Abstract: A pivoting ball bearing. The ball bearing includes a first race and a second race and one or more rows of balls disposed therebetween. The first race includes a groove configured to have at least one row of balls track therein at a continuously variable circumferential tracking path while the first race rotates with respect to the second race. Pivoting of the first race with respect to the second race can occur by the balls shifting their circumferential tracking path within the groove of the first race. A collar on either the first race or the second race limits pivoting of the first race with respect to the second race.

Abstract: A pivoting ball bearing. The ball bearing includes a first race and a second race and one or more rows of balls disposed therebetween. The first race includes a groove configured to have at least one row of balls track therein at a continuously variable circumferential tracking path while the first race rotates with respect to the second race. Pivoting of the first race with respect to the second race can occur by the balls shifting their circumferential tracking path within the groove of the first race. A collar on either the first race or the second race limits pivoting of the first race with respect to the second race.

Abstract: A roller including an inner tubing and an outer tubing which is fixed relative to the inner tubing by welding the outer tubing to the inner tubing. The roller with weldments is particularly suitably for a nipped application.

Abstract: A roller including an inner tubing and an outer tubing which is fixed relative to the inner tubing by fixing means which includes welding the outer tubing to the inner tubing or by providing a plurality of radially disposed and spaced apart spokes rigidly interconnecting the inner elongate tubing to the outer elongate tubing. The roller with weldments is particularly suitably for a nipped application.

Abstract: The invention provides a tubing material suitable for constructing a double-walled dead shaft idler. The idler so constructed is lighter weight than standard idlers. It permits bearings to be mounted at a distance recessed from the ends of the idler, thereby reducing deflection or bending of the idler. The tubing also includes built-in balancing lugs.

Abstract: A laminating machine has first and second parallel horizontally oriented heated rolls, the first roll positioned below the second roll, and the second roll movable vertically relative to the first roll. There is also provided a pair of pull rollers positioned at the back of the machine for drawing laminating material through the machine. A substantially hollow horizontal work table having a plurality of perforations in the top thereof and a fan at the bottom thereof is positioned at the front of the machine. The fan draws air through the perforations in the top of the table to create a vacuum and retain material against the table as it is fed into the machine. The second work table is positioned at the back of the machine adjacent the pull rollers.