Method and device for producing an angular contact roller bearing

Patent metadata

Field	Value
Publication number	US-10865829-B2
Application number	US-201615746836-A
Country	US
Kind code	B2
Filing date	Aug 3, 2016
Priority date	Aug 4, 2015
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

Methods for producing an angular contact roller bearing with unilaterally delimiting rims are disclosed, as well as devices for assembling the angular contact roller bearing. The method may include generating an outer shell surface on an inner bearing ring, which outer shell surface is inclined in a first inclination direction relative to the bearing axis of rotation (AL) in an axial direction, generating an inner shell surface on an outer bearing ring, which inner shell surface is inclined in a second inclination direction relative to the bearing axis of rotation (AL) in an axial direction, wherein the second inclination direction is oriented oppositely to the first inclination direction, conically forming an inner raceway into the outer shell surface of the inner bearing ring such that the inner raceway is inclined relative to the bearing axis of rotation (AL) and is delimited at precisely one end by a rim, conically forming an outer raceway into the inner shell surface of the outer bearing ring, such that the outer raceway is inclined relative to the bearing axis of rotation (AL) and is delimited at precisely one end by a rim, assembling the inner and outer bearing rings and a multiplicity of roller-type rolling bodies, which roll on the raceways of said bearing rings, in accordance with an eccentric assembly method known as an assembly method for deep-groove ball bearings.

First claim

The invention claimed is:

1. A method for producing an angular contact roller bearing with unilaterally delimiting rims, comprising:
generating an outer shell surface on an inner bearing ring, which outer shell surface is inclined in a first inclination direction relative to a bearing axis of rotation in an axial direction to form a first inclination angle,
generating an inner shell surface on an outer bearing ring, which inner shell surface is inclined in a second inclination direction relative to the bearing axis of rotation in an axial direction to form a second inclination angle, wherein the second inclination direction is oriented oppositely to the first inclination direction,
conically forming an inner raceway into the outer shell surface of the inner bearing ring such that the inner raceway is inclined in an opposite direction from the outer shell surface relative to the bearing axis of rotation and is delimited at precisely one end by a rim,
conically forming an outer raceway into the inner shell surface of the outer bearing ring, such that the outer raceway is inclined in a same direction as the inner shell surface relative to the bearing axis of rotation and is delimited at precisely one end by a rim,
assembling, according to an eccentric assembly method for deep-groove ball bearings, the inner and outer bearing rings and a multiplicity of roller-type rolling bodies, which roll on the raceways of said bearing rings;
wherein, in a first step of the eccentric assembly method, the inner bearing ring is placed, with its face side formed with the rim, onto a horizontal assembly plane with a convex sickle-shaped auxiliary ramp in such a way that said inner bearing ring bears with its rim against an inner diameter side of the auxiliary ramp;
wherein, in a second step of the eccentric assembly method, the outer bearing ring is arranged, with its face side formed with the rim upward, eccentrically with respect to the inner bearing ring such that, at one side, the auxiliary ramp is arranged between the bearing rings and, at the other side, offset 180° with respect to a center of the auxiliary ramp, the bearing rings bear against one another;
wherein, in a third step of the eccentric assembly method, a sickle-shaped free space formed between the outer bearing ring and the inner bearing ring is filled with the roller-type rolling bodies in the form of tapered rollers such that relatively small face sides of said roller-type rolling bodies lie on an oblique side of the auxiliary ramp.

2. The method as claimed in claim 1 , wherein the first and second inclination angles are equal in magnitude.

3. The method as claimed in claim 1 , wherein, in a fourth step of the eccentric assembly method, the outer bearing ring is clamped, at a level of a contact point with the inner bearing ring and at a level of a point on the outer shell surface of said outer bearing ring which is offset 180° with respect to the contact point, such that the outer bearing ring is slightly ovalized within its elasticity limit.

4. The method as claimed in claim 3 , wherein, in a fifth step of the eccentric assembly method, the inner bearing ring is displaced into a coaxial position with respect to the outer bearing ring, and the roller-type rolling bodies are uniformly circumferentially distributed in their raceways in the bearing rings, with the ovalization of the outer bearing ring being eliminated.

