Abstract: A single strand rolling mill has successive pairs of work rolls arranged to roll rod and bar products in a twist-free manner. The work rolls are carried on roll shafts included as part of roll packages which are detachably mounted to gear housings, and the gear housings contain intermediate drive shafts and intermeshed gears connected via line shaft segments and intermeshed bevel gears to a primary mill drive. The gear housings are carried on a base which is made up of a flat vertically upstanding structural member standing on edge and joined to an underlying base plate. The structural member extends beneath and in parallel relationship to the rolling line. Rib members extend laterally away from and are spaced along opposite sides of the structural member. The rib members are joined on edge to both the structural member and the base plate and have upper support edges on which the gear housings are secured.

Abstract: For use in combination with a work roll mounted on the end section of a shaft by means of a sleeve member axially inserted in a wedged operative position therebetween, a fluid actuated tool assembly removably engageable with the shaft and sleeve member for axially moving the sleeve member into and out of its operative position. The tool assembly preferably comprises a piston contained in a cylinder which during use is movable axially relative to the piston. At a first end of the tool assembly, the piston is removably attachable to the shaft and the cylinder is arranged to abut the sleeve. At an opposite second end of the tool assembly, the cylinder is removably attachable to the sleeve, and the piston is arranged to abut the shaft. The piston and cylinder have cooperating internal surfaces arranged to define a chamber adapted to receive fluid under pressure, the said fluid pressure being operative to move the cylinder relative to the piston.