Importance

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Abstract

A hub assembly for oil lubricated hubs and a conversion kit to convert grease lubricated hubs to oil lubricated hubs. A hub assembly can include a hub defining a passageway that the axle spindle can pass through; the passageway also defines an inner bearing race, and an outer bearing race for receiving inner and outer bearings. The hub further defines an inner seating surface and an outer seating surface. The inner seating surface receives an inner seal and the outer seating surface can receive a cap or an extension and a cover. The extension and cover in a preferred embodiment serve many of the same purposes as a single cap. The cap has an axis and preferably defines a passageway along the same axis, and it has a wall member with a seating surface for engaging the seating surface of the hub. A stopper is provided in the passageway in the cap. In a preferred embodiment, an extension and cover is used in place of the cap. In a preferred embodiment, a removable stopper is placed in the passageway of the cover. For a conversion kit to convert grease lubricated hubs to oil lubricated hubs, only certain components need to be provided, and the hub and bearings of an existing unit are used.

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First Claim