A system is disclosed herein including a tow vehicle including and a trailer. The tow vehicle includes a bed having a first surface and an opposing second surface and a receiver assembly coupled to the bed, the receiver assembly extending through the first surface and the second surface. The receiver assembly includes a hollow cylinder having a first end and a second end, the first end of the hollow cylinder coupled to the bed of the tow vehicle and a ball receiver having a semi-spherical shape, the ball receiver coupled to the second end of the hollow cylinder. The trailer includes a deck, a neck coupled to the deck and a trailer coupler coupled to the neck. The trailer coupler includes a trailer ball configured to engage the receiver assembly of the tow vehicle.

A maintenance-free bearing system having self-lubricating features, seals, grooves and slots for use in a cushion hitch assembly for a hitch pull scraper vehicle. An interconnected bearing linkage system having two or more horizontal two-axis combined journal and thrust bearings with self-lubricating liners therein, two or more vertical single-axis sleeve bearings with self-lubricating liners therein and one or more vertical thrust bearing with self-lubricating liners therein, that cooperate with one another to accommodate vertical and horizontal angular movement relative to one another.

A ball hitch includes a base flange, a coupler ball, and a stem portion connected between the coupler ball and the base flange. A lubricant inlet is mounted in the base flange within a recessed indentation. A lubricant outlet in the coupler ball is positioned at a lateral side opposite the lubricant inlet. A lubricant channel extending between the lubricant inlet and the lubricant outlet is canted at an angle through the ball hitch. The ball hitch provides an improvement for lubricant coating of the coupler ball, protection of the lubricant inlet, among other features disclosed herein.

A system is disclosed herein including a tow vehicle including and a trailer. The tow vehicle includes a bed having a first surface and an opposing second surface and a receiver assembly coupled to the bed, the receiver assembly extending through the first surface and the second surface. The receiver assembly includes a hollow cylinder having a first end and a second end, the first end of the hollow cylinder coupled to the bed of the tow vehicle and a ball receiver having a semi-spherical shape, the ball receiver coupled to the second end of the hollow cylinder. The trailer includes a deck, a neck coupled to the deck and a trailer coupler coupled to the neck. The trailer coupler includes a trailer ball configured to engage the receiver assembly of the tow vehicle.

The present invention is a grease pod to simplify and enhance the application of grease to ball hitches used in towing trailers and fifth wheel hitches. The grease pod includes a multi-layered body adapted to fit snugly over the hitch. The pod includes an inner layer and an outer layer, both made from a film, heat-sealed together to form a secure and pressure sensitive enclosure. A premeasured quantity of grease is included in the enclosure and can be available in various formulations such as marine grade grease, lithium, and graphite powder. Upon applying pressure when the trailer coupler or fifth wheel coupling is engaged, the grease pod bursts and releases the grease to evenly coat and lubricate the hitch. The method of use involves placing the pod on the ball hitch and lowering the trailer coupler or engaging the fifth wheel to apply pressure, ensuring precise lubrication.

A coupling socket for coupling to a coupling ball. The coupling socket has a concave coupling receiving area with a main insertion direction for the coupling ball, and a substantially semispherical lubricant cap with an end face edge is arranged in the coupling receiving area, wherein the convex exterior of the lubricant cap contacts the inner wall of the coupling receiving area over the surface thereof, and the concave interior of the lubricant cap has a receiving area for the coupling ball. The coupling socket has an insertion aid in the coupling receiving area, the end face edge of the lubricant cap, when viewed in the main insertion direction, is located behind the insertion aid, and the insertion aid completely covers the end face edge of the lubricant cap.

The present invention is a grease pod to simplify and enhance the application of grease to ball hitches used in towing trailers and fifth wheel hitches. The grease pod includes a multi-layered body adapted to fit snugly over the hitch. The pod includes an inner layer and an outer layer, both made from a film, heat-sealed together to form a secure and pressure sensitive enclosure. A premeasured quantity of grease is included in the enclosure and can be available in various formulations such as marine grade grease, lithium, and graphite powder. Upon applying pressure when the trailer coupler or fifth wheel coupling is engaged, the grease pod bursts and releases the grease to evenly coat and lubricate the hitch. The method of use involves placing the pod on the ball hitch and lowering the trailer coupler or engaging the fifth wheel to apply pressure, ensuring precise lubrication.