A bicycle wheel hub for mounting a brake disc in relation to a spoke-holding flange. The hub has a connection portion with a first annular sector that is axially external with respect to the spoke-holding flange and a second annular sector that is axially external with respect to the first annular sector. A circumferential groove axially arranged between the first and the second annular sectors.

A bearing device for a wheel is disclosed. The bearing device includes: an outer ring; a hub ring having at least one inner ring, and double rows of inner rolling surfaces on an outer periphery of the hub ring; double rows of balls in between respective rolling surfaces of the outer ring and the hub ring; and an outer seal member. The bearing device further includes: core metal having a circular cylinder section and a circular plate section at an opening of the outer ring; and a lip having an elastic body and being positioned on the circular plate section. An annular dam section having an elastic body and protruding further radially outward than an outer peripheral surface of the outer ring extends from the circular plate section, and an outer member-side eaves section has a circular cylindrical shape and protrudes axially so as to surround the outer ring.

A cap is provided for covering the threaded end of a removable spindle, having a cover with thread engaging tabs extending from a reservoir basin. The tabs include surface projections for retaining the cap to the spindle threads. The tabs are formed to fit within available slots of a slotted hex nut connected to the spindle. The cap includes a separately formed skirt or guard to make flexible surface contact with the torsion arm or spindle supporting structure. The skirt can include a sacrificial anode region to provide cathodic protection for the spindle threads and spindle retention nut. The skirt is removable from the cap so that the cap can be reused with a new skirt. The cap is formed to be used with existing spindle assemblies and to be reusable.

A final drive seal guard for a track-type tractor comprising a base component adapted to be stationarily fixed to the tractor and to surround a portion of a spindle housing of the final drive, a sprocket component adapted to be carried on and surround a portion of a sprocket hub of the final drive that rotates about an axis, and an intermediate component adapted to be bolted over the exterior of one of said base and sprocket components and surround portions of both of said base and sprocket components, the intermediate component and another of said base or sprocket components being mutually arranged to form a radially extending sealing gap at a potential path of debris into the guard at a location free of a relatively long axial gap upstream in said potential path.

A hub built-in type constant velocity apparatus includes a hub housing with a constant velocity joint coupled inwardly, an internal race coupled to an external circumferential surface of the hub housing, and a pre-load ring coupled to the external circumferential surface of the hub housing and located on a side of the internal race, wherein an end portion of the hub housing is formed to be rolled upwards toward the pre-load ring to form a forming portion coupled to the pre-load spring for applying pressure to the pre-load ring and the internal race.

A low impact turf wheel having a wheel rim including an inner and outer surface, a plurality of pegs extending radially outward from the outer surface of the wheel rim, wherein the plurality of pegs maintain the wheel rim above an area of turf, and a hub. A turf wheel having a wheel rim having an inner and outer surface, a plurality of pegs extending radially outward from the outer surface of the wheel rim, wherein the peg comprises a stem, a collar and a lug, and wherein the lug includes a limited surface area to provide a ground contacting tread, and a hub.

An article movement system includes an article and at least one ball wheel. The article has first and second article surfaces meeting at a first article edge. The ball wheel is located along the first article edge and includes a ball, a bearing arrangement and a shell. The ball engages a surface underlying the article, the bearing arrangement supports the ball for omni-directional rotational movement, and the shell is located along the first article edge and contains the ball and the bearing arrangement. The shell defines a non-circular ball opening through which a portion of the ball extends to contact the underlying surface. The article, the bearing arrangement and the shell are configured such that the ball wheel is able to support the article for omni-directional rolling motion over the underlying surface with either of the first and article surfaces parallel thereto, and at any orientation therebetween.

The wheel bearing device includes a hub shaft including a flange portion on one axial side of the hub shaft, an outer ring, a plurality of rolling elements, a cage, and a seal member attached to an end portion of the outer ring on the one axial side. A side surface of the flange portion on another axial side of the hub shaft includes a first side surface having first roughness and a second side surface having second roughness larger than the first roughness. The seal member includes a lip provided facing the second side surface, and a distal end of the lip includes a worn surface that is worn by being in sliding contact with the second side surface.

The present disclosure provides an aluminum alloy coating, an aluminum alloy wheel hub and a spraying method of an aluminum alloy wheel hub. The aluminum alloy coating includes a base powder layer, a main body layer and a transparent powder layer from inside to outside. The main body layer includes at least two prime coat layers and at least two colored paint layers which are superposed in a preset order.

A noncorrosive, water-impermeable gasket is used between a wheel rim and a hub assembly so that they do not corrode together making their separation difficult or impossible. The gasket includes a gasket flange with a gasket bolt pattern that is alignable with a hub bolt pattern of the hub assembly and a rim bolt pattern of the wheel rim.