Abstract: A taper journal bearing for rolls for use in rolling mills including a keying arrangement for keying the roll neck sleeve to the roll neck. The bearing includes a bushing housed in a roll bearing chock, a sleeve closely fitted onto a tapered journal or roll neck of the roll, an oil film deposited between the bushing and the sleeve, and a key arrangement for fixing the sleeve to the roll wherein a flat is machined on the outer end of the taper on the surface of the taper journal of the roll in parallel to the taper with this flat underlying one end of the sleeve at the outer end of the load zone of the roll neck. A keyway is provided in one end of the sleeve such that it is open to and in registration with the flat machined on the roll neck taper. A key is slidably received in the keyway and has a tapered flat surface in sliding engagement with the flat on the roll taper to create a wedging action against the flat when the key is urged into the keyway.

Abstract: In a mill roll bearing assembly, wherein a mill roll neck is coaxially received in a bearing sleeve journaled for rotation therewith in a housed bearing, and which further includes a sleeve retainer secured to the annular outside end of the bearing sleeve, an inspection passage is provided through an upper end portion of the bearing housing, which reveals the then rotatably positioned uppermost end portion of the sleeve end retainer where it annularly mates with the bearing sleeve and a removable closure is provided for the passage. A second inspection passage is also provided through the end of the sleeve retainer near the outer peripheral edge thereof, which reveals a portion of the outside ends of the sleeve and roll neck where they annularly mate. A feeler gauge is then inserted through the passages when aligned, to check whether the roll neck is fully seated in the bearing sleeve.