A wheel rim assembly includes a hub with a case and two flanges are formed on two ends of the case. Multiple spoke units are connected between the two flanges of the hub and the inner periphery of the rim. Each spoke unit includes a first connection member and the first end of an X-shaped spoke extends from the first connection member. Each first connection member includes a first recessed area and a second recessed area respectively defined in the outside and the inside thereof. The second recessed area is matched with the flange corresponding thereto. Each first connection member includes an engaging recess and a protrusion. The protrusion of one first connection member is engaged with the engaging recess of the next first connection member. Two covers are respectively connected two ends of the hub. The second end of each spoke is inserted into reception recess of the rim.

The vehicle wheel cover retention system comprises a wheel including a first hub hole provided therein which has a retention member formed in a generally axially extending portion thereof. The wheel cover includes a second hub hole provided therein. The second hub hole includes an annular axially extending segmented projection. The segmented projection includes a chamfered outer circumferential surface and a shoulder provided thereon. During assembly, the segmented projection deflects radially inward as the wheel cover is initially installed and moved toward the retention member and then as the wheel cover is further advanced the segmented projection moves radially outward to enable the shoulder to engage the retention member to thereby secure the wheel cover to the wheel. The center cap includes an annular axially extending projection. The center cap is then installed and its annular extending projection engages with the inside of the segmented projection of the wheel cover, thus preventing it to further deflect radially inward and thereby locking the wheel cover to the wheel.

A wheel hub assembly for mounting on an upright of a vehicle has a flanged outer ring provided with a tubular mounting portion inserted over a first axial length (L1) inside a seat of the upright; and a plastic cover having a mounting portion which is also engaged inside the tubular portion, wherein the mounting portion extends outside the tubular portion over a second axial length (L2) which, together with the first axial length (L1), covers less than a mounting length (L) inside the seat.

A hubcap and rotary union, the hubcap having the outer face forming a smooth-bore at the center of the face, and a rotary union body having a smooth lug, the smooth lug being rotatably disposed in the bore.

A rotary union for a tire inflation system includes a body having a first end and a second end, the first end comprising threads for threaded coupling to a hubcap, the body forming a fluid channel extending from the first end to a surface of the body; a sleeve rotatably disposed on the body, the sleeve comprising a hose connection port, the sleeve being sealed to the body such that fluid may flow along a sealed path from the fluid channel to the hose connection; and a tubular member having a first end sealingly disposed in the fluid channel at the first end of the body.

Apparatuses, systems, and methods are provided for improving fuel efficiency of a vehicle using a mountable wheel cap coupleable to a wheel. The mountable wheel cap includes a center section and an outer section. The outer section includes a plurality of tabs extending outwardly from the center section, and at least one gripper section coupled to at least one of the plurality of tabs, the at least one gripper section including a gripper configured to be placed in contact with the at least one of the outer section and/or the outer lip to secure the mountable wheel cap to the wheel.

An automobile wheel having a hub and a cap assembly configured to removably attach to the hub is provided herein. The cap assembly includes a base component, a lug hole cover, and a center cap. The base component is removably coupled to the hub, and includes a cylindrical portion with an outer threaded surface that extends outward from the hub when the base component is coupled to the hub. The lug hole cover removably fits over the cylindrical portion of the base component to cover the plurality of lug hole openings of the hub. Additionally, the center cap is removably coupled to the base component and retain the lug hole cover against the hub.

Apparatuses, systems, and methods are provided for improving fuel efficiency of a vehicle using a mountable wheel cap coupleable to a wheel. The mountable wheel cap includes a center section and an outer section. The outer section includes a plurality of tabs extending outwardly from the center section, and at least one gripper section coupled to at least one of the plurality of tabs, the at least one gripper section including a gripper configured to be placed in contact with the at least one of the outer section and/or the outer lip to secure the mountable wheel cap to the wheel.

The invention concerns wheel center cap assemblies that include an adapter and a wheel center cap that registers with, or is integral with, the adapter. In some embodiments, the adapter includes tracks and lug sleeves that couple with lugs of the vehicle wheel. Each of the lug sleeves is slidably coupled to each of the tracks of the adapter, and each of the lug sleeves is adapted to move along a length of the tracks; this helps ensure that the adapter is universally compatible with multiple wheel models. In other embodiments, an adapter has a body adapted to be inserted within the center aperture of the wheel. A posterior support registers with the adapter and is sandwiched between a rotor of the vehicle and the wheel to secure the adapter inside the aperture of the wheel; a removable wheel center cap registers with the adapter to adorn the wheel.

The invention concerns wheel center cap assemblies that include an adapter and a wheel center cap that registers with, or is integral with, the adapter. In some embodiments, the adapter includes tracks and lug sleeves that couple with lugs of the vehicle wheel. Each of the lug sleeves is slidably coupled to each of the tracks of the adapter, and each of the lug sleeves is adapted to move along a length of the tracks; this helps ensure that the adapter is universally compatible with multiple wheel models. In other embodiments, an adapter has a body adapted to be inserted within the center aperture of the wheel. A posterior support registers with the adapter and is sandwiched between a rotor of the vehicle and the wheel to secure the adapter inside the aperture of the wheel; a removable wheel center cap registers with the adapter to adorn the wheel.