Abstract: A sealed multi-row roller bearing device for rolling mills, wherein the opposite ends of the inner race are extended, and a plurality of inner annular bodies which are of one of the groups of elements defining labyrinths are fitted on the extension of the inner race, while outer annular bodies which are of the other group of elements defining labyrinths are removably connected to the end of the outer race.

Abstract: The invention relates to a taper journal bearing for rolls, used in rolling mills. The bearing includes a bushing installed in a roll bearing box, a sleeve closely fitted onto a taper journal of the roll, for supporting a load thereof, an oil film deposited between the bushing and the sleeve, and means for attaching the sleeve to the roll at an area other than that directly subjected to a rolling force. The invention eliminates the increased variation in the reduction force taking place at each rotation of the roll, due to a deformation of the sleeve. The latter is caused by a clearance at a keyway formed in the sleeve, for a key arranged between the sleeve and the taper journal.