Goss Graphic Systems Limited

Goss International Corporation

Radoslaw Kulesza

Thomas W Orzechowski

Thaddeus A Niemiro

Thaddius A Niemiro

A bearing assembly for use on a printing press is disclosed. A printing press includes a support frame. A shaft having a first end and a second end fixedly attached to the support frame, the shaft arranged to define a longitudinal axis relative to the support frame. A cylinder, the cylinder having a cylinder bore formed therethrough; and a bearing assembly having an outer circumferemce and an inner bore, the outer circumference sized insertion within the cylinder bore and the inner bore sized to rotatably engage the shaft. The bearing assembling includes an adjustment assembly including a first tapered portion and a second tapered portion, the first and second tapered portions cooperate to permit angular adjustment of the cylinder relative to the longitudinal axis of the shaft, the angular adjustment of the cylinder being about an axis perpendicular to the support shaft longitudinal axis.

Bearing support system for a printing press having cantilevered cylinders

A bearing assembly for use on a printing press is disclosed. The printing press includes a frame. A support shaft is mounted to the frame and includes a pair of ends, with the support shaft defining a longitudinal axis. A cylinder is provided, and the bearing assembly rotatably supports the cylinder on the support shaft. The bearing assembly is adapted to permit angular adjustment of the cylinder relative to the longitudinal axis of the support shaft. The angular adjustment of the cylinder is effected about an axis perpendicular to the longitudinal axis of the support shaft.

A bearing assembly for rotatably supporting the cylinder on a printing press is disclosed. The printing press comprises a frame, a support shaft, a cylinder, and the bearing assembly. The support shaft includes an inner fixed end attached to the frame, a free end disposed outwardly away from the frame, and an interconnecting central portion. The bearing assembly rotatably supports the cylinder on the support shaft The bearing assembly includes an inboard bearing set secured to the support shaft adjacent the central portion, and further includes an outboard bearing set secured to the support shaft adjacent the free end. A portion of the bearing assembly is adapted to permit angular adjustment of the cylinder about an axis perpendicular to the support shaft longitudinal axis.

In order to facilitate removal and replacement of blanket and impression sleeves in a rotary offset printing press, the blanket and plate cylinders are supported in cantilever fashion. The cantilevered cylinders allow axial removal and replacement of the blanket and impression sleeves without temporary support of the cylinder and without removal of any bearings. Each cylinder is rotatably supported on a cantilevered support shaft having a bore therethrough. A drive shaft operatively connected to a drive motor extends through the support shaft bore and engages the inner surface of the generally hollow cylinder. A blanket or impression sleeve mounted on the cylinder is removable using compressed air, which is routed through a bore in the drive shaft and through a plurality of radially oriented passage in a flange on the end of the drive shaft. Each radial passage communicates air to an exit port on the surface of the cylinder, which introduces enough air between the cylinder and the sleeve to permit the sleeve to slide freely for axial removal and replacement.

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Westmont, IL, United States of America

Radoslaw Kulesza