Bearing

Patent metadata

Field	Value
Publication number	US-9797440-B2
Application number	US-201615090997-A
Country	US
Kind code	B2
Filing date	Apr 5, 2016
Priority date	Apr 9, 2015
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

The present disclosure regards a spherical roller bearing having, an outer ring providing at least one inner raceway, an inner ring providing a first and a second outer raceway, a plurality of roller elements arranged in a first and second roller row disposed between the at least one inner raceway and the respective first and second outer raceway, the roller elements further providing axially inner ends. Moreover, the bearing includes a cage for one of guiding and retaining the roller elements in the first and second roller row, the cage including a plurality of cage pockets, wherein one of the roller elements is disposed within each cage pocket, and wherein the cage is roller centered by the axially inner ends.

First claim

The invention claimed is:

1. A spherical roller bearing having a specific pitch circle diameter (PCD), the spherical roller bearing comprising:
an outer ring providing at least one inner raceway,
an inner ring providing a first and a second outer raceway,
a plurality of roller elements arranged in a first and second roller row disposed between the at least one inner raceway and the respective first and second outer raceway, each roller element comprising an axially inner end, and
a cage for one of guiding and retaining the roller elements in the first and second roller row, the cage having a plurality of cage pockets, wherein one of the roller elements is disposed within each cage pocket, and wherein
each respective cage pocket further provides a cage pocket bottom that faces the axially inner end of the roller element in the respective cage pocket, wherein the cage pocket bottom is configured to be located entirely radially outward from the specific pitch circle diameter (PCD) such that a radially inner end of the cage pocket bottom contacts the axially inner end of the roller element at a location radially outward from the specific pitch circle diameter (PCD),
the cage is held in position by the axially inner ends.

2. The spherical roller bearing according to claim 1 , wherein two axially opposite cage pockets bottoms for the first and second respective roller rows are inclined and follow the contact angles of the respective first and second roller rows.

3. The spherical roller bearing according to claim 1 , wherein no spacer ring is axially disposed between the first and second roller rows.

4. The spherical roller bearing according to claim 1 , wherein at least one of the plurality of cage pockets is radially outwardly enclosing the roller element contained therein such that the roller element will be restricted to move radially outwardly out from the at least one cage pocket.

5. The spherical roller bearing according to claim 1 , wherein the inner ring further comprises a first and second axially outer region on opposite axial sides of the bearing, and wherein the respective first and second axially outer region includes a first and second respective side flange.

6. The spherical roller bearing according to claim 1 , wherein the cage is a comb-shaped cage.

7. The spherical roller bearing according to claim 1 , wherein no mid-flange is axially disposed between the first and second roller rows.

Assignees

• Loof Marcus
• James Peter
• Stigsjöö Lars
• Skf Ab

Inventors

• Loof Marcus
• James Peter
• Stigsjöö Lars

Classifications

• F16C33/4682

  of the end walls, e.g. interaction with the end faces of the rollers · CPC title

• F16C33/467

  Details of individual pockets, e.g. shape or roller retaining means · CPC title

• F16C33/48

  for multiple rows of rollers or needles · CPC title

• F16C19/38 Primary

  with two or more rows of rollers · CPC title

• F16C23/086 Primary

  forming a track for rolling elements · CPC title