Agricultural implement hitches with rotational motion

A seeding system, comprising:

• a seeder configured to be towed by a work vehicle and comprising a first hitch having an end and a clevis coupled to the end, wherein the clevis comprises a first connector end having a first opening and a second connector end having a second opening;
• an air cart configured to be towed by the work vehicle and comprising a second hitch having a connector;
• a pin configured to be disposed through the first opening and the second opening of the clevis and the connector of the second hitch to couple the seeder to the air cart, wherein the clevis is configured to rotate about a rotational axis that is parallel with a direction of travel of the seeder and the air cart when being towed by the work vehicle;
• a first collar configured to be disposed about a first end of the pin extending through the first opening;
• and
• a second collar configured to be disposed about a second end of the pin extending through the second opening, wherein the first collar and the second collar are configured to block rotational movement of the pin about a longitudinal axis of the pin.

A method for coupling a first agricultural implement to a second agricultural implement, comprising:

• providing a clevis coupled to an end of a first hitch of the first agricultural implement, wherein the clevis comprises a first connector end having a first opening and a second connector end having a second opening;
• inserting a connector of a second hitch of the second agricultural implement between the first connector end and the second connector end of the clevis;
• disposing a pin through the first opening and the second opening of the clevis and the connector of the second hitch to couple the first agricultural implement to the second agricultural implement, wherein the clevis is configured to rotate about a rotational axis that is parallel with a direction of travel of the first agricultural implement and the second agricultural implement when being towed by a work vehicle;
• disposing a first collar about a first end of the pin extending through the first opening;
• and
• disposing a second collar about a second end of the pin extending through the second opening, wherein the first collar and the second collar are configured to block rotational movement of the pin about a longitudinal axis of the pin.