Abstract: A mechanical jack for lifting an object including a lever, a base and a fulcrum disposed between the lever and the base and a post for supporting the object being lifted with the post pivotally attached to the lever and a rod movably disposed between the post and the lever and the post cooperating with the lever, the base and the fulcrum is disclosed. The mechanical jack lifts and supports a wide variety of objects including, but not limited to, a snow plow blade, a sofa, a desk, a small building, a boat, a snowmobile, an aircraft, a filing cabinet, a stove, a table and other such loads. An additional feature of the mechanical jack includes a cup member disposed near a second end of the lever which faciliates lifting objects which are inconvenient or difficult to lift. Another feature of the mechanical jack includes a clasp disposed near the first end of the lever for use for assisting in the attachment of an object such as a snow plow blade to a “V” plate mounted on a vehicle.

Abstract: A bearing and wheel hub retention system adapted for use in a wheel end assembly includes a spindle, a wheel hub adapted to be supported and connected to the spindle for rotation therewith, a bearing assembly adapted to rotatably support the spindle and the wheel hub relative thereto, and a collar. The spindle is provided with an annular groove formed in an outer surface thereof. The groove includes a pair of opposed side walls and a base wall. At least one of the side walls of the groove is an angled side wall. The collar is disposed in the groove of the spindle, and includes at least one angled side wall which cooperates with the angled side wall of the groove so as to produce a ramp like action which is operative to secure the spindle and the wheel hub together and also to preload the bearing assembly to a predetermined preload.