A wheel case for a vibratory device. A vibratory device for vibrating aggregate material includes a frame and a rotating shaft extending transversely across the frame, with the shaft being rotatably supported on bearings and having a wheel moveable through a circular path. The bearings and the wheel are disposed in a wheel case which includes a housing having a base, a peripheral sidewall, and a cover, with the housing being sized to receive therein the wheel and the bearings and further being adapted to contain therein a quantity of lubricating oil for lubricating the wheel and the bearings. A baffle is mounted to either the housing base or the housing cover, and extends inwardly into the housing and includes a portion disposed adjacent the wheel path. The baffle is adapted to distribute lubricating oil to the bearings in response to rotation of the wheel.