| US 7,547,147 B2 | ||
| Wheel bearing unit embodied as an angular contact ball bearing | ||
| Peter Niebling, Bad Kissingen (Germany); Heinrich Hofmann, Schweinfurt (Germany); Darius Dlugai, Schweinfurt (Germany); Jens Heim, Schweinfurt (Germany); and David Ilgert, Ontario (Canada) | ||
| Assigned to Fag Kugelfischer AG, (Germany) | ||
| Appl. No. 10/564,256 PCT Filed Jul. 09, 2004, PCT No. PCT/DE2004/001495 § 371(c)(1), (2), (4) Date Apr. 18, 2006, PCT Pub. No. WO2005/008086, PCT Pub. Date Jan. 27, 2005. |
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| Claims priority of application No. 103 31 936 (DE), filed on Jul. 15, 2003. | ||
| Prior Publication US 2007/0104404 A1, May 10, 2007 | ||
| Int. Cl. F16C 19/18 (2006.01) | ||
| U.S. Cl. 384—544 [384/504; 384/512] | 17 Claims |
| 1. A wheel bearing unit embodied as an angular contact ball bearing with a central axis, comprising:
at least two first rows of bearing balls,
at least two second rows of bearing balls, the second rows being arranged parallel to the first rows,
an outer ring assembly extending around all the balls together radially on the outside,
a first pairing formed from a first one of the first rows of balls and from a first one of the second rows of balls, each
row of the first pairing being preloaded against a second pairing formed from a second one of the first rows of balls and
from a second one of the second rows of balls, each of the pairings having a ball cage to guide the balls of both its rows,
the outer ring having located axially on each side of a radially inwardly projecting rim a first inner raceway for one of
the first rows of balls at one axial side of the rim and a second inner raceway, adjacent to the first inner raceway, for
one of the second rows of balls at the other axial side of the rim.
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