Method and device for producing an angular contact roller bearing

Patent metadata

Field	Value
Publication number	US-10655672-B2
Application number	US-201615746538-A
Country	US
Kind code	B2
Filing date	Aug 3, 2016
Priority date	Aug 4, 2015
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

The disclosure relates to a method for producing an angular contact roller bearing with unilaterally delimiting rims. The disclosure also relates to multiple variants of a device for assembling the angular contact roller bearing. The method may include conically forming an inner raceway into a cylindrical section of an outer shell surface of an inner bearing ring such that the inner raceway is inclined relative to the bearing axis of rotation (AL) and is delimited at one end by a rim, conically forming an outer raceway into a cylindrical section of an inner shell surface of an outer bearing ring such that the outer raceway is inclined relative to the bearing axis of rotation (AL) and is delimited at one end by a rim, and 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.

First claim

The invention claimed is:

1. A method for producing an angular contact roller bearing with unilaterally delimiting rims, comprising:
conically forming an inner raceway into a cylindrical section of an outer shell surface of an inner bearing ring such that the inner raceway is inclined relative to a bearing axis of rotation (AL) and is delimited at one end by a rim;
conically forming an outer raceway into a cylindrical section of an inner shell surface of an outer bearing ring such that the outer raceway is inclined relative to the bearing axis of rotation (AL) and is delimited at one end by a rim;
assembling, via an eccentric assembly method, the inner and outer bearing rings and a multiplicity of roller-type rolling bodies, which roll on the raceways of said bearing rings;
the eccentric assembly method including:
in a first step the inner bearing ring is placed with the inner bearing ring 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 the inner bearing ring rim against an inner diameter side of the auxiliary ramp;
in a second step the outer bearing ring is arranged with the outer bearing ring 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;
in a third step 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;
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; and
in a fifth step 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 the rolling bodies raceways in the bearing rings, with the ovalization of the outer bearing ring being eliminated.

2. The method as claimed in claim 1 , 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.

3. The method as claimed in claim 1 , 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 a 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.

4. The method as claimed in claim 3 , wherein, in a seventh step, a bearing interior space is filled with lubricant, and two elastomer sealing disks are inserted into encircling fastening grooves in the inner shell surface of the outer bearing ring.

5. A method for producing an angular contact roller bearing with unilaterally delimiting rims, comprising:
conically forming an inner raceway into a cylindrical section of an outer shell surface of an inner bearing ring such that the inner raceway is inclined relative to a bearing axis of rotation (AL) and is delimited at one end by a rim;
conically forming an outer raceway into a cylindrical section of an inner shell surface of an outer bearing ring such that the outer raceway is inclined relative to the bearing axis of rotation (AL) and is delimited at one end by a rim;
assembling, via an eccentric assembly method, the inner and outer bearing rings and a multiplicity of roller-type rolling bodies, which roll on the raceways of said bearing rings;
the eccentric assembly method including:
in a first step of the eccentric assembly method, the outer bearing ring is placed, with the outer bearing ring 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 the outer bearing ring rim against an outer diameter side of the auxiliary ramp;
in a second step of the eccentric assembly method, the inner bearing ring is arranged, with the inner bearing ring 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;
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;
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; and
in a fifth step 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 the rolling bodies raceways in the bearing rings, with the ovalization of the outer bearing ring being eliminated.

6. The method as claimed in claim 5 , 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.

7. The method as claimed in claim 5 , 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 a 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.

8. The method as claimed in claim 7 , wherein, in a seventh step, a bearing interior space is filled with lubricant, and two elastomer sealing disks are inserted into encircling fastening grooves in the inner shell surface of the outer bearing ring.

Assignees

• Schaeffler Technologies Ag

Inventors

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

Classifications

• F16C19/364 Primary

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

• F16C43/06 Primary

  Placing rolling bodies in cages or bearings · CPC title

• F16C33/366

  Tapered rollers, i.e. rollers generally shaped as truncated cones · CPC title

• F16C43/08

  by deforming the cages or the races · CPC title

• F16C19/225

  Details of the ribs supporting the end of the rollers · CPC title