to inhibit lubrication (or other liquid) from entering the cavity formed by the vent plug body and the chamber. The connection between the shield and the vent plug body allows a gas (typically air) to vent past the shield into the cavity and, when pressure is sufficiently high, to the chamber and eventually atmosphere.

A vehicle including at least one wheel and at least one hub assembly associated with the at least one wheel. The at least one hub assembly includes a hubcap. The hubcap has a transparent body configured for housing a lubricant, a fill port, and at least one continuous indication feature such that a lubricant volume is indicated in any orientation of the hubcap.

Aerodynamic wheel covers may include a hub assembly coupled with a hub of a large vehicle, such as a truck. A base assembly may be coupled to the hub assembly, and a disk assembly may be coupled with the base assembly such that removal and installation of the disk assembly may be accomplished without tools.

A streamlined tailfin pivotably attached to a shaft-shaped member disposed on a vehicle provides for reduced drag in winds varying in direction impinging thereon.