US3628835A — High-speed tapered roller bearing

Claim 1

Independent Claim 153 words

A tapered roller bearing comprising a cup having an inwardly presented tapered raceway, a cone having an outwardly presented tapered raceway and a thrust rib at the large diameter end of he cone raceway, a plurality of tapered rollers fitted between and engaging the raceways of the cup and cone whereby the rollers will roll along the raceways during relative rotation between to cup and cone, the rollers at their large diameter ends having end faces which bear against the thrust rib, and distribution means for directing a fluent lubricating medium toward the surface on the thrust rib against which the roller end faces bear so as to reduce the friction between the thrust rib and rollers, the distribution means rotating as the cup and cone rotate relative to each other and the lubricating medium being propelled toward the thrust rib by the centrifugal forces generated through the rotation of the distribution means.

Claim 2

Dependent Claim 153 words

A tapered roller bearing comprising a cup having an inwardly presented tapered raceway, a cone having an outwardly presented tapered raceway and a thrust rib at the large diameter end of he cone raceway, a plurality of tapered rollers fitted between and engaging the raceways of the cup and cone whereby the rollers will roll along the raceways during relative rotation between to cup and cone, the rollers at their large diameter ends having end faces which bear against the thrust rib, and distribution means for directing a fluent lubricating medium toward the surface on the thrust rib against which the roller end faces bear so as to reduce the friction between the thrust rib and rollers, the distribution means rotating as the cup and cone rotate relative to each other and the lubricating medium being propelled toward the thrust rib by the centrifugal forces generated through the rotation of the distribution means.

Claim 3

Dependent Claim 40 words

A bearing according to claim 1 wherein the distribution means includes a trough located axially beyond the rollers and having an open side presented toward the axis of rotation, and distribution channels leading from the trough toward the thrust rib.

Claim 4

Dependent Claim 37 words

A bearing according to claim 2 wherein the trough has an outwardly presented closed side; wherein the channels communicate with the interior of the trough near its closed side; and wherein the channels extend between adjacent rollers.

Claim 5

Dependent Claim 44 words

A bearing according to claim 1 and further characterized by a cage through which the rollers project, whereby the cage rotates relative to the cone and cup as the rollers roll along the raceways; and wherein the distribution means is mounted on the cage.

Claim 6

Dependent Claim 93 words

A bearing according to claim 4 wherein the distribution means comprises an annular collector trough having an open side presented inwardly toward the axis of rotation and a closed side presented outwardly, and distribution channels communicating with the interior of the trough and extending toward the thrust rib whereby when the fluent lubricating medium is introduced into the open side of the collector trough it will flow toward the closed side of the trough and into the distribution channels due to the centrifugal forces generated by rotation of the trough with the cage.

Claim 7

Dependent Claim 36 words

A bearing according to claim 5 wherein the terminal ends of the distribution channels are directed toward the thrust rib and are located further from the axis of rotation than the open side of the trough.

Claim 8

Dependent Claim 14 words

A bearing according to claim 6 wherein the distribution channels extend between adjacent rollers.

Claim 9

Dependent Claim 112 words

A bearing according to claim 6 wherein the cage comprises a small diameter band located outwardly from the small diameter end of the cone and extending across the small diameter end faces of the rollers, a large diameter band located outwardly from the large diameter end of the cone and extending across the large diameter end end faces of the rollers, and bridges connecting the large and small diameter bands, the bridges extending between the rollers for maintaining the proper circumferential spacing between the rollers; wherein the collector trough is mounted on the small diameter band; and wherein the distribution channels are presented radially inwardly from at least several of the bridges.

Claim 10

Dependent Claim 53 words

A bearing according to claim 8 wherein the distribution channels are tubes which are attached to the bridges; and wherein the terminal ends of the tubes turn inwardly away from the bridges and are directed generally toward the face of the thrust rib against which the large diameter ends of the rollers bear.

