Bearing unit
OwnerFabio BOGLIACINO, Riccardo NARDICCHIAinventors
Life of this patent
Estimating the term…
Abstract
A bearing unit has a central axis of rotation includes a radially outer ring having a sliding raceway, a radially inner ring having a sliding raceway, and a plurality of rolling bodies interposed between the radially outer ring and the radially inner ring to enable mutual rotation between the radially outer ring and the radially inner ring. A surface of the sliding raceway of the radially outer ring and/or a surface of the sliding raceway of the radially inner ring and/or a surface of one of the rolling bodies has a textured surface structure that includes micro alveoli divided by crests, and the micro alveoli are arranged along intersecting lines.
Claims16
A bearing unit having a central rotation axis and comprising:
- a radially outer ring having a sliding raceway,
- a radially inner ring having a sliding raceway, and
- a plurality of rolling bodies interposed between the radially outer ring and the radially inner ring to enable mutual rotation between the radially outer ring and the radially inner ring,
- wherein a surface of the sliding raceway of the radially outer ring and/or a surface of the sliding raceway of the radially inner ring and/or a surface of one of the rolling bodies has a textured surface structure comprising micro alveoli divided by crests, and
- wherein the micro alveoli are arranged along intersecting lines.
A wheel hub assembly comprising:
- a bearing unit having a central rotation axis and comprising:
- a radially outer ring having a first sliding raceway and a second sliding raceway,
- a radially inner ring comprising a first inner ring element having a first sliding raceway, the first inner ring element being mounted on a second inner ring element, the second inner ring element having a second sliding raceway, and
- a first plurality of rolling bodies between the first sliding raceway of the radially outer ring and the first sliding raceway of the radially inner ring and a second plurality of rolling bodies between the second sliding raceway of the radially outer ring and the second sliding raceway of the radially inner ring,
- wherein a surface of the first and/or second sliding raceway of the radially outer ring and/or a surface of the first and/or second sliding raceway of the radially inner ring and/or a surface of one of the first plurality of rolling bodies and/or a surface of one of the second plurality of rolling bodies has a textured surface structure comprising micro alveoli divided by crests, and
- wherein the micro alveoli are arranged along intersecting lines.
Dependencies are inferred from the claim text.