Roller Bearing Company of America, Inc.

Werner B Guilford

Robert Pallini

Kevin Sullivan

A roller bearing includes an outer ring having a substantially cylindrical internal bearing surface and an outside surface defining a plurality of protuberances. A protective coating is applied to the outside surface of the outer ring. An inner ring is coaxially disposed at least partially in the outer ring and has a substantially cylindrical external bearing surface. The external bearing surface and the internal bearing surface define an annular cavity in which a plurality of rolling elements is disposed. The rolling elements are in rolling engagement with the external bearing surface and the internal bearing surface. The outside surface of the outer ring can be case hardened, for example the outer ring can be carburized. The outside surface of the outer ring can be knurled. A method of manufacturing such a bearing is also disclosed.

Roller bearing with knurled wear resistant exterior surface and method of manufacturing the same

An extended life ball transfer unit has a housing with a well of generally cup-shaped configuration with at least the lower portion of its surface being defined by a pair of radii mutually offset to opposite sides from its vertical axis to generate a gothic church arch cross section. A passage extends therethrough at the base of the housing well. Sealed in the well is a spherical conveyor ball having a radius of smaller length than the radii defining the lower surface of the well, and the well defining radii having their origins above the center of the conveyor ball. A multiplicity of spherical bearing balls is disposed between the conveyor ball and at least the lower portion of the well. The bearing balls support the conveyor ball and transferring the load from the conveyor ball to the housing over an annular area defined by an arc of about 5-15&#xb0; with its center spaced about 30&#xb0;&#x2013;40&#xb0; upwardly from the passage. A annular cap is seated in the upper portion of the well and has an inner surface portion bearing against the surface of the conveyor ball to provide a sealing action limiting debris from passing into the lower portion of the well.

High endurance high capacity ball transfer unit

A cam follower assembly is provided which has a bearing outer ring on an inner cylinder, with two rows of cylindrical rollers there-between. The rollers are provided with crowned end portions and are held in place by inturned flanges at ends of the bearing outer ring. A thrust washer is carried by the inner cylinder, and projects outwardly into a space between the two rows of cylindrical rollers, to accommodate endwise thrust load, such that endwise thrust is transferred between the bearing outer ring and the inner cylinder by passing through the rollers of a single row of cylindrical rollers. The inner cylinder is provided with a mounting shaft adapted to be mounted in a carrier and fastened together therewith.

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Hulmeville, PA, United States of America

Werner B Guilford