Bearing

Patent metadata

Field	Value
Publication number	US-2016298683-A1
Application number	US-201615090997-A
Country	US
Kind code	A1
Filing date	Apr 5, 2016
Priority date	Apr 9, 2015
Publication date	Oct 13, 2016
Grant date	—

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

1 . A 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, the roller elements further including axially inner ends, 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 the cage is roller centered by the axially inner ends.

2 . The spherical roller bearing according to claim 1 , wherein the bearing further comprises a specific pitch circle diameter (PCD), and wherein
each cage pocket further provides a cage pocket bottom that faces the axially inner end of the roller element in the respective cage pocket, and wherein the cage pocket bottom is configured to contact the axially inner end of the roller element, either: radially outwardly from the pitch circle diameter (PCD), in the pitch circle diameter (PCD), or radially inwardly from the pitch circle diameter (PCD).

3 . The spherical roller bearing according to claim 2 , wherein the cage pocket bottom is further configured to contact the roller element in a radial top region of the bearing that is located opposite to the direction of the force of gravity.

4 . The spherical roller bearing according to claim 2 , 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.

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

6 . 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.

7 . 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.

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

9 . 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

• F16C19/38 Primary

  with two or more rows of rollers · CPC title

• F16C33/48

  for multiple rows of rollers or needles · CPC title

• F16C33/36 Primary

  with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces · CPC title

• F16C33/49

  comb-shaped · CPC title

• F16C2240/80

  Pitch circle diameters [PCD] · CPC title