# US 8,783,966 B2 · Tapered roller bearing with cage > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,966 B2 - Document ID: US8783966B2 - Status: Granted - Kind: B2 - Application number: 14/000,436 - Filed: 2012-02-06 - Published: 2013-12-05 - Granted: 2014-07-22 - Earliest claimed: 2011-02-25 - Assignees: Schaeffler Technologies AG & Co. KG - Applicants: Thorsten Schlegel; Armin Necker; Werner Motzkus - Inventors: Thorsten Schlegel; Armin Necker; Werner Motzkus - Web page: https://patentgrep.com/patent/US8783966B2 ## CPC - F16C 33/467: {Details of individual pockets, e.g. shape or roller retaining means} - F16C 19/364: {with tapered rollers, i.e. rollers having essentially the shape of a truncated cone} - F16C 25/08: self-adjusting - F16C 33/4605: {Details of interaction of cage and race, e.g. retention or centring} - F16C 19/52: with devices affected by abnormal or undesired conditions - F16C 33/4635: {made from plastic, e.g. injection moulded window cages} - F16C 33/4682: {of the end walls, e.g. interaction with the end faces of the rollers} - F16C 41/007: {Encoders, e.g. parts with a plurality of alternating magnetic poles} - F16C 2300/02: General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS ## Abstract A tapered roller bearing (1) with two coaxial bearing rings (2, 3) and a multiplicity of tapered rollers (4) which are arranged between the bearing rings (2, 3), are guided in a cage (10, 11, 12) and roll on raceways (7, 8) on the bearing rings (2, 3), with a rim (9) at the large diameter of the inner bearing ring (3), wherein the cage (10, 11, 12) is formed of side rings (10, 11) and webs (12) which connect them, with the formation of pockets (13) for the tapered rollers (4), and elastic projections (14) are arranged on one side ring (10), which projections (14) interact with the rim (9) and prestress the cage (10, 11, 12) with the tapered rollers (4) axially against the rim (9). In order to achieve play-free and constraint-free setting of the tapered rollers against the guide rim and to make it possible to apply or introduce active or passive transmission elements to the individual components of the tapered roller bearing, fewer projections (14) than pockets (13) are arranged on the side ring (10) which is close to the rim, preferably only in the region of every second pocket (13) in the case of an even number of pockets (13). An active or passive transmission element (20, 21, 22) is arranged on the rotating bearing ring (2, 3) and/or on the cage (10, 11, 12) and/or on at least one of the tapered rollers (4), and at least one sensor is arranged on a stationary component, which sensor interacts with said stationary component for monitoring the state of the kinematic conditions of the bearing (1) during operation. ## Claims ### Claim 1 A tapered roller bearing comprising two coaxial bearing rings, a multiplicity of tapered rollers arranged between the bearing rings, the tapered rollers are guided in a cage and roll on raceways on the bearing rings, a rim located at a large diameter of the inner bearing ring, the cage is formed of side rings and webs which connect the side rings to form pockets for the tapered rollers, and elastic projections are arranged on one of the side rings, said projections interact with the rim and preload the cage with the tapered rollers axially against the rim, and fewer projections than pockets are arranged on the side ring which is close to the rim. ### Claim 2 (depends on 1) The tapered roller bearing as claimed in claim 1, wherein the projections are arranged in a uniformly spaced manner on the side ring which is close to the rim. ### Claim 3 (depends on 1) The tapered roller bearing as claimed in claim 1, wherein the projections are arranged in a region of the pockets on the side ring which is close to the rim. ### Claim 4 (depends on 3) The tapered roller bearing as claimed in claim 3, wherein the projections are arranged on the side ring which is close to the rim only in a region of each second one of the pockets in the case of an even number of pockets. ### Claim 5 (depends on 1) The tapered roller bearing as claimed in claim 1, wherein the projections are bent and are pointed in a region of ends thereof which interact with the rim. ### Claim 6 (depends on 1) The tapered roller bearing as claimed in claim 1, wherein the side ring which is close to the rim is provided with recesses in a region between the webs, on both sides of the projections. ### Claim 7 (depends on 1) The tapered roller bearing as claimed in claim 1, wherein the side ring which is remote from the rim is of corrugated design in a region between the webs and rests by a corrugation crest against small end faces of the tapered rollers. ### Claim 8 (depends on 1) The tapered roller bearing as claimed in claim 1, wherein the cage is a plastic injection molding. ### Claim 9 (depends on 1) The tapered roller bearing as claimed in claim 1, wherein an active or passive transmission element is arranged on at least one of the rotating bearing ring, the cage, or at least one of the tapered rollers, and at least one sensor is arranged on a stationary component, said sensor interacts with said stationary component for monitoring a state of kinematic conditions of the tapered roller bearing during operation. ### Claim 10 (depends on 9) The tapered roller bearing as claimed in claim 9, wherein the transmission element on the cage is formed by an electrically or magnetically acting coating applied at least locally. ### Claim 11 (depends on 9) The tapered roller bearing as claimed in claim 9, wherein the transmission element on the cage is formed by an electrically or magnetically acting, at least locally applied coating on at least one of the projections.