An annular support structure for a track vehicle is disclosed herein. The annular support structure includes a first piece and a second piece. The first piece includes a first hub portion, a first web extending radially outward from the first hub portion, and a first outer body extending radially outward from the first web. The second piece includes a second hub portion, a second web extending radially outward from the second hub portion, and a second outer body extending radially outward from the second web. The first piece and the second piece joined together at an inner joint located proximate to the first hub portion and the second hub portion and the first piece and the second piece adjacent to each other at an outer joint located proximate to the first outer body and the second outer body.

An annular support structure for a track vehicle is disclosed herein. The annular support structure includes a first piece and a second piece. The first piece includes a first hub portion, a first web extending radially outward from the first hub portion, and a first outer body extending radially outward from the first web. The second piece includes a second hub portion, a second web extending radially outward from the second hub portion, and a second outer body extending radially outward from the second web. The first piece and the second piece joined together at an inner joint located proximate to the first hub portion and the second hub portion and the first piece and the second piece adjacent to each other at an outer joint located proximate to the first outer body and the second outer body.

A track roller includes a body having an annular configuration defining an axis of rotation, a radial direction, and a circumferential direction disposed about the axis of rotation. The body also defines a thru-hole extending axially through the body that is centered on the axis of rotation. A blind void is disposed annularly about the axis of rotation, the blind void being spaced radially away from the thru-hole a predetermined minimum distance, forming a cantilever portion defining a flex point and a flex radial distance measured radially from the flex point to the thru-hole.

A track roller includes a body having an annular configuration defining an axis of rotation, a radial direction, and a circumferential direction disposed about the axis of rotation. The body also defines a thru-hole extending axially through the body that is centered on the axis of rotation. A blind void is disposed annularly about the axis of rotation, the blind void being spaced radially away from the thru-hole a predetermined minimum distance, forming a cantilever portion defining a flex point and a flex radial distance measured radially from the flex point to the thru-hole.

A resistance to wear, edge-cutting or other deterioration of a track for a vehicle and/or other aspects of the track may be enhanced, including by enhancing internal reinforcements (e.g., cores) of the track, such as by providing certain flexibility characteristics to these internal reinforcements of the track, and/or by monitoring the track and controlling the vehicle, notifying a user, etc.

The present invention relates to a water energy cleaner for a pool, including a housing which is provided with a water inlet in the middle position of the bottom; a hydraulic motor used for providing power for the cleaner; travelling mechanisms used for travelling; a reversing mechanism used for changing a travelling direction; and a rotating swing joint mechanism used for connecting an external water outlet pipe and capable of swinging and rotating back and forth relative to the housing, The rotating swing joint mechanism of the present invention can swing and rotate back and forth relative to the travelling direction of the cleaner, which is beneficial for preventing the cleaner from being easily affected by a water pipe when the cleaner climbs up the wall of the pool for cleaning.

The present invention relates to a water energy cleaner for a pool, including a housing which is provided with a water inlet in the middle position of the bottom; a hydraulic motor used for providing power for the cleaner; travelling mechanisms used for travelling; a reversing mechanism used for changing a travelling direction; and a rotating swing joint mechanism used for connecting an external water outlet pipe and capable of swinging and rotating back and forth relative to the housing, The rotating swing joint mechanism of the present invention can swing and rotate back and forth relative to the travelling direction of the cleaner, which is beneficial for preventing the cleaner from being easily affected by a water pipe when the cleaner climbs up the wall of the pool for cleaning.

A replacement kit for a rotating member attachment assembly includes a first thrust washer defining a first thrust washer diameter and a first thrust washer axial thickness, and a first end cap defining a first end cap axial thickness and including a first end cap circumferential surface defining a first end cap diameter that is greater than the first thrust washer diameter. The first end cap circumferential surface includes external threads.

A replacement kit for a rotating member attachment assembly includes a first thrust washer defining a first thrust washer diameter and a first thrust washer axial thickness, and a first end cap defining a first end cap axial thickness and including a first end cap circumferential surface defining a first end cap diameter that is greater than the first thrust washer diameter. The first end cap circumferential surface includes external threads.

A replacement kit includes a first coupler that includes a first inner axial end, a first outer axial end, and a first coupler attachment portion including a first forked oblong structure that defines a first minor axis with a first minor axis length, and a first major axis with a first major axis length that is greater than the first minor axis length, and including a first prong, a second prong disposed axially away from the first prong, and defining a first predetermined axial distance, and a first cam surface disposed between the first prong and the second prong.