US 4,136,916 AGranted

Unitized single row tapered roller bearing

AssigneeThe Timken Company

InventorsLawrence L. Musselman, William E. Harbottle, Joseph P. Berecek

Life of this patent

Estimating the term…

Loading patent…

Abstract

A single row tapered roller bearing capable of taking radial loading as well as thrust loading in both axial directions has a cone provided with an integral thrust rib at the small diameter end of its raceway, a cup surrounding the cone, tapered rollers between the raceways of the cup and cone, a separate rib ring at the large diameter end of the cup raceway, and a cage for maintaining correct spacing between the rollers in the circumferential direction. The cage at one end has an outwardly directed lip which is too large to fit through the rib ring and at its other end has outwardly directed tabs which are too large to fit through the cup without deflecting. In effect, the cup and rib ring are captured between the lip and tabs on the cage, and since the rib ring and cup cannot separate, the rollers and cone remain in place, providing a bearing which is unitized sufficiently for normal handling.

Claims16

Dependent claims

A bearing capable of taking radial loading and also thrust loading in both axial directions and comprising:

an inner race having an outwardly presented raceway that is larger at its one end than at its other end and a thrust rib projected outwardly from the raceway at the small diameter end thereof;
an outer race surrounding the inner race and having a raceway that is presented inwardly and is larger at its one end than at its other end, the raceway of the outer race being located opposite the raceway of the inner race;
rolling elements arranged in a single row between the raceways of the inner and outer races and at their sides conforming to the configuration of the raceways so to seat against the raceways, the rolling elements having large and small diameter ends with the small diameter ends being located adjacent to the thrust rib on the inner race;
a separate rib ring at the large diameter end of the raceway on the outer race, the rib ring projecting inwardly from the raceway of the outer race and being located adjacent to the large diameter ends of the rolling elements;
and a cage between the inner and outer races and being configured to maintain a predetermined circumferential spacing between the rolling elements, the cage having retaining means for preventing separation of the outer race and rib ring.

2 more elements

A bearing for accommodating thrust loading in both axial directions as well as radial loading, said bearing comprising:

a cone having an outwardly presented tapered raceway and an outwardly directed thrust rib at the small diameter end of the raceway;
a cup surrounding the cone and having an inwardly presented tapered raceway located opposite to the raceway on the cup;
tapered rollers arranged in a single row between the cup and cone, the rollers having their tapered side faces against the raceways of the cone and cup and their small diameter ends adjacent to the thrust rib on the cone;
a separate rib ring at the large diameter end of the raceway on the cup, the rib ring projecting inwardly from the raceway of the cup and being adjacent to the large diameter ends of the tapered rollers, whereby the rollers are captured between the cone thrust rib and the rib ring;
and a cage between the cup and cone and having large and small end rings which are located immediately beyond the large and small diameter ends of the rollers and spacing elements which connect the end rings, the spacing elements being positioned to maintain the proper spacing between adjacent rollers, the cage further having retaining elements which project outwardly from the large and small end rings and interfere with the rib ring and cup such that the cup and rib ring are captured between the retaining elements and are not easily separated, whereby the bearing is unitized.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/890,589Filed 20 Mar 1978 · continuation
Priority: 27 Jun 1977
Granted: 30 Jan 1979
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F16C 43/06
Assembling rolling-contact bearings: placing rolling bodies in cages or bearings
F16C 19/225
With bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings: details of the ribs supporting the end of…
F16C 19/364
With a single row of rollers: with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
F16C 33/4605
Cages for rollers or needles: details of interaction of cage and race, e.g. retention or centring