4-Wheel Diamond Pattern – All Rigid

Four rigid casters are set in a diamond pattern. Used on tilt-type cart configurations.

Benefit: This is the lowest cost configuration for carts and trucks. It can also pivot on the center wheels to turn or do complete 360° rotations.
Drawback: It cannot carry heavy loads, because only three casters are in contact with the floor at one time (tilt type cart) and it cannot be pushed sideways.