Claim 11

Dependent Claim 38 words

A bearing according to claim 8 wherein the small diameter band is provided with an inwardly turned flange which forms a side of the collector trough, and wherein the distribution channels are tubes which fit into the flange.

Claim 12

Dependent Claim 17 words

A bearing according to claim 10 wherein the tubes are anchored in and cantilevered from the flange.

Claim 13

Dependent Claim 89 words

A bearing according to claim 6 wherein the cage has an outer surface presented inwardly from the cup raceway, an inner surface presented outwardly from the cone raceway, and tapered pockets which receive the tapered rollers and open outwardly through the inner and outer surfaces so that rollers can engage the cone and cup raceways; wherein the collector trough is on the end of the cage at which the small diameter ends of the rollers are disposed, and wherein the distribution channels extend through the cage between the pockets.

Claim 14

Dependent Claim 54 words

A bearing according to claim 12 wherein the pockets open axially outwardly of the cage at their large diameter ends, and wherein a retainer ring is secured to the cage and extends across the axially outwardly opening ends of the pockets for retaining the rollers in the pockets and the cage about tHe rollers.

Claim 15

Dependent Claim 46 words

A bearing according to claim 13 wherein the rollers have axial bores extending completely through them; and wherein the cage has ports which extend from the trough and open into the bores, whereby some of the lubricating medium passes through the rollers and dissipates heat therefrom.

Claim 16

Dependent Claim 46 words

A bearing according to claim 6 wherein the rollers have axial bore extending completely through them, and wherein the cage has ports which extend from the trough and open into the bores, whereby some of the lubricating medium passes through the rollers and dissipates heat therefrom.

Claim 17

Dependent Claim 75 words

A bearing according to claim 5 and further characterized by a stationary supply ring positioned adjacent the end of the cone along which the small diameter ends of the rollers roll, the supply ring having an outwardly opening groove which aligns with and opens toward the collector trough on the cage, and at least one supply tube connected with the supply ring and discharging into the groove thereof for supplying the lubricant to the groove.

Claim 18

Dependent Claim 192 words

A bearing comprising an inner member provided with a raceway, an outer member provided with a raceway located opposite to the raceway on the inner member, a plurality of rolling elements fitted between and engaged with the raceways whereby the rolling elements will roll along the raceway as the members rotate relative to each other, a rib on at least one of the members, the rib being engaged by the end faces of the rolling elements for positioning the rolling elements, a cage fitted around the rolling elements for maintaining the correct spacing between the elements, a collector trough carried by the cage, the trough having an open side presented toward the axis of rotation so that a fluent lubricating medium can be introduced into the trough, and distribution channels leading from the trough toward the rib, the terminal ends of the channels being directed generally toward the face of the rib against which the rolling elements bear and being located further from the axis of rotation than the open end of the trough whereby the lubricating medium will flow through the channels under the influence of the centrifugal forces imparted thereto.

Claim 19

Dependent Claim 192 words

A bearing comprising an inner member provided with a raceway, an outer member provided with a raceway located opposite to the raceway on the inner member, a plurality of rolling elements fitted between and engaged with the raceways whereby the rolling elements will roll along the raceway as the members rotate relative to each other, a rib on at least one of the members, the rib being engaged by the end faces of the rolling elements for positioning the rolling elements, a cage fitted around the rolling elements for maintaining the correct spacing between the elements, a collector trough carried by the cage, the trough having an open side presented toward the axis of rotation so that a fluent lubricating medium can be introduced into the trough, and distribution channels leading from the trough toward the rib, the terminal ends of the channels being directed generally toward the face of the rib against which the rolling elements bear and being located further from the axis of rotation than the open end of the trough whereby the lubricating medium will flow through the channels under the influence of the centrifugal forces imparted thereto.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-12-20	1975-06-21	1975-12-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-12-20	1979-06-21	1979-12-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-12-20	1983-06-21	1983-12-21	$7700.00	Window Closed / Lapsed

High-speed tapered roller bearing

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