The Torrington Company

Timken US Corporation

Edward P Butler, Iii

Edward C Axler

John M Grillo

Matthew G Urmaza

Leo M Reubelt

John J Lynch

Brian P Berg

Vincent E Leto

A thrust bearing assembly comprising first and second thrust race members () and a roller assembly () positioned therebetween. The first thrust race member () includes a radial race surface (), a flange extending from the race surface and a radial lip () extending radially beyond the flange (). The second thrust race member () includes a radial race surface () and a piloting flange extending from the race surface and includes a retaining lip (). The second thrust member () is positioned within the first thrust member () radial lip () and retained thereby and there is a clearance between the retaining lip () and the first thrust race member flange () external surface.

Piloting configuration for thrust bearing assembly

A thrust bearing assembly including a plurality of rollers having a given diameter d, a cage assembly configured to support the rollers, the cage assembly having a first radial edge that extends a given radial distance X beyond the rollers, and at least one thrust race member. The thrust race member includes a radial race surface, a radial flange extending from the race surface, and a radial lip extending from the flange. The lip is substantially parallel to and at a distance less than the given diameter d from the race surface. The lip has a free end at a distance from the flange greater than the given distance X.

Thrust roller bearing assembly

Inner and outer thrust washers are separated by rollers in rolling contact with the inner and outer thrust washers. Two tabs extend radially from the raceway of one of the inner and outer thrust washers. The two tabs have different configurations and are distributed circumferentially at less than 180 degrees separation.

Thrust bearing assembly

An oscillating bearing is disclosed for a variable-displacement axial piston hydraulic machine having a swashplate with a convex semi-cylindrical bearing face with provisions for attaching the oscillating bearing, and a housing with a concave semi-cylindrical bearing saddle. The oscillating bearing includes thin outer and inner race members having centered openings and formed in arcs congruent with the concave surface of the bearing saddle of the housing and the convex bearing face of the swashplate, respectively. The outer race member has support means on at least one axial end for supporting a timing member which engages a timing feature of the swashplate and synchronizes motion for all parts of the oscillating bearing, and the inner race member has means for holding the inner race against the convex bearing face of the swashplate. A separator is interposed between the inner and outer race members, the separator being formed in an arc having inner and outer surfaces parallel to the proximal surfaces of the race members, the separator also having an axially centered opening and two additional substantially rectangular openings axially spaced from the axial ends of the separator and the centered opening. The additional openings serve as pockets for anti-friction rollers. The separator further has one axial end which extends beyond the proximal axial ends of the inner and outer races and which includes a timing notch for engaging the timing member.

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Torrington, CT, United States of America

Edward P Butler, Iii