Abstract: A full contact seal for a bearing assembly having an axially outer shield and an annular sealing ring which extends radially inwardly from the outer bearing race axially inward of and adjacent to the shield and which is provided with a radially outwardly facing groove positioned adjacent to the shield. The contact seal comprises a resilient annular sealing member having a base portion adapted to seat in the groove and axially outer and inner sealing lips compressively engaging and bridging the axially facing surfaces of the shield and the sealing ring, the sealing member being resiliently expandable and contractable for insertion into the groove.

Abstract: A conveyor trolley assembly consisting of a trolley bracket having an axle carrying a hub, and an annular wheel carried on a bearing interposed between the hub and the wheel, is provided with a four-part, moisture resistant seal for the side of the bearing facing the trolley bracket. The seal is composed of an annular shield mounted on the axle and interlocked with the trolley bracket, a slinger seal mounted on the wheel inside of the shield, and second and third lubricant seals mounted on the wheel hub and on the wheel, respectively. Moisture which enters around the periphery of the shield either gravitates to a drain opening or is expelled by the action of the slinger seal.

Abstract: A conveyor chain drive unit having a main frame formed essentially by an H-section structural member whose flanges provide a pair of vertical plates located on either side of the path of travel of the conveyor chain. A bearing mounted on one of these plates supports the vertically extending output shaft of a reducer with the reducer housing positioned above the main frame. Connected to the reducer housing is a movable frame which extends radially outward from the axis of the reducer output shaft and supports a motor for driving the reducer. The conveyor chain is engaged by a caterpillar type of drive chain trained about a drive sprocket on the reducer output shaft and about a take-up sprocket and a back-up bar both mounted on the one side plate of the main frame. A roller nest carried by the opposite main frame side plate holds the conveyor chain in engagement with the drive chain.

Abstract: A conveyor chain drive unit having a main frame formed essentially by an H-section structural member whose flanges provide a pair of vertical plates located on either side of the path of travel of the conveyor chain. A bearing mounted on one of these plates supports the vertically extending output shaft of a reducer with the reducer housing positioned above the main frame. Connected to the reducer housing is a movable frame which extends radially outward from the axis of the reducer output shaft and supports a motor for driving the reducer. The conveyor chain is engaged by a caterpillar type of drive chain trained about a drive sprocket on the reducer output shaft and about a take-up sprocket and a back-up bar both mounted on the one side plate of the main frame. A roller nest carried by the opposite main frame side plate holds the conveyor chain in engagement with the drive chain.