A fluid management system for a drivetrain includes a first reservoir, a second reservoir, a main suction line, and a second suction line. The first reservoir is positioned in a lower portion of a transmission. The first reservoir has a preselected fluid level. The second reservoir is positioned in a lower portion of the transmission. The second reservoir is separated from the first reservoir by a barrier having an opening. The main suction line has an opening positioned in a lower portion the first reservoir below the preselected fluid level. The second suction line has an opening positioned in a lower portion of the second reservoir.

A highly adaptive bicycle through axle having a spindle and a washer. The washer includes an inner surface and an outer surface that are not parallel to each other, thus accommodating different bicycle specifications.

In one aspect, a wheel hub assembly including a wheel hub body having an interior, bearing assemblies to rotatably connect the wheel hub body to a spindle, and a vent associated with the wheel hub body that opens to the interior of the wheel hub body. The wheel hub assembly further includes an inertia-controlled valve of the vent rotatable with the wheel hub body. The inertia-controlled valve is configured to open in response to rotation of the inertia-controlled valve with the wheel hub body and permit air to flow out of the interior of the wheel hub body.

An axle bridge system has an axle shaft and an axle bridge with a tubular section defining an inside space. The axle shaft is mounted rotatably and extends axially through the inside space, which can be filled at least partially by a lubricating fluid to define a first lubricating fluid space and a first lubricating fluid reservoir. A bearing in the wheel head rotatably supports the axle shaft, an end of which has a flange in contact with the wheel head to define a hollow space. The wheel head defines a second lubricating fluid space forming a second lubricating fluid reservoir, the second lubricating fluid space connected to the bearing for lubricating the bearing. A sealing ring between the axle bridge and the axle shaft blocks the connection between the bearing and the inside space to seal the first lubricating fluid reservoir relative to the second lubricating fluid reservoir.

Methods and systems for selectively engaging a wheel hub to an axle or a shaft of a propulsion source are described. The wheel hub includes a wheel hub disconnect cap that may be rotated to release and engage the wheel hub to the axle. The wheel hub disconnect cap may also traverse in a longitudinal direction to engage and release the wheel hub from the axle or shaft.

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.

The present disclosure relates to a wheel connecting structure and a baby carrier. The wheel connecting structure includes a fixed base, a rotatable base, a rotating shaft and an anti-swing member. The rotatable base is rotatably connected to the fixed base by the rotating shaft. The anti-swing member has an abutting portion. The anti-swing member is arranged on one of the fixed base and the rotatable base, and the abutting portion abuts against the other of the fixed base and the rotatable base. The abutting portion is provided with a lubricating structure.

An axle including a central housing, an axle arm fastened to the central housing via multiple first fasteners, and an oil baffle fixed to the central housing via at least one fastening element that is coaxial with at least one fastener from the multiple first fasteners and at least one hole from multiple pre-existing holes of the central housing.