Trunnion roller bearing retainer

• US 5,501,532 A
• Filed: 11/23/1994
• Issued: 03/26/1996
• Est. Priority Date: 11/23/1994
• Status: Expired due to Term

• Current Assignee: Koyo Bearings North America LLC (Toyota Motor Corporation)
• Original Assignee: The Torrington Company (The Timken Company)
• Inventors: Terrill, Arnold M.
• Primary Examiner(s): Footland, Lenard A.
• Application Number:
  US08/344,192
• Time in Patent Office: 489 Days
• Field of Search: 384/572, 384/564, 384/569, 384/575, 384/551, 384/584
• US Class Current: 384/572
• CPC Class Codes: F16C 19/46 with one row or needles
• CPC Class Codes: F16C 2240/84 with full complement of balls or rollers, i.e. sum of clearances less than diameter of one rolling element
• CPC Class Codes: F16C 33/605 with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
• CPC Class Codes: F16C 43/06 Placing rolling bodies in cages or bearings
• CPC Class Codes: F16D 3/385 Bearing cup; Bearing construction; Bearing seal; Mounting of bearing on the intermediate member mounting of bearing in fork F16D3/382

Abstract

There is provided a roller bearing having an outer roller race with an integral radially inwardly directed lip at each end. A complement of axially extending trunnion rollers is arranged between the lips. A removable retainer ring is interconnected to the lip to prevent radial displacement of the trunnion rollers. The retainer ring includes a cylindrical medial portion disposed concentrically inside the lip, an outer flange extending radially outwardly from one side of the medial portion and overlying a portion of the outer surface of the lip, and an inner flange extending from the other side edge of the medial portion and extending in an outwardly inclined direction and terminating in abutting relation with the inner surface of the lip.

Claims

1. A roller bearing comprising:

an annular sleeve defining an outer roller race, and including an integral radially inwardly directed lip at each end thereof, with each of said lips having an outer surface and an oppositely directed inner surface;

a complement of trunnion rollers arranged on said race between said lips so that said inner surfaces act as axial thrust surfaces for the ends of the trunnion rollers;

a retainer ring mounted on at least one of said lips for retaining the adjacent ends of the trunnion bearings on said race, said retainer ring comprising;

(a) a cylindrical medial portion disposed concentrically inside said one lip;

(b) an outer flange extending radially outwardly from one side edge of said medial portion and overlying a portion of the outer surface of said one lip; and

(c) an inner flange extending from the other side edge of said medial portion and extending in an outwardly inclined direction and into abutting relation with said inner surface of said one lip.

2. The roller bearing according to claim 1, wherein the inner surface of said lip has an outwardly beveled surface.

3. The roller bearing according to claim 1 wherein said inner flange is configured to overlie in spaced relation a portion of said medial portion of said retainer ring.

4. The roller bearing according to claim 3 wherein said retainer ring is continuous about its periphery, and is formed of a material which permits said inner flange to resiliently flex toward said medial portion of said retainer ring so as to facilitate the assembly of said retainer ring on said one lip.

5. The roller bearing according to claim 1, wherein said inner flange is an outwardly inclining deformable protrusion extending into abutting relation with and being biased against the inner surface of said lip.

6. The roller bearing according to claim 1 wherein said retainer ring comprises a molded plastic material.

7. The roller bearing according to claim 6, wherein said retainer ring includes a reinforcing member imbedded into said medial portion and overlying a major portion of the outer surface of said lip.

8. The roller bearing according to claim 1, wherein said retainer ring includes a radially inwardly extending reinforcing portion.

9. A retainer ring for retaining trunnion rollers in position in the race of an annular sleeve of a roller bearing having an integrally inwardly turned radially extending lip at each end of said sleeve with each of said lips having an outer surface and an oppositely directed inner surface, said retainer ring comprising:

(a) a cylindrical medial portion adapted to be disposed concentrically inside said one lip;

(b) an outer flange extending radially outwardly from one side edge of said medial portion and adapted to overlie a portion of the outer surface of said one lip; and

(c) an inner flange extending from the other side edge of said medial portion and extending in an outwardly inclined direction and capable of forming an abutting relation with said inner surface of said one lip.

10. The retainer ring according to claim 9 wherein said inner flange is configured to overlie in spaced relation a portion of said medial portion of said ring.

11. The retainer ring according to claim 10 wherein said retainer ring is continuous about its periphery, and is formed of a material which permits said inner flange to resiliently flex toward said medial portion of said ring so as to facilitate the assembly of said ring on said one lip.

12. The retainer ring according to claim 9, wherein said inner flange is an outwardly inclined deformable protrusion extending in abutting relation with and biased against the inner surface of said lip.

13. The retainer ring according to claim 9, wherein said retainer ring comprises a molded plastic material.

14. The retainer ring according to claim 13, wherein said retainer ring includes a radially inwardly extending reinforcing member imbedded into said medial portion and overlying a major portion of the outer surface of said lip.

15. The retainer ring according to claim 9, wherein said retainer ring includes a radially inwardly extending reinforcing member.