Boyd’s Bible Dictionary:

(carry). A two-wheeled vehicle usually drawn by oxen (1 Sam. 6:7-157Now therefore make a new cart, and take two milch kine, on which there hath come no yoke, and tie the kine to the cart, and bring their calves home from them: 8And take the ark of the Lord, and lay it upon the cart; and put the jewels of gold, which ye return him for a trespass offering, in a coffer by the side thereof; and send it away, that it may go. 9And see, if it goeth up by the way of his own coast to Beth-shemesh, then he hath done us this great evil: but if not, then we shall know that it is not his hand that smote us; it was a chance that happened to us. 10And the men did so; and took two milch kine, and tied them to the cart, and shut up their calves at home: 11And they laid the ark of the Lord upon the cart, and the coffer with the mice of gold and the images of their emerods. 12And the kine took the straight way to the way of Beth-shemesh, and went along the highway, lowing as they went, and turned not aside to the right hand or to the left; and the lords of the Philistines went after them unto the border of Beth-shemesh. 13And they of Beth-shemesh were reaping their wheat harvest in the valley: and they lifted up their eyes, and saw the ark, and rejoiced to see it. 14And the cart came into the field of Joshua, a Beth-shemite, and stood there, where there was a great stone: and they clave the wood of the cart, and offered the kine a burnt offering unto the Lord. 15And the Levites took down the ark of the Lord, and the coffer that was with it, wherein the jewels of gold were, and put them on the great stone: and the men of Beth-shemesh offered burnt offerings and sacrificed sacrifices the same day unto the Lord. (1 Samuel 6:7‑15); Amos 2:1313Behold, I am pressed under you, as a cart is pressed that is full of sheaves. (Amos 2:13)).

Concise Bible Dictionary:

The vehicle on which the Philistines sent back the Ark. David in error also used a “new cart” to fetch it from Gibeah: a human arrangement which displeased the Lord (1 Sam. 6; 2 Sam. 6:33And they set the ark of God upon a new cart, and brought it out of the house of Abinadab that was in Gibeah: and Uzzah and Ahio, the sons of Abinadab, drave the new cart. (2 Samuel 6:3)). The same word, agalah, is translated “wagons,” which were sent from Egypt to bring Jacob and his family (Gen. 45:1919Now thou art commanded, this do ye; take you wagons out of the land of Egypt for your little ones, and for your wives, and bring your father, and come. (Genesis 45:19)); and used for the carrying of parts of the tabernacle (Num. 7:33And they brought their offering before the Lord, six covered wagons, and twelve oxen; a wagon for two of the princes, and for each one an ox: and they brought them before the tabernacle. (Numbers 7:3)), where they are called “covered wagons,” but which some prefer to call “litter-wagons.” On the Egyptian and Ninevite monuments many carts are portrayed with two wheels, and some of the wheels were made with spokes.