Abstract: In an amphibious ATV, the wheel bearings are housed in a spherical mounting-structure, because of possible angular misalignment. The spherical mounting-structure comprises separable primary and secondary elements. The new system provides that both elements are axially wide, being e.g as wide as the outer-race of the bearing. Now, the elements are highly resistant to every distortion, which means the mounting-structure can seal the bearings very effectively—both as to keeping dirt and water out, and keeping lubricant in.

Abstract: In an amphibious ATV, the wheel bearings are housed in a spherical mounting-structure, because of possible angular misalignment. The spherical mounting-structure comprises separable primary and secondary elements. The new system provides that both elements are axially wide, being e.g as wide as the outer-race of the bearing. Now, the elements are highly resistant to every distortion, which means the mounting-structure can seal the bearings very effectively—both as to keeping dirt and water out, and keeping lubricant in.

Abstract: The drive-chain tensioner is automatically self-adjusting. A chain-slipper is guided to follow wear-movement of the chain. A cam is mounted on the follower. If slack in the chain increases, the cam is rotated by a cam spring to a position in which a larger radius of the cam lies under the follower. The cam provides a solid abutment that prevents the chain from compressing the tensioning springs and becoming slack when drive is reversed. For compactness and good load distribution, the chain is supported on a saddle between two cams. The cams have ratchet teeth.