5. The method as claimed in claim 4 , wherein, in a sixth step of the eccentric assembly method, a bearing cage in the form of a comb-type cage is inserted with cage webs between the roller-type rolling bodies from the side with relatively small face sides of said roller-type rolling bodies, and said bearing cage is engaged with detent lugs with detent action against the inner surface of the rim on the inner bearing ring.

6. The method as claimed in claim 4 , wherein, in a sixth step of the eccentric assembly method, a bearing cage in the form of a comb-type cage is inserted with cage webs between the roller-type rolling bodies from the side with relatively large face sides of said roller-type rolling bodies, and said bearing cage is engaged with detent webs with detent action against the inner surface of the rim on the outer bearing ring.

7. A method for producing an angular contact roller bearing with unilaterally delimiting rims, comprising:
generating an outer shell surface on an inner bearing ring, which outer shell surface is inclined in a first inclination direction relative to a bearing axis of rotation in an axial direction to form a first inclination angle,
generating an inner shell surface on an outer bearing ring, which inner shell surface is inclined in a second inclination direction relative to the bearing axis of rotation in an axial direction to form a second inclination angle, wherein the second inclination direction is oriented oppositely to the first inclination direction,
conically forming an inner raceway into the outer shell surface of the inner bearing ring such that the inner raceway is inclined in an opposite direction from the outer shell surface relative to the bearing axis of rotation and is delimited at precisely one end by a rim,
conically forming an outer raceway into the inner shell surface of the outer bearing ring, such that the outer raceway is inclined in a same direction as the inner shell surface relative to the bearing axis of rotation and is delimited at precisely one end by a rim,
assembling, according to an eccentric assembly method for deep-groove ball bearings, the inner and outer bearing rings and a multiplicity of roller-type rolling bodies, which roll on the raceways of said bearing rings;
wherein, in a first step of the eccentric assembly method, the outer bearing ring is placed, with its face side formed with the rim, onto a horizontal assembly plane with a convex sickle-shaped auxiliary ramp in such a way that said outer bearing ring bears with its rim against an outer diameter side of the auxiliary ramp;
wherein, in a second step of the eccentric assembly method, the inner bearing ring is arranged, with its face side formed with the rim upward, eccentrically with respect to the outer bearing ring such that, at one side, the auxiliary ramp is arranged between the bearing rings and, at the other side, offset 180° with respect to a center of the auxiliary ramp, the bearing rings bear against one another;
wherein, in a third step of the eccentric assembly method, a sickle-shaped free space formed between the inner bearing ring and the outer bearing ring is filled with the roller-type rolling bodies in the form of tapered rollers such that relatively large face sides of said roller-type rolling bodies lie on an oblique side of the auxiliary ramp.

8. The method as claimed in claim 7 , wherein, in a fourth step of the eccentric assembly method, the outer bearing ring is clamped, at a level of a contact point with the inner bearing ring and at a level of a point on the outer shell surface of said outer bearing ring which is offset 180° with respect to the contact point, such that the outer bearing ring is slightly ovalized within its elasticity limit.

9. The method as claimed in claim 7 , wherein, in a fifth step of the eccentric assembly method, the inner bearing ring is displaced into a coaxial position with respect to the outer bearing ring, and the roller-type rolling bodies are uniformly circumferentially distributed in their raceways in the bearing rings, with an ovalization of the outer bearing ring being eliminated.

10. The method as claimed in claim 9 , wherein, in a sixth step of the eccentric assembly method, a bearing cage in the form of a comb-type cage is inserted with cage webs between the roller-ty

Assignees

• Schaeffler Technologies Ag

Inventors

• Hofmann Heinrich
• Geiger Ernst
• Eidloth Rainer
• Rumpel Reinhard

Classifications

• F16C43/06 Primary

  Placing rolling bodies in cages or bearings · CPC title

• F16C33/4605

  Details of interaction of cage and race, e.g. retention or centring · CPC title

• F16C19/364 Primary

  with tapered rollers, i.e. rollers having essentially the shape of a truncated cone · CPC title

• F16C33/495

  formed as one piece cages, i.e. monoblock comb cages · CPC title

• F16C33/585

  of raceways, e.g. ribs to guide the rollers · CPC title