Joy Mm Delaware, Inc.

Joy Global Conveyors Inc

Todd W Kirkpatrick

David Richard White

Robert H Wheeler

A method of manufacturing a multi-piece shaft for an idler roller. The method includes providing a tube having a first end and a second end, mechanically crimping the first end of the tube to a first stub to secure the first stub to the first end of the tube with a mechanical interlock, and mechanically crimping the second end of the tube to a second stub to secure the second stub to the second end of the tube with a mechanical interlock. The first stub extends from the first end of the tube and the second stub extends from the second end of the tube.

Multi-piece shaft

An idler roll bearing assembly, made by a method, includes a shaft having a non-grooved outer surface. A shell extends about the shaft and is rotatable relative to the shaft. A rolling bearing is secured to the shaft. A roll head is secured to the rolling bearing. The roll head includes a portion preventing axial displacement of the rolling bearing. The shell is supported for the relative rotation by the roll head. A retaining sleeve is located on the shaft to prevent axial displacement of the rolling bearing. The sleeve has an interior surface in engagement with the non-grooved outer surface of the shaft. An inner diameter of the sleeve and an outer diameter of the shaft are sized such that the sleeve is secured onto the shaft by frictional interference fit and the sleeve is maintained at a position on the shaft by the frictional interference.

Idler roll ball bearing assembly and method of making

A multi-piece shaft for an idler roller including a tube having a first end and a second end. The shaft includes a first stub secured to the first end of the tube by a mechanical interlock and a second stub secured to the second end of the tube by a mechanical interlock. The first stub extends from the first end and the second stub extends from the second end when secured to the tube such that the tube, the first stub and the second stub define a length of the shaft.

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Winfield, AL, United States of America

Todd W Kirkpatrick